{"id":3513,"date":"2026-09-23T01:39:41","date_gmt":"2026-09-23T01:39:41","guid":{"rendered":"https:\/\/www.cameraegg.org\/camerareview\/?p=3513"},"modified":"2026-09-23T01:45:42","modified_gmt":"2026-09-23T01:45:42","slug":"best-memory-card-for-canon-eos-r100","status":"publish","type":"post","link":"https:\/\/www.cameraegg.org\/camerareview\/best-memory-card-for-canon-eos-r100\/","title":{"rendered":"Best Memory Card for Canon EOS R100"},"content":{"rendered":"<div class=\"gagen-article gagen-v2\">\n<div class=\"article-intro\">\n<p>The EOS R100 has one SD slot, and that slot is UHS-I only. 4K at 120 Mbps needs a UHS Speed Class 3 card, and Canon\u2019s own timing table is built on 128GB. The SanDisk Extreme PRO SDXC UHS-I 128GB is a V30, U3 card at that capacity, with a published write speed of 90 MB\/s. <a href=\"https:\/\/www.amazon.com\/s?k=SanDisk+Extreme+PRO+SDXC+UHS-I+128GB&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">Check SanDisk Extreme PRO SDXC UHS-I 128GB on Amazon<\/a>.<\/p>\n<\/div>\n\n<div class=\"quick-picks-box\">\n  <div class=\"qp-header\">\n    <h2>Our Top Picks at a Glance<\/h2>\n    <p class=\"qp-sub\">Reviewed September 2026 \u00b7 one UHS-I SD slot \u00b7 4K needs U3 \u00b7 6.5 fps<\/p>\n  <\/div>\n  <div class=\"qp-cards\">\n    <div class=\"qp-card qp-card--gold\">\n      <span class=\"qp-num\">01<\/span>\n      <span class=\"qp-badge\">\ud83c\udfc6 Best Overall<\/span>\n      <strong class=\"qp-name\">SanDisk Extreme PRO SDXC UHS-I 128GB<\/strong>\n      <div class=\"qp-rating\">\u2605\u2605\u2605\u2605\u2605 <span class=\"qp-score\">4.8 \/ 5.0<\/span> <span class=\"qp-reviews\">\u00b7 2026 pick<\/span><\/div>\n      <p class=\"qp-why\">UHS-I, V30, and U3 at 128GB, the capacity Canon timed at about 2 hours 21 minutes of 4K. Write speed is 90 MB\/s.<\/p>\n      <a href=\"https:\/\/www.amazon.com\/s?k=SanDisk+Extreme+PRO+SDXC+UHS-I+128GB&#038;tag=e6890-20&#038;linkCode=osi\" class=\"qp-btn\" target=\"_blank\" rel=\"nofollow sponsored noopener\">Check Price at Amazon<\/a>\n      <a href=\"#best-overall\" class=\"qp-jump\">Read full review \u2193<\/a>\n    <\/div>\n    <div class=\"qp-card qp-card--green\">\n      <span class=\"qp-num\">02<\/span>\n      <span class=\"qp-badge\">\ud83d\udc8e Best Value<\/span>\n      <strong class=\"qp-name\">Lexar Professional 1066x SDXC UHS-I 64GB<\/strong>\n      <div class=\"qp-rating\">\u2605\u2605\u2605\u2605\u2606 <span class=\"qp-score\">4.5 \/ 5.0<\/span> <span class=\"qp-reviews\">\u00b7 2026 pick<\/span><\/div>\n      <p class=\"qp-why\">Same UHS-I V30 U3 class at 64GB, with a published write speed of 120 MB\/s. About half the 128GB 4K runtime.<\/p>\n      <a href=\"https:\/\/www.amazon.com\/s?k=Lexar+Professional+1066x+SDXC+UHS-I+64GB&#038;tag=e6890-20&#038;linkCode=osi\" class=\"qp-btn\" target=\"_blank\" rel=\"nofollow sponsored noopener\">Check Price at Amazon<\/a>\n      <a href=\"#best-value\" class=\"qp-jump\">Read full review \u2193<\/a>\n    <\/div>\n    <div class=\"qp-card qp-card--blue\">\n      <span class=\"qp-num\">03<\/span>\n      <span class=\"qp-badge\">\ud83d\udcb0 Budget Pick<\/span>\n      <strong class=\"qp-name\">Kingston Canvas Go! Plus SDXC 64GB<\/strong>\n      <div class=\"qp-rating\">\u2605\u2605\u2605\u2605\u2606 <span class=\"qp-score\">4.3 \/ 5.0<\/span> <span class=\"qp-reviews\">\u00b7 2026 pick<\/span><\/div>\n      <p class=\"qp-why\">UHS-I, Class 10, U3, and V30 at 64GB. Kingston rates this capacity at 200 MB\/s read and 100 MB\/s write.