1. USB (Universal Serial Bus) 2.0 External Portable Outdoor Caddy For Laptop CD/CR-W/DVD/DVD-W/ Combo Drive 2. Fit All 50-pin Laptop Drive (CD-Rom, CD-RW, CD Combo, DVD-Rom, DVD RW +/- ) 3. Support USB (Universal Serial Bus) 2.0 (480 Mb/sec) fully backward compatible with USB1.1 (12 Mb/sec) 4. Compatible with All USB (Universal Serial Bus) Port 5. No External Power Required 6. Easy to Install 7. Size: 135 x 135 x 20 mm System Requirements: 1. Equivalent Pentium 266 M Hz or higher, Celeron 266 M Hz or higher, AMD K6-2 266 M Hz or higher 64MB RAM or higher 2. Windows 98SE/ME/NT4.0/2000/XP/2003 or MAC OS 8.6 above Package Included: (Shown in Last Photo) 1 x Case 2 x USB (Universal Serial Bus) Cable 2 x Screws 1 x CD Driver 1 x User Manual Notice: 1. This housing is for IDE optical drives only 2. Please Check Compatility brfore Purchase