BUSlink DBW-1688-U2. CD write speed: 48 x, CD rewrite speed: 24 x, DVD+R Double Layer write speed: 16 x. CD read speed: 48 x, DVD+R read speed: 16 x. Drive device, buffer size: 8 MB, Optical drive type: DVD±R/RW, Interface: USB 2.0. Weight: 2608 g, Height: 57 mm, Depth: 184 mm. Colour of product: Black