。 Maximum DVD Dual Layer (DL) burn speed at 6x and read speed at 8x. Maximum read speeds of 8x for DVD-R/+R and 24x for CD-R. Operating requirements: Windows 8, Windows 7, Windows Vista, Windows XP, Mac OS X 。 CPU and RAM requirements: Pentium IV 2.4 GHz or Higher, 256 MB or higher 。 Maximum burn speeds of 8x for DVD-R/+R and 24x for CD-R. LG AP70NS50 8x DVDRW DL USB 2.0 Slim External SuperMulti Blade Drive - Silver: Computers & Accessories. Silver LG AP70NS50 8x DVDRW DL USB 2.0 Slim External SuperMulti Blade Drive Silver LG AP70NS50 8x DVDRW DL USB 2.0 Slim External SuperMulti Blade Drive.