Dell DH-6E2S DH-6E2S18C Inspiron Precision Studio XPS Vostro Alienware Desktop Series Blu-Ray DVD Multi Recorder RW 8X SATA Optical Drive 3TD2H 03TD2H CN-03TD2H.Dell Model Number: DH-6E2S DH-6E2S18CDell Part Number: 3TD2H 03TD2H CN-03TD2HCompatible Models: Dell Inspiron 545 545s 546 546s 560 560s 580 580s, Precision Workstation T1500, Studio 7100, XPS 8000 8100 430, Vostro 220 220s 420 430, Alienware Area 51 ALX Aurora Desktop Series