Features: 1.No need to install drivers, portable DVD writer support plug and play, which also supports higher performance. 2.External optical drive enables to be suitable for desktop and laptop computers with USB ports. 3.Compatible for Windows XP / 2003 / for Windows 8 / Vista / 7 / 8.1 /10 / for Linux / for OS X10 system. 4.Optimized circuit helps optical drive energy saving with low power consumption, no external power supply required. 5.Ultra-thin and ultra-light USB DVD writer adopts classic design, and it is easy to carry. specification:Item Type: Optical drive Interface Type: USB2.0 Disc Size: 12cm, 8cm Operating System: For WindowsXP/2003/ for Windows8/ Vista / 7/8.1/10 / for Linux / for OS X 10system Working Model: DVD+R=8X (read) DVD-R=8X (read) DVD+Re-Writable=8X (read) DVD-Re-Writable=6X (read ) DVD+R9 Dual Layer=6X (double layer 8.5GB disc reading ) DVD-R9 Dual Layer=6X (double-layer 8.5GB disc reading ) DVD-RAM=5X (100,000 times rewritable disc read and write) Compact Disk-R=24X (read and write) Compact Disk-Re-Writable=24X (read and write) PackageList:1 x USB Data Cable1 x Power Supply Wire1 x User Manual1 x Optical Drive NoteOne of the square ports is a USB data cable, which must be connected. The round interface is the USB power supply cable, which is used when the power supply is insufficient, and it does not matter if it is usually connected.