IBM 8123 User Manual page 32

The following illustration shows the locations of the drive bays.
The following list describes the types and size of drives you can install in each
bay:
* You can obtain a Universal Adapter Bracket, 5.25 to 3.5-inch, from a local
computer retailer or by contacting the Customer Support Center.
16
User Guide
1 Bay 1 - Maximum height: 43.0 mm (1.7 in.)
2 Bay 2 - Maximum height: 43.0 mm (1.7 in.)
3 Bay 3 - Maximum height: 25.8 mm (1.0 in.)
4 Bay 4 - Maximum height: 25.8 mm (1.0 in.)
v Optical drive such as CD drive or DVD
drive (preinstalled in some models)
v 5.25-inch hard disk drive
v 3.5-inch hard disk drive (requires a
Universal Adapter Bracket, 5.25 to
3.5-inch)*
v Optical drive such as CD drive or DVD
drive
v 5.25-inch removable media drive
v 3.5-inch hard disk drive (requires a
Universal Adapter Bracket, 5.25 to
3.5-inch)*
3.5-inch diskette drive (preinstalled)
3.5-inch SATA hard disk drive
(preinstalled)