Kingwin Dual Bay USB 2.0 External Hard Drive Enclosure, DK-32U-S (Black/silver) Supports BIG & JBOD Up To 480 Mbps Data Transfer Rate In USB 2.0 Fan On/Off Function Supports Hot Plug & Play High Performance 50 x 50 mm Fan Supports BIG & JBOD Up To 480 Mbps Data Transfer Rate In USB 2.0 Fan On/Off Function Supports Hot Plug & Play High Performance 50 x 50 mm Fan Front LED For Power/H.D.D. Activity Applicable for PC, Notebook, and Mac RoHS Compliant