This device is a USB card reader connected to the express card slot. While the read speed on these cards are acceptable, the write and erase speed is extremely slow. I've tried it with various SD and microSD cards. I find that the write and erase speed is approximately 20 to 30 times slower than the cube type USB card readers that connect to the USB2 ports. This device does not utilize the full write speed of your flash cards.
It is useful for copying pictures off SD cards quickly, but not the other way around. Don't expect good speed when copying MP3 or videos from your laptop to portable media players that use SD cards.
Guide created: 18/11/06 (updated 05/04/11)


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