Aleratec 260160 1:4 HLS CD/DVD Duplicator with LightScribe. CD write speed: 40 x, CD rewrite speed: 32 x, DVD+R write speed: 20 x. CD read speed: 48 x, DVD-ROM read speed: 16 x, CD-ROM read speed: 40 x. Interface: USB. Minimum system requirements: Windows Vista x64 Edition/XP Pro x64 Edition/2000 SP4, Minimum RAM: 1024 MB, Minimum processor: Pentium IIII 2 GHz. Power requirements: 115 - 230