A:AnswerYes, it does. That was one of the reasons I liked it. My cameras take 2 different cards and my phone a 3rd card. I'm very happy with the purchase.
A:AnswerThe pictures should stay on the device after they're downloaded so you can keep the SD card as a kind of backup including the files on your computer. I was able to actually delete some pics on the SD card with the device connected to the USB port. it may be that a "MOVE" would erase the SD content but a copy should leave the original pics as is.
A:AnswerThe first slot supports your Micro SD, T-FLASH, Micro SDXC and Micro SDHC cards, and the second slot fits your SD, SDHC, SDXC and Mini-SD cards