Sony Blu-ray Slim External Optical Drive BDX-S500U Sony External Slim Blu-ray Rewriter BDX-S500U 6x USB Black Retail Blu-ray write: 6x BD-R, 4x BD-R DL, 2x BD-RE 50 GB of HD video or data storage 3D Blu-ray support Hi-Speed USB 2.0 Certified