Faster delivery: It usually takes about 3-7 days to deliver from United States/Canada/China warehouse. ADVANCED USB3.0 TECHNOLOGY: Our CD/DVD Drive is equipped with USB 3.0 high speed interface, bringing you faster data transmission speed and stable performance with strong fault tolerance. USB3.0 transmission standard,backward compatible with USB2.0, data transmission speed stability, up to a maximum of 5Gbps. HIGH SPEED: Adopted unique intelligent burning technology, this CD-RW drive supported DVD+R, DVD-R, CD-ROM, DVD-ROM, CD-R, CD-RW. System:windows XP/Vista/7/8.1/10,Mac OS 10 systems Supports most Ultrabook,Netbooks,MacBook,iMac,Desktops Specification: Supported formats: DVD-ROM, DVD-video,CD-R/RW,CD-ROM/XA,CD-ROM,CD-EXTRA,CD-TEXT Read Speed(Max): 24x CD, 8x DVD, 5x DVD-RAM CD Write Speed(Max): 8x CDR, 8x CDRW DVD Write Speed(Max): 8x DVD-R, 8x DVD+R, 4x DVD-RW, 4x DVD+RW, 2x DL-R, 2.4x DL+R, 5x DVD-RAM Rewrite Speed(Max): DVD+RW:4x; DVD-RW:4x; CD-RW:10x; DVD-RAM:3x