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OWC Mercury Elite Pro Dock: SD Card Slot Speed
Related: 2019 iMac 5K, 4K and 5K display, camera cards, hard drive, iMac, iMac 5K, Other World Computing, OWC Mercury Elite Pro, OWC Mercury Elite Pro Dock, RAID, SDXC camera storage card, storage, Thunderbolt
Configurations up to 32TB (2 X 16TB). MPG tested the 24TB model incorporating dual Toshiba 12TB MG07ACA12TE drives which are very high performance hard drives.
Test results: SD Slot
disktester run-sequential --xfer 128M --test-size 4G -i 5
The SD 4.0 card slot in the OWC Mercury Elite Pro Dock trounces the built-in slot on the 2019 iMac 5K, delivering 3X faster read speed. Read speed is by far the most important metric, for fast camera card downloads.
For writes the OWC Mercury Elite Pro Dock runs rings around the 2019 iMac 5K, offering 4X faster write speed.
If you’re looking for a fast SD card reader and need storage at the same time, the OWC Mercury Elite Pro Dock is a fantastic choice.
Vertical scale is MB/sec. Horizontal scale shows transfer size. RAID-0 used 64K stripe size; RAID-5 uses 16K stripe size (default, not configurable).