Memory Cards for the Fujifilm GFX 50S II: Which Type to Buy

The Fujifilm GFX 50S II records to SD cards, so the best choice is a reputable UHS-II SDXC card with a V60 or V90 rating and enough capacity to hold large medium-format RAW files. Fast write speed keeps the buffer clearing, and a well-known brand reduces the risk of data loss on important shoots. Always confirm the card type against Fujifilm’s official specifications for your camera.

What the camera needs

The GFX 50S II is a medium-format mirrorless camera with a 51.4-megapixel sensor, which produces large files. Uncompressed RAW and high-quality JPEG frames add up quickly during a session. The camera uses SD memory cards, and UHS-II cards offer the fastest transfer speeds that the SD standard supports for supported slots. Check your camera’s manual and Fujifilm’s support pages to confirm slot details and recommended card classes before you buy.

Because the files are big, the main bottleneck is how quickly the card accepts data after the buffer fills. A slow card does not damage anything, but it forces you to wait while the camera writes, which can cost you moments during portraits or events.

Understanding the speed labels

• UHS-II: Indicated by a second row of pins on the back of the card. It enables much faster transfer than UHS-I.
• V60 / V90: Video speed classes that guarantee minimum sustained write speed. Higher numbers suit demanding video and heavy stills.
• Read versus write speed: Read speed affects offloading; write speed affects shooting. Manufacturers advertise the faster read number, so look for the write speed too.
• SDXC capacity: Cards from 64 GB up to 2 TB are SDXC. Sizes you should consider depend on your shooting style.

Capacity and workflow planning

Medium-format files fill cards faster than many people expect. For casual shooting, a 128 GB card gives breathing room, while professionals often prefer 256 GB or larger for studio or event days. Using multiple smaller cards instead of one huge one also limits risk: if a card fails, you lose less. If your camera has two card slots, set up one for backup recording, so every frame is saved twice.

Card comparison for this camera

Reliability, counterfeits, and care

Counterfeit memory cards are a real problem on online marketplaces. Buy from reputable sellers or the manufacturer’s official store, and test new cards by writing and reading a full card of data before a paid shoot. Format cards in the camera, not on a computer, so the file system matches what the camera expects. Do not remove a card while the camera is writing, and keep spare cards in a protective case away from moisture and static.

When you shop, look for well-known names with long histories in professional photography. A search for UHS-II V90 SD cards will show current options, and a matching UHS-II SD card reader makes offloading much faster. Pay attention to the product listing to confirm that the seller is authorized.

Common mistakes to avoid

Do not assume any fast card will deliver its advertised speed in every device. Another mistake is buying a high-capacity card and trusting it as the only copy of important work. Keep at least two copies of each shoot until you have verified them on a computer. Also avoid reusing a card across several cameras without reformatting, because file structure mismatches can cause errors. Finally, keep the camera firmware updated, since updates sometimes improve card compatibility and stability.

Using two card slots and a smart shooting routine

If your GFX 50S II setup uses both card slots, decide how you want them to work. Writing the same files to both cards in parallel gives you instant redundancy, which is valuable for weddings, commissions, and travel. The trade-off is that the camera will write at the pace of the slower card, so matching both cards in speed class avoids unnecessary delays. Another approach is to record RAW to one card and JPEG to the other, which gives quick previews for clients while preserving full editing latitude.

Build a routine around the cards. Label each card with a number, keep unused cards in a case marked as empty, and move shot cards into a separate pouch the moment you swap them. Do not delete images in the camera mid-shoot; delete only after you have copied everything to at least two places. At the end of the day, copy each card to a computer and a second drive before reformatting it, and keep the originals until the images are safely backed up.

Finally, consider how card choice affects your computer workflow. Medium-format RAW files can take a while to import, and a fast UHS-II reader with a modern computer port shortens that wait. If your laptop has only one port, a compact hub may be necessary, but check that it supports the speed you expect. Spending a little time on this chain saves hours over a year of shooting.

Frequently asked questions

Does the GFX 50S II need UHS-II cards?

UHS-II is recommended for the best performance with large files, but UHS-I cards generally work, just with slower write speeds. Verify details in the camera’s manual.

Is V90 necessary for photos?

Not necessarily. V60 is often enough for stills, while V90 helps if you shoot long bursts or demanding video.

How many photos fit on a card?

It depends on the file format, compression, and scene detail. As a rule of thumb, medium-format RAW files are large, so plan on fewer frames per gigabyte than you would with smaller sensors.