Temperature did not appear to affect performance – and this was tested – but the tests did not wait for the camera to cool down between each trial which would have been optimal. Instead, we just made sure the temps didn’t exceed 45C. The Lexar Professional CFexpress Type A & SD Dual-Slot USB 3.2 Gen 2 Type-C Card Reader is a highly portable and compact device designed for creative professionals who need to transfer high-res photos and videos while on the go. The reader is optimized for Lexar CFexpress Type A memory cards and SD media cards, making it easy to establish an efficient workflow when transferring high-res photo and video content.

The good news is that there are very few people who will use their cards more intensively than we did for these tests, and the cards very rarely got hot enough to affect performance. After shooting about 3,500 stills in a row, formatting the card after about every 300, we saw some performance degradation that may have been heat-related. This is likely an area that video shooters will be more concerned about. 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 The Exascend CFexpress Type A / SD Express Card Reader is a 2-in-1 card reader that is designed to meet the demands of professional photographers and videographers who require high-speed data transfers while on the go. This card reader features a dedicated CFexpress Type A card slot and a dedicated SDXC card slot with SD Express support, which eliminates the need for multiple card readers when working with different camera systems. The Sony MRW-G2 CFexpress Type A/SD Memory Card Reader is a professional-grade memory card reader that offers exceptional speed and versatility. Designed specifically for CFexpress Type A memory cards as well as SD/SDHC/SDXC card types, this card reader is built to handle the demands of high-resolution image files, 4K/8K videos, and other high-volume data.This is a device that has been designed in a unique manner to ensure that you are allowed to ingest, edit and even reach the extent of archiving any content that you have made in a creative manner. It is one of the greatest because it ensures that this is all done with the best known speeds of the content. The metal closure is one that is rugged hence ensuring durability and also longevity. We highly recommend this as the top best XQD card reader for 4K video workflow. Relative to one another, the cards in the same class as one another showed only about 10 percent variance in performance. There certainly is shown a different set of classes, though, when looking at the 128 GB and 256 GB cards versus the higher capacity models. Those smaller cards get a roughly 20 percent performance hit on average. So, with everything performing at a very, very high level, and little variation among them, factors like price and service weigh heavily.

In conducting the tests for the cards hooked up to a computer, we saw some very strange results, eventually figuring out that major differences would be introduced not only by using different card readers, but also even which port we chose to hook it up to on the computer, and also what sort of cord was used. These results retested, standardized on a Sonnet dual CFexpress card reader using a Thunderbolt 3 port and cord. The CFexpress standard, as interpreted by camera manufacturers, is still being established in implementation, so we can expect issues to crop up as new cameras are introduced and firmware needs to be adapted. There is no amount of testing that would solve the issue of a third party camera maker launching a camera with a slightly different protocol interpretation a year later, so all manufacturers are likely as vulnerable to this problem as all the others. At least the USB 3.1 Gen 2 (10 Gbps) interface is speedy, equating to a maximum transfer speed of 1250 megabytes per second. However, even this is still some way short of the 1700+MB/s read speed that the best CFexpress cards can manage. even this can't let the fastest CFexpress Type B cards run at max speed. 5 things to look for in a card reader 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. In conclusion, CFexpress Type A card readers have become increasingly important for professional photographers and videographers who require fast and reliable data transfer speeds. After reviewing several options, the ProGrade Digital CFexpress Type A & UHS-II SDXC Card Reader, Sony MRW-G2 CFexpress Type ASD Memory Card Reader, and Delkin Devices CFexpress Type A & UHS-II SDXC Memory Card Reader stood out as the top three choices.The cards that perform best as hard drives hooked up to the computer are the Sony cards. They’ll offload images and video faster than the others. Supports USB 3. 1 Gen2 speeds for smooth, efficient workflow from location to post production* | *USB 3. 1 Gen 2 permits interface speeds of up to 1250MB/s. Actual performance may vary based on memory card, host device, file attributes, usage conditions and other factors. 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. CFexpress Type A cards first appeared on the market when Sony launched the a7S III mirrorless camera. Sony has continued to add compatibility for this card type to their new camera models, including the Sony a7R V, Sony a1, Sony a7 IV and the Sony FX30, FX3, FX6 Cinema cameras. Other camera manufacturers are likely to follow suit, making CFexpress Type A cards a more prevalent choice in the industry. Overall, the ProGrade Digital CFexpress Type A & UHS-II SDXC Dual-Slot USB 3.2 Gen 2 Card Reader is an excellent choice for those looking for an affordable and high-speed memory card reader that can handle both CFexpress Type A and UHS-II SDXC memory cards. Its competitive price, sturdy build quality, and easy-to-use design make it a great option for professional photographers and videographers.

I tested the speed of the MRW-G2 using one of Sony’s TOUGH 160GB CFexpress Type-A cards, and was able to achieve speeds of around 570MB/s for write, and 757MB/s for reads. Considering the theoretical maximum read speed of those cars is 800MB/s, this falls into what I would consider to be “very good performance” terriroty. ProGrade Digital CFexpress Type A & UHS-II SDXC Dual-Slot Reader Speed wise, we could only extract a max video read speed of 223MB/s and 198MB/s write rate from our UHS-II SD card - not awful, but some way shot of some other readers we've tested. Image transfer performance is worse still, with 152MB/s read and 98MB/s write speeds being slower than average. The reader uses a 10 Gb/s USB 3.2 Gen 2 Type-C interface to provide fast transfer speeds of up to 1.25 GB/s, making it perfect for offloading large files, including high-res raw images, as well as 8K, 4K, Full HD, and 3D video. The reader is bus-powered, meaning that it doesn’t require an external power supply, making it easy to use on the go. Some readers use a USB cable that’s hard-wired to the reader body, which can be problematic if the cable ever gets damaged. This is a powerful G series cards that will ensure you get the fastest transfer speeds and also faster writing speeds. You will realize that his item is available in 4 capacities and you will be there to choose your favorite. They have been designed with the latest and developed controller that will enable 4k recording and avoid degradation.

The Delkin Devices CFexpress Type A & UHS-II SDXC Memory Card Reader is a powerful and versatile option for professional photographers and videographers who require a compact and lightweight solution that can handle demanding workflows. The reader features one CFexpress Type A card slot and one UHS-II SDXC card slot, making it capable of handling a wide range of memory cards. The card that clears the buffer the fastest is the SanDisk Extreme Pro 512GB, clearing it more than half a second faster than the other cards of its capacity. [Note the late entry of the Lexar Professional 512 GB card after this article was written upset this record, but both are fantastic at clearing cache.] 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. UHS-II SD cards are faster, and all the readers here are compatible. UHS-I card readers will read UHS-II cards, just slower.