HornetTek X2-U3, JBOD, USB 3.0, SATA I/II, 3.5in, Dual Bay Hard Drive Enclosure Shielded USB 3.0 Cable Included - (HT-3210U3) Universal fitting for dual 3.5" SATAI/II Hard Disk Drives Back panel Power ON/OFF switch Back panel Fan ON/OFF switch OS independent, Driverless, Auto Configuration SATA I/II to USB 3.0 specification Supports JBOD Mode Only Operates at Super (5Gbps) or High (480Mbps) or Full (12Mbps) speed Hi-Quality Shielded USB 3.0 Cable Ensures Data Integrity and Speed