100% brand new and high qualityQuantity:1pcColor: SilverSize:140 x 135 x 17mm (LxWxH)Full compatible with USB 2.0 / USB 1.1.Power by USB， no external AC adapter needed.No enject button designed， Slot Loading.Features:5X Speed DVD-RAM Writing8X Speed DVD±R Writing4X Speed DVD±RW Writing4X Speed ±R (DL) Dual layer Writing24X Speed CD-R Writing24X Speed CD RW Writing8X Speed DVD-ROM Reading24X Speed CD-ROM ReadingCompatible with Mac OS 8.6 or more high， Built-in Apple BIOS， work perfectly with Apple Macbook， Mac， Mac mini， iMacSlot-in Loading， without eject button， must operate the eject by mouse.Powered by USB 2.0. Work with Both Laptop & Desktop， Play and play， don't need any driver program. Also Support Windows98/ SE /ME / 2000 / XP / Vista / Win 7/ Win 8