... OS X. 8.Compatible USB 2.0 and USB 1.1.Specification : 1.Type : external Blu-ray DVD burner 2.Speed:4x ... maximum read speed (BD-ROM) 8x maximum write speed (DVD±R) ... 3.Interface : Plug and Play, Hi-Speed USB 2.0, 1.1 standard (Downward compatible) 4.Supported CD Formats : BD-R, BD ... R DL, BD-RE, BD-RE DL, DVD-R, DVD-ROM, DVD-R, DVD-R DL, DVD-RW, DVD-RAM, ...