Hornettek  HD-3210U2S X2 USB 2.0 3.5-Inch Dual Bay External Enclosure with Built-in Cooling Fan Universal fitting for 3.5" SATA I/II HDD Hot swappable plug and play 3 piece design, top and bottom plastic, aluminum body Vertical Stand LED Power Switch/ LED Status Indicator Operates at 480Mbps (USB speed) Back panel Power ON/OFF switch Supports the maximum capacity 3.5" SATA I/II HDD up to date