LG BP50NB40 6x Blu-ray Rewriter BD-RE/8x DVD&plusmn;RW DL USB 2.0 Slim External Drive ( Maximum CD Read Speed:24x / Maximum CD Write Speed:24x / Maximum CD Rewrite Speed:16x / Maximum BD Read Speed:6x Maximum BD Rewrite Speed:2x / Maximum DVD Read Speed:8x / Maximum DVD Write Speed:8x / Maximum DVD Rewrite Speed:8x Media Layer Supported:Triple-layer / Host Interface:USB 2.0 / Color:Black / Drive Type:External Width:5.7" / Depth:6.1" / Weight (Approximate):9.52 oz / Environmentally Friendly:Yes