HLDS BU20N 9.5mm SATA Blu-ray/DVD BDRE DVDRW Rewriter Optical Disk Drive 707894-6C2 735600-001.HP Part Number: 707894-6C2HP Spare Part Number: 735600-001HLDS Model Number: BU20NSpecifications:Height 9.5mmFW BW20Type AMCK701Buffer size 2MBWrite Speed:- 2X BD-R- 2X BD-RE- 8X DVD-R- 8X DVD+R- 4X DVD-RW- 4X DVD+RW- 4X DVD-DL(R9)- 4X DVD+DL(R9)- 5X DVD-RAM- 16X CD-RW- 24X CD-RRead Speed:- 2X BD-ROM- 8X DVD-ROM- 24X CD-ROM