This metal Mobile rack can be installed into a 3.5 bay of your desktop PC and use two 2.5 SATA hard disks in the frame. Due to the Hot Swap function you can exchange the HDD during operation. Specification Fits into 3,5 bay For 2x 2.5 SATA HDD For SATA I or SATA II hard drives Data transfer rate up to 3 GB/s Hot Swap Optional HDD-fan (mounting holes on the bottom side of mobile rack) System requirement OS independent, no driver installation necessary PC with a free 3.5bay and two free SATA Ports Package content Mobile rack 2x SATA data cable, 2x SATA power cable Screws User manual Package Retail box