Best Memory Card for Canon EOS R8 Mark II
The EOS R8 Mark II has one UHS-II SD slot, 40 fps for 73 RAW or 190 JPEG, and 6K-oversampled 4K60. The card that matches that bus is SanDisk Extreme PRO SDXC UHS-II V90 — up to 300 MB/s write and a 90 MB/s V90 floor. Check Extreme PRO UHS-II V90 on Amazon.
Our Top Picks at a Glance
Reviewed September 2026 · EOS R8 Mark II · single SD UHS-II · 40 fps · 73 RAW / 190 JPEG · 4K60 10-bit C-Log3 · 128 GB
UHS-II V90, 300 / 300 MB/s, 90 MB/s floor. Matches 40 fps RAW and 4K60 on one slot.
Check Price at Amazon Read full review ↓Same V90 class. 300 / 260 MB/s. Alternate V90 when Extreme PRO is the expensive row.
Check Price at Amazon Read full review ↓UHS-II V60, 280 / 210 MB/s on 64–128 GB. 4K still sits inside V60. 40 fps RAW prefers V90.
Check Price at Amazon Read full review ↓This page contains affiliate links. A purchase through those links may earn Cameraegg a commission at no extra cost to you.
| Card | Bus / class | Rated speed | Mark II job | Buy |
|---|---|---|---|---|
| SanDisk Extreme PRO UHS-II | UHS-II V90 | 300 / 300 MB/s · 90 MB/s min | 40 fps 73 RAW + 4K60 on one slot | Check price |
| Lexar 2000x GOLD | UHS-II V90 | 300 / 260 MB/s | Same V90 row | Check price |
| Lexar 1800x GOLD | UHS-II V60 | 280 / 210 MB/s (64–128 GB) | 4K inside V60; burst prefers V90 | Check price |
| SanDisk Extreme PRO UHS-I | UHS-I V30 | UHS-I bus | Records, but not this slot’s bus | Check price |
How We Picked
Three sourced facts: one UHS-II slot, a 73-RAW buffer at 40 fps, and V90’s published 90 MB/s floor.
- Weigh the slot, then the buffer. B&H 7503C002 : single SD/SDHC/SDXC slot, UHS-II. Continuous shooting up to 40 fps for 73 RAW or 190 JPEG. Pre-capture: up to 20 frames in half a second. Internal video: XF-HEVC S 4:2:2 10-bit UHD 4K up to 59.94 fps, Full HD to 180 fps, Canon Log 3. One card. There is no overflow slot.
- Match V90 to a UHS-II body. SanDisk Extreme PRO UHS-II V90 : up to 300 MB/s read and write, 90 MB/s minimum sustained write, V90 / U3, 64–512 GB. V90’s floor is 90 MB/s. That is the class you buy when the slot is UHS-II and the burst is 73 RAW.
- Size 128 GB for one slot. 4K60 10-bit and 40 fps RAW share the same side door. 32 GB is tight for that mix. 128 GB is the travel size on a body that also does 190 JPEG in one burst.
Detailed Reviews
SanDisk Extreme PRO SDXC UHS-II V90 View on Amazon View on B&H
| SKU family | SDSDXDM — SanDisk Extreme PRO UHS-II V90 |
|---|---|
| Class | UHS-II · U3 · V90 (90 MB/s sustained) |
| Peak | Up to 300 MB/s read and 300 MB/s write |
| Capacity | Prefer 128 GB. 64 / 256 / 512 GB exist. |
| Body job | B&H: UHS-II slot · 73 RAW / 190 JPEG at 40 fps · 4K60 |
Why it fits the R8 Mark II. The slot is UHS-II. The buffer is 73 RAW. 4K60 10-bit shares that card. Extreme PRO V90 is SanDisk’s current UHS-II card with a published 90 MB/s floor.
Check Price on Amazon US, UK, CA, DE → Check Price on B&H
Lexar Professional 2000x SDXC UHS-II GOLD View on Amazon View on B&H
| SKU family | Professional 2000x GOLD — Lexar |
|---|---|
| Class | UHS-II · U3 · V90 |
| Peak | Up to 300 MB/s read · up to 260 MB/s write |
| Capacities | Lexar: 64 / 128 / 256 / 512 GB |
Why it is Value. Lexar’s 2000x GOLD sheet is also V90 UHS-II. You stay on the same video class as Extreme PRO. The write peak is 260 MB/s instead of 300. Full speed still wants a UHS-II reader — both brands say that. 128 GB is still the one-slot size.
Check Price on Amazon US, UK, CA, DE → Check Price on B&H
Lexar Professional 1800x SDXC UHS-II GOLD View on Amazon View on B&H
| SKU family | Professional 1800x GOLD — Lexar |
|---|---|
| Class | UHS-II · U3 · V60 |
| Peak (64–128 GB) | Up to 280 MB/s read · up to 210 MB/s write |
| Peak (256 GB–1 TB) | 280 / 205 MB/s |
Why it is Budget. V60 guarantees 60 MB/s. 4K60 can live there. The reason this body wants V90 is the 40 fps / 73 RAW buffer on one UHS-II slot. Take 1800x GOLD when the day is 4K30 and stills. Step to V90 when pre-capture and 40 fps share the card.
Check Price on Amazon US, UK, CA, DE → Check Price on B&H
If You Need Something Else
A UHS-I V30 card still records. It does not match the UHS-II row B&H published for this body.
SanDisk Extreme PRO UHS-I V30 View on Amazon View on B&H
| Bus | UHS-I · V30 |
|---|---|
| This body | B&H: single SD slot, UHS-II |
| Use | Fine in a UHS-I camera. Wrong bus for 40 fps RAW here. |
Keep a UHS-I Extreme PRO in another body. Put a UHS-II V90 card in this side door with a spare LP-E17 in the bag.
Check Price on Amazon US, UK, CA, DE → Check Price on B&H
Frequently Asked Questions
Why V90 UHS-II on this body
B&H lists a UHS-II slot, 73 RAW at 40 fps, and 4K60. SanDisk publishes V90 at a 90 MB/s floor.
Whether 73 RAW requires V90
73 RAW is a buffer length B&H publishes. V90 is the UHS-II class with a 90 MB/s floor. A slower UHS-I card still records; it is the wrong bus for this slot.
Why 128 GB instead of 32 GB
One slot. 4K60 10-bit and 40 fps RAW share it. 190 JPEG in a burst already eats a compact card. 128 GB is the travel size.
Whether UHS-I Extreme PRO is enough
That SKU is a UHS-I V30 card. This camera’s slot is UHS-II. Save UHS-I Extreme PRO for a UHS-I body.
What 4K60 10-bit asks of the card
B&H: XF-HEVC S 4:2:2 10-bit UHD 4K up to 59.94 fps, Canon Log 3. V60 can hold 4K. V90 is the pick when that movie row shares the card with 40 fps RAW.
Final Verdict
For the EOS R8 Mark II, buy SanDisk Extreme PRO UHS-II V90 in 128 GB. Take Lexar 2000x GOLD when the class is still V90. Take 1800x GOLD V60 when the day is not 40 fps RAW. Leave UHS-I cards in UHS-I cameras.
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