<\/p>\n      <a href=\"https:\/\/www.amazon.com\/s?k=Kingston+Canvas+Go%21+Plus+SDXC+64GB&#038;tag=e6890-20&#038;linkCode=osi\" class=\"qp-btn\" target=\"_blank\" rel=\"nofollow sponsored noopener\">Check Price at Amazon<\/a>\n      <a href=\"#budget-pick\" class=\"qp-jump\">Read full review \u2193<\/a>\n    <\/div>\n  <\/div>\n<\/div>\n\n<div class=\"affiliate-disclosure\"><p><em>This page contains affiliate links. A purchase through those links may earn Cameraegg a commission at no extra cost to you.<\/em><\/p><\/div>\n\n<div class=\"table-container\">\n  <table class=\"comparison-table\">\n    <thead><tr><th>Card<\/th><th>On the EOS R100<\/th><th>Class and speed<\/th><th>Buy<\/th><\/tr><\/thead>\n    <tbody>\n      <tr class=\"highlight-row\"><td><strong>SanDisk Extreme PRO SDXC UHS-I 128GB<\/strong><\/td><td>128GB UHS-I; about 2 hr 21 min of 4K<\/td><td>V30, U3; up to 200 MB\/s read, 90 MB\/s write<\/td><td><a href=\"https:\/\/www.amazon.com\/s?k=SanDisk+Extreme+PRO+SDXC+UHS-I+128GB&#038;tag=e6890-20&#038;linkCode=osi\" class=\"table-price-btn\" target=\"_blank\" rel=\"nofollow sponsored noopener\">Check price<\/a><\/td><\/tr>\n      <tr><td><strong>Lexar Professional 1066x SDXC UHS-I 64GB<\/strong><\/td><td>64GB UHS-I; about half that 4K time<\/td><td>V30, U3, Class 10; up to 160 MB\/s read, 120 MB\/s write<\/td><td><a href=\"https:\/\/www.amazon.com\/s?k=Lexar+Professional+1066x+SDXC+UHS-I+64GB&#038;tag=e6890-20&#038;linkCode=osi\" class=\"table-price-btn\" target=\"_blank\" rel=\"nofollow sponsored noopener\">Check price<\/a><\/td><\/tr>\n      <tr><td><strong>Kingston Canvas Go! Plus SDXC 64GB<\/strong><\/td><td>64GB UHS-I stills and 4K<\/td><td>V30, U3, Class 10; up to 200 MB\/s read, 100 MB\/s write<\/td><td><a href=\"https:\/\/www.amazon.com\/s?k=Kingston+Canvas+Go%21+Plus+SDXC+64GB&#038;tag=e6890-20&#038;linkCode=osi\" class=\"table-price-btn\" target=\"_blank\" rel=\"nofollow sponsored noopener\">Check price<\/a><\/td><\/tr>\n      <tr><td><strong>SanDisk Extreme PRO SDXC UHS-I 256GB<\/strong><\/td><td>256GB UHS-I for longer trips<\/td><td>V30, U3; up to 200 MB\/s read, 140 MB\/s write<\/td><td><a href=\"https:\/\/www.amazon.com\/s?k=SanDisk+Extreme+PRO+SDXC+UHS-I+256GB&#038;tag=e6890-20&#038;linkCode=osi\" class=\"table-price-btn\" target=\"_blank\" rel=\"nofollow sponsored noopener\">Check price<\/a><\/td><\/tr>\n    <\/tbody>\n  <\/table>\n<\/div>\n\n<h2>How We Picked<\/h2>\n<div class=\"how-we-picked\">\n<p>Three sourced facts: the R100 slot and the card class 4K requires, the bit rates and runtimes Canon published, and UHS-I cards whose write speed clears those rates.<\/p>\n<ul>\n  <li><strong>One UHS-I slot, and 4K wants UHS Speed Class 3.