Drive Type: External Super Multi Blu-ray Rewriter Drive with LightScribe * Interface: USB2.0, Buffer Memory: 4 MB * Access Time:BD-ROM - 200ms; DVD-ROM - 170ms; CD-ROM - 160ms; DVD-RAM - 180ms * Data Transfer Rate: BD-ROM - 143.86 MB/s; DVD-ROM - 11.08 MB/s; CD-ROM - 3600 KB/s * Compatible with Windows XP, Windows Vista, Windows 7