SanDisk Extreme PRO CFexpress Card Reader USB-C USB 3.1 Gen2 compatible with CFexpress Type B format

Product Information

We tested using repeated real-world transfers of a large folder of image files (multiple small files will always take longer to copy/paste than a single video of the same total file size), as well as a single large 4K video file, to determine the maximum possible real-world sustained transfer speeds you're likely to achieve. Finally, to test theoretical maximum possible transfer speeds of the card, we used CrystalDiskMark's storage benchmarking software, specifically the sequential read/write setting.

Multi-card readers, as you might deduce from the name, are card readers that can accommodate a range of different memory card formats. Typically, these will support SD memory and CFexpress, and sometimes microSD and XQD formats as well. The ProGrade Digital CFexpress Type A & UHS-II SDXC Card Reader offers exceptional performance, reliability, and convenience with its dual slots, compatibility with various cards, and rugged design. The Sony MRW-G2 CFexpress Type ASD Memory Card Reader delivers lightning-fast data transfer speeds and is ideal for professional photographers and videographers. Lastly, the Delkin Devices CFexpress Type A & UHS-II SDXC Memory Card Reader is a compact and portable reader that is designed to handle high-performance industry demands, making it perfect for on-the-go professionals. You have dealt with many items and majority might have even failed. What we are bringing you now is one item that has been upgraded from its first make. This is a high grade professional item that has been made for photographers so that they never miss an action when they are taking their pictures and even videos. It is a plug and play item that does not need installation. Sony MRW-E90/BC2 XQD USB 3.0 Reader XQD is a memory card format that was developed earlier this decade as a successor to CompactFlash cards. XQD cards are designed for professional uses, such as recording video or shooting sequences of images in your camera’s burst mode. Ultimately, the choice of a CFexpress Type A card reader will depend on individual needs and preferences, but these three options are definitely worth considering.Delkin’s CFexpress card reader is one of the best mid-range options and uses USB 3.2 Gen 2 Type C technology for fast data transfers. The ProGrade Digital CFexpress Type A & UHS-II SDXC Dual-Slot USB 3.2 Gen 2 Card Reader is an affordable and high-speed memory card reader that is designed to work with both CFexpress Type A and UHS-II SDXC memory cards. With a maximum data transfer rate of up to 1.25 GB/s or 1250 MB/s, this card reader takes advantage of the 10 Gb/s USB 3.2 Gen 2 bus, which is even faster than the maximum speed of CFexpress Type A memory cards.

Tests were limited to two R5 bodies and one sample each of all of the cards, except the Delkin, where we were able to get an early copy of the 512 GB version with the new firmware. Both Delkin cards performed similarly. Regarding the low sample sizes, the consistency between bodies makes me confident they aren’t introducing bias, but an anomalous performer among the cards would definitely goof up the results. If you want the most number of shots in 30 seconds, you’ll have the Angelbird 660GB XT. But it’s best by only 1 picture out of 337, and it has an odd behavior of causing camera startup to take 4 more seconds than any other card. This will be a deal-breaker for some.It has to be said that the CFexpress format is a leap forward. The cards are all so fast that the difference between the top performer in clearing a full buffer and the card that came in second from last is just 1.5 seconds. The buffer is that on-board, super-fast memory that fills up, and then you’re just left with the raw speed of your memory card, chewing through what the buffer can upload to it.