<\/strong> Canon EOS R100 advanced user guide: SD, SDHC, and SDXC, UHS-I supported. 4K UHD needs UHS Speed Class 3 or higher. Full HD 59.94\/50p and high-frame-rate HD need SD Speed Class 10 or higher. 4K time-lapse needs a read speed of 40 MB\/s or higher. Continuous shooting is 6.5 fps in One-Shot AF and 3.5 fps in Servo AF. On a UHS-I 32GB card, Canon lists about 100 or 97 JPEG, 6 RAW, 17 C-RAW, 6 RAW+JPEG, and 13 C-RAW+JPEG.<\/li>\n  <li><strong>4K is 120 Mbps, and 128GB holds about 2 hours 21 minutes.<\/strong> The same Canon guide: 4K UHD IPB is 120 Mbps (about 861 MB per minute), 35 minutes on 32GB and 2 hours 21 minutes on 128GB. Full HD 59.94p is 60 Mbps. 4K time-lapse ALL-I is 300 Mbps. Each movie clip stops at 29 minutes 59 seconds. 120 Mbps is 15 MB\/s. 300 Mbps is 37.5 MB\/s. V30 and U3 each mean a 30 MB\/s minimum.<\/li>\n  <li><strong>These UHS-I cards publish write speeds above that 37.5 MB\/s line.<\/strong> SanDisk Extreme PRO SDXC UHS-I specifications: 64GB and 128GB up to 200 MB\/s read and 90 MB\/s write; 256GB to 1TB up to 200 MB\/s read and 140 MB\/s write; V30 and U3. Lexar Professional 1066x SDXC UHS-I: up to 160 MB\/s read and 120 MB\/s write, Class 10, U3, V30. Kingston Canvas Go! Plus SD (SDG4): 64GB\u2013128GB up to 200 MB\/s read and 100 MB\/s write, Class 10, UHS-I, U3, V30.<\/li>\n<\/ul>\n<\/div>\n\n<h2>Detailed Reviews<\/h2>\n\n<div class=\"top-recommendation\" id=\"best-overall\" data-badge=\"best-overall\">\n  <div class=\"top-badge badge-best-overall\">\ud83c\udfc6 Best Overall<\/div>\n  <h3>SanDisk Extreme PRO SDXC UHS-I 128GB <a href=\"https:\/\/www.amazon.com\/s?k=SanDisk+Extreme+PRO+SDXC+UHS-I+128GB&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"title-amazon-btn\" rel=\"nofollow noopener\">View on Amazon<\/a> <a href=\"https:\/\/www.bhphotovideo.com\/c\/search?BI=8941&#038;KBID=10361&#038;SID=12345&#038;DFF=d50&#038;Ntt=SanDisk+Extreme+PRO+SDXC+UHS-I+128GB\" target=\"_blank\" class=\"title-bh-btn\" rel=\"nofollow noopener\">View on B&#038;H<\/a><\/h3>\n  <div class=\"product-highlights\">\n    <div class=\"highlight-item\"><span class=\"highlight-label\">Best For:<\/span> 4K and stills at the capacity Canon timed<\/div>\n    <div class=\"highlight-item\"><span class=\"highlight-label\">Key Feature:<\/span> UHS-I \u00b7 V30 \u00b7 U3 \u00b7 128GB \u00b7 90 MB\/s write<\/div>\n    <div class=\"highlight-item\"><span class=\"highlight-label\">Rating:<\/span> <span class=\"star-rating\">4.8 \/ 5.0 \u2605\u2605\u2605\u2605\u2605<\/span><\/div>\n  <\/div>\n  <table class=\"spec-table\">\n    <tr><th>Interface<\/th><td>UHS-I<\/td><\/tr>\n    <tr><th>Capacity<\/th><td>128GB<\/td><\/tr>\n    <tr><th>Speed class<\/th><td>V30, U3<\/td><\/tr>\n    <tr><th>Read \/ write<\/th><td>Up to 200 MB\/s read, 90 MB\/s write<\/td><\/tr>\n    <tr><th>Model<\/th><td>SDSDXXD-128G-GN4IN<\/td><\/tr>\n  <\/table>\n  <p><strong>Why it fits the EOS R100.