Blu-Ray Player External USB DVD RW Laptop Burner Drive 1. please refer to our products are chinese / english bilingual instructions. 2.item can't use for mac and it have been note.drive specifications: 2x bd-rom reading 5x dvd-ram writing 8x dvd-r writing 2x dvd-r dl writing 4x dvd-rw writing 8x dvd+r writing 2.4x dvd+r dl writing 4x dvd+rw writing 8x cd-r writing 8x cd-rw writing 24xcd reading speed 8xdvd reading speed 1.6xbd reading speed condition: brandnew plug play ! system requirement : windows 98se/2000/me/xp/vista/ windows 7, not for mac buffer size : (137mm), height : 0.7 in (18mm) note: if you connect with your desktop computers ,you need to connect it with the computer's mortherboard .