Replacement SATA CD DVD Drive Burner Writer for HL-DT-ST BDDVDRW CT40N, TSSTcorp BDDVDW SN-506BB Read Speed: BD: 6x, DVD: 8x, CD: 24x. Write Speed: DVD-R: 8x max. DVD+R: 8x max. DVD-RW: 6x max. DVD+RW: 8x max. DVD-R DL: 6x max. DVD+R9: 6x max. DVD-RAM: 5x max. CD-R: 24x max. CD-RW: 24x max. Mechanism & Interface : Tray Load & S-ATA Compatibility: MultiRead, PC2001, Windows XP, Windows Vista , Windows 7, Windows 8, OS NOTE THAT : 1. Our optical drive just is Blu-ray drive WITHOUT any original accessories( faceplate,mounting frames, hooks, brackets) 2. If you replace your old optical drive by yourself, you just need to remove your old optical drive's accessories with screwdriver, then install them on our optical drive, then you can use it. 3. We match one manual in package box for your reference, it is so easy to operate