Fits all 3.5 inch SATA hard drives in a front-accessible 5.25 inch PC drive bay without capacity limitations; Supports SATA III with data transfer rates of up to 6 Gbps. Tool-free mounting process, just lock your 3.5inch hard drive in, mount in your 5.25inch CD/DVD drive bay, and connect through SATA interface. Automatically detected under XP / Vista / 7/8 / 8.1 / 10; Supports hot swapping: plug and play while the PC runs without slowing down or corrupting files. stainless steel construction for superior heat dissipation. The on/off button on the front of the unit allows you to switch between connection and sleep mode. Colour: as shown Material: metal + plastic Package Contents: 2 x CD-ROM space 3.5inch SATA HDD mobile rack 2 x 8 screw Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.