Bradychan USB Hub 2.0 - 4 in 1 Adapter Portable Hub with 2 USB Port Card Reader Slot for Microsoft Surface Pro 2/ Pro 3 12 Inch Tablet (Pro 3 Hub) Compatible with Microsoft Surface 2 and Pro 2/Pro 3 tablet. This unit applies 2 USB 2.0 ports, 1 SD memory input, and 1 Micro SD input. Multi-function USB Hub 2.0