<\/strong> The body cannot use UHS-II. This card is UHS-I, and V30 plus U3 is the class Canon asks for at 4K. A 120 Mbps 4K stream is 15 MB\/s, inside the 30 MB\/s V30 floor. The published 90 MB\/s write also clears 4K time-lapse at 300 Mbps (37.5 MB\/s), and the 200 MB\/s read rating clears Canon\u2019s 40 MB\/s read requirement for that mode. SanDisk notes that read speeds past the UHS-I 104 MB\/s bus need a compatible reader, so the 200 MB\/s figure shows up at the computer, while the camera stays on UHS-I. 128GB is the capacity in Canon\u2019s table: about 2 hours 21 minutes of 4K, or about 4 hours 43 minutes of Full HD 59.94p. Each clip still stops at 29 minutes 59 seconds.<\/p>\n  <p>Buy it as the card that stays in the R100. The RAW buffer is still about 6 frames on Canon\u2019s UHS-I test card, so a faster bus will not turn this body into a long RAW burst camera. Leave a UHS-II V90 card for a different camera.<\/p>\n  <p class=\"purchase-links\"><span class=\"amazon-region-btn\">Check Price on <a href=\"https:\/\/www.amazon.com\/s?k=SanDisk+Extreme+PRO+SDXC+UHS-I+128GB&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">Amazon US<\/a>, <a href=\"https:\/\/www.amazon.co.uk\/s?k=SanDisk+Extreme+PRO+SDXC+UHS-I+128GB&#038;tag=pctest07-21&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">UK<\/a>, <a href=\"https:\/\/www.amazon.ca\/s?k=SanDisk+Extreme+PRO+SDXC+UHS-I+128GB&#038;tag=pctestt-20&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">CA<\/a>, <a href=\"https:\/\/www.amazon.de\/s?k=SanDisk+Extreme+PRO+SDXC+UHS-I+128GB&#038;tag=67990-21&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">DE<\/a> \u2192<\/span> <a href=\"https:\/\/www.bhphotovideo.com\/c\/search?BI=8941&#038;KBID=10361&#038;SID=12345&#038;DFF=d50&#038;Ntt=SanDisk+Extreme+PRO+SDXC+UHS-I+128GB\" target=\"_blank\" class=\"purchase-link-bh\" rel=\"nofollow noopener\">Check Price on B&#038;H<\/a><\/p>\n<\/div>\n\n<div class=\"top-recommendation\" id=\"best-value\" data-badge=\"best-value\">\n  <div class=\"top-badge badge-best-value\">\ud83d\udc8e Best Value<\/div>\n  <h3>Lexar Professional 1066x SDXC UHS-I 64GB <a href=\"https:\/\/www.amazon.com\/s?k=Lexar+Professional+1066x+SDXC+UHS-I+64GB&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"title-amazon-btn\" rel=\"nofollow noopener\">View on Amazon<\/a> <a href=\"https:\/\/www.bhphotovideo.com\/c\/search?BI=8941&#038;KBID=10361&#038;SID=12345&#038;DFF=d50&#038;Ntt=Lexar+Professional+1066x+SDXC+UHS-I+64GB\" target=\"_blank\" class=\"title-bh-btn\" rel=\"nofollow noopener\">View on B&#038;H<\/a><\/h3>\n  <div class=\"product-highlights\">\n    <div class=\"highlight-item\"><span class=\"highlight-label\">Best For:<\/span> 4K on a smaller UHS-I card<\/div>\n    <div class=\"highlight-item\"><span class=\"highlight-label\">Key Feature:<\/span> UHS-I \u00b7 V30 \u00b7 U3 \u00b7 64GB \u00b7 120 MB\/s write<\/div>\n    <div class=\"highlight-item\"><span class=\"highlight-label\">Rating:<\/span> <span class=\"star-rating\">4.5 \/ 5.0 \u2605\u2605\u2605\u2605\u2606<\/span><\/div>\n  <\/div>\n  <table class=\"spec-table\">\n    <tr><th>Interface<\/th><td>UHS-I<\/td><\/tr>\n    <tr><th>Capacity<\/th><td>64GB<\/td><\/tr>\n    <tr><th>Speed class<\/th><td>Class 10, U3, V30<\/td><\/tr>\n    <tr><th>Read \/ write<\/th><td>Up to 160 MB\/s read, 120 MB\/s write<\/td><\/tr>\n  <\/table>\n  <p><strong>Why it fits the EOS R100.