USB 2.0 3 ports HUBCard Type: Support(without adapter):Â --SD, SDHC, MMC, MMCplus, MS, MS Pro, MS Pro Duo, CF, M2, microSD, microSDHCCard Type: Support(with adapter):Â --miniSD, miniSDHC. RS-MMC, MMC mobile, MMC microHot swapped and Plug & PlayCompact & Modern designBuilt in USB cableOver current ProtectionLEDs allow for easy status monitoringSelf Powered (also available: optional power port)