KINGWIN KF-253-BK 2.5&3.5 Multi-Function Hot Swap Rack w/ USB 3.0 Hub Specifications: Suitable hard disk type: 2.5 SATA x1 & 3.5 SATA x 1 Interface: SATA III (6.0 Gbps) USB: 3.0 Color: Black Key Lock: Yes Hot swap: Yes OS: Windows 98/ME/2000/XP/Vista/7/Sever 2008 Mac 10.2 or above Dimension: 198 x 148 x 42 (mm) 7 3/4 x 5 13/16 x 1 5/8 (in) Weight: 500g / 1.1 lbs Operation Temperature: 0 - 55 Degrees C