<\/strong> Lexar rates the Professional 1066x series at Class 10, U3, and V30, with write speeds up to 120 MB\/s. That is the same class the R100 needs for 4K, and 120 MB\/s is above both the 15 MB\/s 4K stream and the 37.5 MB\/s 4K time-lapse stream. 64GB is half of 128GB. Canon\u2019s 32GB 4K time is 35 minutes and the 128GB time is 2 hours 21 minutes, so 64GB lands near 70 minutes of 4K, enough for two 29-minute 59-second clips. In the camera the UHS-I bus is the limit; the extra read speed is for offload.<\/p>\n  <p>Buy it when one or two 4K clips and a few hundred stills are the day. Leave it when the shoot needs the full 128GB runtime.<\/p>\n  <p class=\"purchase-links\"><span class=\"amazon-region-btn\">Check Price on <a href=\"https:\/\/www.amazon.com\/s?k=Lexar+Professional+1066x+SDXC+UHS-I+64GB&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">Amazon US<\/a>, <a href=\"https:\/\/www.amazon.co.uk\/s?k=Lexar+Professional+1066x+SDXC+UHS-I+64GB&#038;tag=pctest07-21&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">UK<\/a>, <a href=\"https:\/\/www.amazon.ca\/s?k=Lexar+Professional+1066x+SDXC+UHS-I+64GB&#038;tag=pctestt-20&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">CA<\/a>, <a href=\"https:\/\/www.amazon.de\/s?k=Lexar+Professional+1066x+SDXC+UHS-I+64GB&#038;tag=67990-21&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">DE<\/a> \u2192<\/span> <a href=\"https:\/\/www.bhphotovideo.com\/c\/search?BI=8941&#038;KBID=10361&#038;SID=12345&#038;DFF=d50&#038;Ntt=Lexar+Professional+1066x+SDXC+UHS-I+64GB\" target=\"_blank\" class=\"purchase-link-bh\" rel=\"nofollow noopener\">Check Price on B&#038;H<\/a><\/p>\n<\/div>\n\n<div class=\"top-recommendation\" id=\"budget-pick\" data-badge=\"budget-pick\">\n  <div class=\"top-badge badge-budget\">\ud83d\udcb0 Budget Pick<\/div>\n  <h3>Kingston Canvas Go! Plus SDXC 64GB <a href=\"https:\/\/www.amazon.com\/s?k=Kingston+Canvas+Go%21+Plus+SDXC+64GB&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"title-amazon-btn\" rel=\"nofollow noopener\">View on Amazon<\/a> <a href=\"https:\/\/www.bhphotovideo.com\/c\/search?BI=8941&#038;KBID=10361&#038;SID=12345&#038;DFF=d50&#038;Ntt=Kingston+Canvas+Go%21+Plus+SDXC+64GB\" target=\"_blank\" class=\"title-bh-btn\" rel=\"nofollow noopener\">View on B&#038;H<\/a><\/h3>\n  <div class=\"product-highlights\">\n    <div class=\"highlight-item\"><span class=\"highlight-label\">Best For:<\/span> Stills and 4K without stepping up to 128GB<\/div>\n    <div class=\"highlight-item\"><span class=\"highlight-label\">Key Feature:<\/span> UHS-I \u00b7 V30 \u00b7 U3 \u00b7 64GB \u00b7 100 MB\/s write<\/div>\n    <div class=\"highlight-item\"><span class=\"highlight-label\">Rating:<\/span> <span class=\"star-rating\">4.3 \/ 5.0 \u2605\u2605\u2605\u2605\u2606<\/span><\/div>\n  <\/div>\n  <table class=\"spec-table\">\n    <tr><th>Interface<\/th><td>UHS-I<\/td><\/tr>\n    <tr><th>Capacity<\/th><td>64GB<\/td><\/tr>\n    <tr><th>Speed class<\/th><td>Class 10, U3, V30<\/td><\/tr>\n    <tr><th>Read \/ write<\/th><td>Up to 200 MB\/s read, 100 MB\/s write (64GB\u2013128GB)<\/td><\/tr>\n    <tr><th>Series<\/th><td>Canvas Go! Plus, SDG4<\/td><\/tr>\n  <\/table>\n  <p><strong>Why it fits the EOS R100.