Dell Precision M6400 M6500 SATA 2X Blu-Ray Burner BD-RE Recorder 0N385M N385M 0UJ232A UJ232A 0R644M R644MCompatible Models:DELL Precision M4400 DELL Precision M6400Dell Latitude E6400Dell Latitude E6500CD Read Max.24XWrite CD-R Max.16XWrite CD-RW Max.10XDVD Read Max. 8X/6X (DVD-RAM 5x)Write DVD+/-R Max.8XWrite DVD-RAM Max.5XWrite DVD+RW Max.4XWrite DVD-RW Max.4XBD Read BD-ROM Max. 2XWrite BD-R Single Layer Max. 2XWrite BD-R Dual Layer 1XWrite BD-RE Single Layer Max. 2XWrite BD-RE Dual Layer 1X9.5mm internal slim BD-RE Drive.Tray type.Serial ATA Interface (SATA) model.Supports Buffer Under Run Free Recording. Plug & Play