Original equipment Apple drive manufactured by Matsushita or Pioneer Dual-Layer DVD-RW SuperDrive®. This drive has a 8x DVD+-R/DVD+-RW read/write, 24x24x24 CDRW, 4x DVD+-DL, 12.7mm, 2MB cache. Drive is directly compatible with bronze G3 PowerBooks, and all G4s laptops. Additional hardware maybe required for installation in some models. Bare drive (cable, brackets, and bezel not included). Drive performance may be limited by other factors.