<\/strong> Kingston\u2019s current Canvas Go! Plus SD (SDG4) is Class 10, UHS-I, U3, and V30. At 64GB and 128GB the published write speed is 100 MB\/s, which covers 4K at 15 MB\/s and 4K time-lapse at 37.5 MB\/s. Class 10 also covers Full HD 59.94p and high-frame-rate HD, where Canon asks for SD Speed Class 10. The 64GB capacity is the same size class as the Lexar, with a lower published write speed. Kingston says full read performance needs its MobileLite Plus reader, so the 200 MB\/s read is an offload number.<\/p>\n  <p>Buy it as the spare UHS-I card, or as the only card when 64GB is enough. Leave a U1 or Class 10 card that is not U3 when the mode is 4K.<\/p>\n  <p class=\"purchase-links\"><span class=\"amazon-region-btn\">Check Price on <a href=\"https:\/\/www.amazon.com\/s?k=Kingston+Canvas+Go%21+Plus+SDXC+64GB&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">Amazon US<\/a>, <a href=\"https:\/\/www.amazon.co.uk\/s?k=Kingston+Canvas+Go%21+Plus+SDXC+64GB&#038;tag=pctest07-21&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">UK<\/a>, <a href=\"https:\/\/www.amazon.ca\/s?k=Kingston+Canvas+Go%21+Plus+SDXC+64GB&#038;tag=pctestt-20&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">CA<\/a>, <a href=\"https:\/\/www.amazon.de\/s?k=Kingston+Canvas+Go%21+Plus+SDXC+64GB&#038;tag=67990-21&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">DE<\/a> \u2192<\/span> <a href=\"https:\/\/www.bhphotovideo.com\/c\/search?BI=8941&#038;KBID=10361&#038;SID=12345&#038;DFF=d50&#038;Ntt=Kingston+Canvas+Go%21+Plus+SDXC+64GB\" target=\"_blank\" class=\"purchase-link-bh\" rel=\"nofollow noopener\">Check Price on B&#038;H<\/a><\/p>\n<\/div>\n\n<h2>If You Need Something Else<\/h2>\n<p>128GB matches the capacity in Canon\u2019s 4K table. A longer trip needs more of the same UHS-I V30 card, not a UHS-II card this body cannot speed up.<\/p>\n\n<div class=\"top-recommendation\" id=\"sandisk-256-skip\" data-badge=\"also-great\">\n  <div class=\"top-badge badge-also-great\">Also consider<\/div>\n  <h3>SanDisk Extreme PRO SDXC UHS-I 256GB <a href=\"https:\/\/www.amazon.com\/s?k=SanDisk+Extreme+PRO+SDXC+UHS-I+256GB&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"title-amazon-btn\" rel=\"nofollow noopener\">View on Amazon<\/a> <a href=\"https:\/\/www.bhphotovideo.com\/c\/search?BI=8941&#038;KBID=10361&#038;SID=12345&#038;DFF=d50&#038;Ntt=SanDisk+Extreme+PRO+SDXC+UHS-I+256GB\" target=\"_blank\" class=\"title-bh-btn\" rel=\"nofollow noopener\">View on B&#038;H<\/a><\/h3>\n  <table class=\"spec-table\">\n    <tr><th>Interface<\/th><td>UHS-I<\/td><\/tr>\n    <tr><th>Capacity<\/th><td>256GB<\/td><\/tr>\n    <tr><th>Speed class<\/th><td>V30, U3<\/td><\/tr>\n    <tr><th>Read \/ write<\/th><td>Up to 200 MB\/s read, 140 MB\/s write (256GB\u20131TB)<\/td><\/tr>\n  <\/table>\n  <p>SanDisk rates the 256GB through 1TB Extreme PRO UHS-I cards at up to 140 MB\/s write, above the 90 MB\/s figure on the 128GB card. 256GB is twice the 128GB capacity Canon timed at about 2 hours 21 minutes of 4K. The slot is still UHS-I, and each clip still ends at 29 minutes 59 seconds. Use this size when the day is several 4K clips plus RAW stills. A UHS-II card does not add speed in this camera.