Sony BDX-S600U 6X Blu-Ray Slim External Drive Retail (Black) Drive Type: Slim External Blu-ray Writer Write: BD (SL/LTH): 6X; BD-R DL: 6X; BD-RE (SL/DL): 2X BD-R XL (TL): 4x; DVD+R/-R: 8X; DVD+RW/-RW: 8X/6X; DVD+R DL/-R DL: 6X; DVD-RAM: 5X; CD-R: 24X; CD-RW: 16X Read: BD (SL/DL): 6X; DVD-ROM (SL/DL): 8X/6X ; DVD+RW/-RW: 8X Interface: High Speed USB (USB 2.0) Port Drive Type: Slim External Blu-ray Writer Write: BD (SL/LTH): 6X; BD-R DL: 6X; BD-RE (SL/ DL): 2X BD-R XL (TL): 4x; DVD+R/-R: 8X; DVD+RW/-RW: 8X/6X; DVD+R DL/-R DL: 6X; DVD-RAM: 5X; CD-R: 24X; CD-RW: 16X Read: BD (SL/DL): 6X; DVD-ROM (SL/DL): 8X/6X ; DVD+RW/-RW: 8X Interface: High Speed USB (USB 2.0) Port Access Time: BD - 230 ms; DVD - 180 ms; CD - 190 ms Buffer Memory: 5.8MB Compatibility: Microsoft Windows XP/ Vista/ 7