Samsung 6x SE-506CB/RSBD Portable Blu-ray Writer with M-DISC Support, Installation Disc, and USB 2.0 Cable (Black, Retail Box) Operating requirements: Windows XP (SP1 or higher), Windows Vista, Windows 7, Windows 8, Windows 10, Mac CPU and RAM requirements: Pentium 4 (3.2 Ghz or higher), 1.0GB RAM (or higher) Maximum burn speeds of 6x for BD-R, 8x for DVD-R/+R and 24x for CD-R, maximum read speeds of 6x for BD-R, 8x for DVD-R/+R and 24x for CD-R Maximum BD Dual Layer (DL) burn speed at 6x and read speed at 6x. Maximum DVD Dual Layer (DL) burn speed at 6x and read speed at 8x Buffer size of 4MB with Buffer Under Run Free Technology