<\/p>\n  <p class=\"purchase-links\"><span class=\"amazon-region-btn\">Check Price on <a href=\"https:\/\/www.amazon.com\/s?k=SanDisk+Extreme+PRO+SDXC+UHS-I+256GB&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">Amazon US<\/a>, <a href=\"https:\/\/www.amazon.co.uk\/s?k=SanDisk+Extreme+PRO+SDXC+UHS-I+256GB&#038;tag=pctest07-21&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">UK<\/a>, <a href=\"https:\/\/www.amazon.ca\/s?k=SanDisk+Extreme+PRO+SDXC+UHS-I+256GB&#038;tag=pctestt-20&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">CA<\/a>, <a href=\"https:\/\/www.amazon.de\/s?k=SanDisk+Extreme+PRO+SDXC+UHS-I+256GB&#038;tag=67990-21&#038;linkCode=osi\" target=\"_blank\" rel=\"nofollow noopener\">DE<\/a> \u2192<\/span> <a href=\"https:\/\/www.bhphotovideo.com\/c\/search?BI=8941&#038;KBID=10361&#038;SID=12345&#038;DFF=d50&#038;Ntt=SanDisk+Extreme+PRO+SDXC+UHS-I+256GB\" target=\"_blank\" class=\"purchase-link-bh\" rel=\"nofollow noopener\">Check Price on B&#038;H<\/a><\/p>\n<\/div>\n\n<h2>Frequently Asked Questions<\/h2>\n<div class=\"faq-module\">\n  <div class=\"faq-item\"><h3>Why 4K on the R100 needs UHS Speed Class 3<\/h3><p>Canon\u2019s card table lists UHS Speed Class 3 or higher for 4K UHD at 23.98 or 25 fps. That mode is 120 Mbps, or 15 MB\/s. U3 and V30 both mean a 30 MB\/s minimum, which covers it. Full HD at 30 Mbps only needs SD Speed Class 6. High-frame-rate HD at 52 Mbps needs Class 10.<\/p><\/div>\n  <div class=\"faq-item\"><h3>Whether a UHS-II card is faster in the R100<\/h3><p>The advanced user guide lists UHS-I support and does not list UHS-II. A UHS-II card will mount and run at UHS-I speed. The V90 rating on that card is unused in this body.<\/p><\/div>\n  <div class=\"faq-item\"><h3>What a 128GB card holds at these bit rates<\/h3><p>Canon\u2019s table, approximate: 4K at 120 Mbps is 35 minutes on 32GB, 2 hours 21 minutes on 128GB, and 9 hours 27 minutes on 512GB. Full HD 59.94p at 60 Mbps is 1 hour 10 minutes on 32GB and 4 hours 43 minutes on 128GB. One clip still stops at 29 minutes 59 seconds. High-frame-rate clips stop at 7 minutes 29 seconds.<\/p><\/div>\n  <div class=\"faq-item\"><h3>Why the RAW burst stays near six frames<\/h3><p>Canon measured maximum burst on a UHS-I 32GB card that meets its test standard: about 6 RAW, 17 C-RAW, 6 RAW+JPEG, and 13 C-RAW+JPEG, at 6.5 fps in One-Shot AF. JPEG is about 97 to 100 frames. A faster UHS-I write speed can clear the buffer sooner. It does not change the 6.5 fps ceiling, and Servo AF is 3.5 fps.