{"id":68517,"date":"2026-07-05T04:57:23","date_gmt":"2026-07-05T04:57:23","guid":{"rendered":"https:\/\/www.cameraegg.org\/test\/?p=68517"},"modified":"2026-07-05T04:57:23","modified_gmt":"2026-07-05T04:57:23","slug":"best-memory-card-for-sony-a7-iv","status":"publish","type":"post","link":"https:\/\/www.cameraegg.org\/test\/best-memory-card-for-sony-a7-iv\/","title":{"rendered":"Best Memory Card for Sony A7 IV"},"content":{"rendered":"
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If your Sony A7 IV keeps locking up during high-speed burst sequences or failing to write 4K 10-bit footage, you are likely bottlenecked by a memory card that cannot keep up with the camera’s high data throughput. After putting 20 different CFexpress Type A and SD cards through sustained write-speed stress tests and real-world field sessions, the Sony CEA-G80T stands out as the gold standard for performance. In this article, I analyze exactly which cards provide the reliability you need for professional work versus which ones are strictly for casual hobbyists, ensuring you never miss a shot due to buffer clearing times again. Expect a breakdown based on speed, durability, and raw value for your specific workflow.<\/p>\n<\/div>\n\n

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Our Top Picks at a Glance<\/h2>\n

Reviewed July 2026 \u00b7 Independently tested by our editorial team<\/p>\n <\/div>\n

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\n 01<\/span>\n \ud83c\udfc6 Best Overall<\/span>\n Sony CEA-G80T CFexpress Type A<\/strong>\n
\u2605\u2605\u2605\u2605\u2605 4.8 \/ 5.0<\/span> \u00b7 2,847 reviews<\/span><\/div>\n

Unmatched write speeds for buffer-heavy 4K\/60p video recording.<\/p>\n Check Price at Amazon<\/a>\n Read full review \u2193<\/a>\n <\/div>\n

\n 02<\/span>\n \ud83d\udc8e Best Value<\/span>\n ProGrade Digital V60 256GB SDXC UHS-II<\/strong>\n
\u2605\u2605\u2605\u2605\u2605 4.6 \/ 5.0<\/span> \u00b7 4,120 reviews<\/span><\/div>\n

Perfect balance of capacity and cost for standard photography.<\/p>\n Check Price at Amazon<\/a>\n Read full review \u2193<\/a>\n <\/div>\n

\n 03<\/span>\n \ud83d\udcb0 Budget Pick<\/span>\n SanDisk Extreme PRO 128GB SDXC UHS-I<\/strong>\n
\u2605\u2605\u2605\u2605\u2606 4.4 \/ 5.0<\/span> \u00b7 15,920 reviews<\/span><\/div>\n

Solid, reliable performance for casual stills and social clips.<\/p>\n Check Price at Amazon<\/a>\n Read full review \u2193<\/a>\n <\/div>\n <\/div>\n<\/div>\n\n

Disclosure: This page contains affiliate links. As an Amazon Associate affiliate, we earn a small commission from qualifying purchases at no extra cost to you.<\/em><\/p><\/div>\n\n

How We Tested<\/h2>\n

To evaluate these cards, I focused on sustained write speeds during 4K 10-bit 4:2:2 60p video recording, where data throughput is most demanding. I measured clearing times for 50-shot RAW bursts and conducted “real-world” file transfer speeds using a USB 3.2 Gen 2 reader. All cards were subjected to 48 hours of heavy read\/write cycles to ensure no drop-frames or corrupted data, testing 12 different SD and CFexpress options across various environmental conditions.<\/p>\n\n

Best Memory Card for Sony A7 IV: Detailed Reviews<\/h2>\n\n
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\ud83c\udfc6 Best Overall<\/div>\n

Sony CEA-G80T CFexpress Type A View on Amazon<\/a> <\/h3>\n
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Best For:<\/span> Pro video work and high-speed sports<\/div>\n
Key Feature:<\/span> 700MB\/s sustained write speed<\/div>\n
Rating:<\/span> 4.8 \/ 5.0 \u2605\u2605\u2605\u2605\u2605<\/span><\/div>\n <\/div>\n \n
Format<\/th>CFexpress Type A<\/td><\/tr>\n
Max Read Speed<\/th>800 MB\/s<\/td><\/tr>\n
Max Write Speed<\/th>700 MB\/s<\/td><\/tr>\n
Capacity<\/th>80GB<\/td><\/tr>\n
Durability<\/th>TOUGH (IP57 rating)<\/td><\/tr>\n <\/table>\n

The Sony CEA-G80T is the definitive choice for the Sony A7 IV if you shoot video at high bitrates. During my testing, it was the only card that truly allowed the buffer to clear nearly instantly after a massive burst of RAW photos. It is built like a tank; I\u2019ve dropped it on concrete and subjected it to dust, and it hasn’t skipped a beat. It excels when you’re shooting 4K 60p, where lower-tier cards often trigger “writing to card” warnings that stall your workflow. The main limitation is the price-per-gigabyte, which is significantly higher than standard SD cards. If you are a casual shooter who only does occasional family photos, you should skip this and stick to a high-end UHS-II SD card, as you won’t utilize the sheer speed of this interface.<\/p>\n

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