Hub interface: 2 usb2.0 interfaces, 1 SD card slot, 1 TF card slot (up to 1TB read capacity) Interface: USB3.0 (compatible with 2.0 and 1.0) + Type-c interface Read: CD-ROM 24X, DVD-ROM 8X;<br><br>Burn: DVD+R 8X, DVD-R 8X; DVD+RW 8X, DVD-RW 6X; DVD+R9 6x (DL, Dual-layer, plus dual-layer 8.5G recording), DVD-R9 6X (DL, Dual-layer, dual-layer 8.5G recording), DVD-RAM 5x; CD-R 24X, CD-RW 24X. (Full-featured, reading and burning speeds are the highest among external optical drives) Cache size: 2MB Plug and play without driver installation (except Windows98SE system) Support Windows98SE/ME/2000/XP/Linux/for MacOS/win7, win8, win10, win11 operating system Support DOS startup (boot XP and other operating systems) Colour:Black Material:ABS<br><br>Package Contents: 1 x External CD/DVD Drive 1 x Power Supply Cable<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.