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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. 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.
Two sets of data were taken at 250 ISO and at 3200 ISO to see if there were relative performance differences with the different sized files (there weren’t any observable). Some of the data averages are rounded to the nearest ten so we don’t mistakenly imply that our precision is better than it actually is.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.
Our CFexpress Type B Card Reader comes with a Write-Protect Switch that protects against unintended file deletion and keeps your system from writing unwanted data files to your card. Smooth and efficient workflow is all that is needed in day to day activities of taking videos, transferring them and pictures too. What should be noted also is that the actual performance will also vary depending on the device that will be used. Don’t let the action go, snap it and record it. It never fails users and when you have it, then you are sure that everything you have planned will just go as planned UGREEN SD Card Reader USB 3.0 Card Hub Adapter 5Gbps Read 4 Cards Simultaneously
ProGrade Digital’s SD Dual-Slot USB 3.1, Gen. 2 Card Reader is compatible with both UHS-I/UHS-II. It also includes two 18-inch connection cables: one Type A to Type C and one Type C to Type C. 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 reader is supplied with a short USB Type-C to Type-C cable, and you'll need to use this rather than an older Type-A connection to ensure faster data transfer speeds. The reader utilises a USB 3.1 Gen 2 connection specification, meaning it can transfer at up to 10 gigabits per second. However, do the maths and even this isn't fast enough to achieve the claimed maximum transfer speeds of a CFexpress card. 10Gbps equates to 1250 Megabytes per second - some way short of the 1700MB/s claimed maximum read speed of the SanDisk Extreme Pro CFexpress card. Performance 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. With many current high-end cameras now utilizing both the CFexpress and SD card formats, it makes sense to get a card reader that also takes both standards. This offering from Prograde Digital is a high quality choice and an ideal match for today's mirrorless and DSLR cameras.
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