Ultrabook External USB 3.0 6X 3D Blu-ray Recorder for Lenovo Thinkpad T440s T430U S440 T440 X230 X240 U530 U300S Dual Layer BD-RE DL Blue-ray Writer Portable Optical Drive Condition: Brand New In Box. This is a third-party made product, so there is no brand logo outside. Please be aware before buying. Standard USB 3.0 transfer, backward compatble with USB 2.0, supports Max 5Gbps data transfer rate. Supports Windows 2000/XP/2003/Vista/Win7/Win8, Linux, Mac 10 OS. Tray-Loading, lets you read and write to Blu-Ray, DVD and CD formats. It can burn Blu-ray movies and data up to 6X Speeding, support Hot Plug Play. BD-R (SL/LTH): 6x BD-R DL 4x BD-RE (SL/DL) 4x DVD+R : 8x DVD+R DL : 4x DVD+RW : 8x DVD-R : 8x DVD-R DL : 4x DVD-RW : 6x DVD-RAM: 5x CD-R : 24x CD-RW : 10x