Benq CD-RW 52x32x52 IDE Int Bulk Black 1pk. CD write speed: 52 x, CD rewrite speed: 32 x. CD read speed: 52 x. Drive device, buffer size: 2 MB, Interface: EIDE (ATAPI). Dimensions (WxDxH): 146 x 42 x 198 mm, Height: 80 mm. Compatible operating systems: Windows95, "98/ ME / NT 4.0/ 2000/ XP