100% brand new and high quality. Quantity: 2 Easy to install, no need any drivers, plug and paly. USB 3.0 high transfer rate. Apply to 12.7mm slim sata ODD. Support Windows XP / 2003 / Vista / 7, Linux , 10 OS and above system. It's ONLY a caddy case,NOT a burner drive, can NOT read or burn any CD/DVD rom. Specification: Type: External USB3.0 Enclosure Case For 12.7mm SATA CD DVD RW Burner Drive Size: 14.5cmX14.5cm Material:Plastic Colour: black USB 3.0 Cable Length: about 20cm External Interface: USB 3.0 Internal Interface: SATA Power supply: No external power supply Package Content: 2 x USB 3.0 Mobile External Case For 12.7mm SATA CD DVD -ROM -RE Drive 2 x Manual Only the above package content, other products are not included. Note: Light 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.