BROWAY USB 3.0 Internal 3.5" Multi Card Reader/Writer Supports the latest operating systems Windows 7/8 32/64 bit USB 3.0 interface with USB 3.0 port/ Backward compatible to USB 2.0 Maximum of 64GB capacity with 5Gbps transmission rate Supports 5 memory cards for transfers and exchanges at the same time Steel case (4 x 3.8 x 1) 6 available slots - Plug and play, hot-swapping