Model No.HKPD-BD-ROM Support BD disc reading and DVD, CD disc reading and writing;              Slim design and slot type of loading for better portability;                              USB 2.0 interface design for better generality in use；           PC USB power supply, no AC Adaptor needed； Colourful outer case design with black piano lacquer painting.     Interface: USB 2.0 Type of loading: Slot load Installation: External Buffer size: 2MB Size(LxWxD): 139x135x20 mm Weight: 300gPower supply Voltage DC5V+/-0.25V Power consumption: 1100mA Reading/Writing Speed BD-ROM 4X BD-RE 2X BD-R 4X DVD-RAM 5X/5X DVD+R 8X/8X DVD-R 8X/8X DVD+RW 6X/6X DVD-RW 4X/4X DVD-ROM 8X DVD-ROM 8X CD-R 24X/24X CD-RW 24X/24X