External Enclosure ( Box ) Kingwin KWI KH-525 Series (Black) for 5.25-inch IDE CD Drive connects to USB 2.0, or Firewire IEEE 1394 CSE-xx-525-KH-BK 1.      2.      3. Options: ( not all items are available, subject to inventory ) for 5.25-inch CD Drive - KH-525 Series 1. CSE-U2-525-KH-BK    - Kingwin KWI KH-525U-BK for 5.25" IDE Drive to USB 2.0 2. CSE-FW-525-KH-BK   - Kingwin KWI KH-525F-BK for 5.25" IDE Drive to Firewire 3. CSE-UF-525-KH-BK    - Kingwin KWI KH-525UF-BK for 5.25" IDE Drive to USB or Firewire