IceLabs All-in-One Card Reader and 3-Port USB 2.0 Hub: * Plug and play installation * USB 2.0 male type-A connector * 3 USB 2.0 ports and 4 memory card slots * Compatible with both Windows and Mac OS * 4 card slots for SD/SDHC/MMC, MS/MS Pro Duo, M2 and microSD memory cards * Can be powered by bus or AC power (AC adapter not included)