HP 9121D/S User Manual page 18

SECTION VIII
REPLACEABLE PARTS
[1] EXCHANGE ASSEMBLIES
HP 9121D/S Controller PCA
HP 9122D/S Controller PCA
HP 9121/22 D/S
09121-69510
09122-69501
09121-69521
09114-69511
3 1/2-inch Drive (single-sided)
3 1/2-inch Drive (double-sided)
[2] NON-EXCHANGE ASSEMBLIES
2110-0012
211 0-000 1
09121-61611
09121-61612
Fuse 0.5A 250V
Fuse 1.0A 250V
Ribbon Cable
DC Power Cable
8-1