<\/p><\/div>\n  <div class=\"faq-item\"><h3>Whether V30 is enough for 4K time-lapse<\/h3><p>4K time-lapse is ALL-I at 300 Mbps, which is 37.5 MB\/s. V30\u2019s floor is 30 MB\/s, so the class rating alone sits under that stream. Canon also asks for a read speed of 40 MB\/s or higher. The cards here publish write speeds of 90 to 140 MB\/s and read speeds of 160 to 200 MB\/s, which cover both figures. In the camera, the UHS-I bus is the cap.<\/p><\/div>\n<\/div>\n\n<h2>Final Verdict<\/h2>\n<div class=\"conclusion-module verdict-box\">\n  <div class=\"verdict-picks\">\n    <div class=\"verdict-item\">\n      <span class=\"verdict-label\">\ud83c\udfc6 Best Overall:<\/span>\n      <div class=\"verdict-product\"><strong>SanDisk Extreme PRO SDXC UHS-I 128GB<\/strong> <span class=\"verdict-reason\">\u2013 UHS-I V30 U3 at the 128GB capacity in Canon\u2019s 4K table.<\/span><\/div>\n      <a href=\"https:\/\/www.amazon.com\/s?k=SanDisk+Extreme+PRO+SDXC+UHS-I+128GB&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"verdict-btn\" rel=\"nofollow noopener\">Buy Now<\/a>\n    <\/div>\n    <div class=\"verdict-item\">\n      <span class=\"verdict-label\">\ud83d\udc8e Best Value:<\/span>\n      <div class=\"verdict-product\"><strong>Lexar Professional 1066x SDXC UHS-I 64GB<\/strong> <span class=\"verdict-reason\">\u2013 the same class at 64GB, with a 120 MB\/s published write.<\/span><\/div>\n      <a href=\"https:\/\/www.amazon.com\/s?k=Lexar+Professional+1066x+SDXC+UHS-I+64GB&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"verdict-btn\" rel=\"nofollow noopener\">Buy Now<\/a>\n    <\/div>\n    <div class=\"verdict-item\">\n      <span class=\"verdict-label\">\ud83d\udcb0 Budget Pick:<\/span>\n      <div class=\"verdict-product\"><strong>Kingston Canvas Go! Plus SDXC 64GB<\/strong> <span class=\"verdict-reason\">\u2013 UHS-I V30 U3 at 64GB and 100 MB\/s write.<\/span><\/div>\n      <a href=\"https:\/\/www.amazon.com\/s?k=Kingston+Canvas+Go%21+Plus+SDXC+64GB&#038;tag=e6890-20&#038;linkCode=osi\" target=\"_blank\" class=\"verdict-btn\" rel=\"nofollow noopener\">Buy Now<\/a>\n    <\/div>\n  <\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>The EOS R100 has one UHS-I SD slot, and 4K needs UHS Speed Class 3. The SanDisk Extreme PRO SDXC UHS-I 128GB is the V30 card at the capacity Canon timed.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[6,25],"tags":[32],"class_list":["post-3513","post","type-post","status-publish","format-standard","hentry","category-canon","category-memory-card","tag-canon-eos-r100"],"_links":{"self":[{"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/posts\/3513","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/comments?post=3513"}],"version-history":[{"count":2,"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/posts\/3513\/revisions"}],"predecessor-version":[{"id":9974,"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/posts\/3513\/revisions\/9974"}],"wp:attachment":[{"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/media?parent=3513"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/categories?post=3513"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cameraegg.org\/camerareview\/wp-json\/wp\/v2\/tags?post=3513"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}