All-in-1 Blue USB Memory Card Reader for Secure Digital: Minisd (With Adapter), Microsd/transflash (With Adapter), Compact Flash: Cf I, Cf Ii, Cf Ultra Ii, Microdrive, Xd Picture Cards, Memory Stick: Memory Stick, Memory Stick Pro, Memory Stick Duo, Multimedia Card: MMC I, MMC Ii, Rs-mmc, Hs-mmc

My MacBook would not recognize this unit. I contacted the supplier and they offered to exchange it. Not worth the time and postage. Spend a little more and get something that works. Buy All-in-1 Blue USB Memory Card Reader for Secure Digital: Minisd (With Adapter), Microsd/transflash (With Adapter), Compact Flash: Cf I, Cf Ii, Cf Ultra Ii, Microdrive, Xd Picture Cards, Memory Stick: Memory Stick, Memory Stick Pro, Memory Stick Duo, Multimedia Card: MMC I, MMC Ii, Rs-mmc, Hs-mmc!