Lenovo ThinkCentre 7522 User Manual page 29

Drive specifications
Your computer comes with the following factory-installed drives:
v A 3.5-inch hard disk drive in bay 1
v An optical drive in bay 2 (some models)
Figure 12 shows the locations of the drive bays.
Figure 12. Drive bay locations
The following list describes the type and size of the drive that you can install in
each bay:
1 Bay 1 - Maximum height: 25.8 mm (1 inch)
2 Bay 2 - Maximum height: 43.0 mm (1.7 inches)
Maximum length: 180 mm (7.08 inches)
Internal hard disk drive
Optical drive, such as a CD drive or a
DVD drive (preinstalled in some
models)
5.25-inch hard disk drive
Chapter 2. Installing options and replacing hardware
21