Part
230821-021
is compatible in the following Models:
Compaq AlphaStation 400 series
ALPHASTATION 400 KERNEL - PB50H-AA
DIGITAL AlphaServer 1000 series
DIGITAL AlphaServer 1000 - PB71B-MA
DIGITAL AlphaServer 1000 - PB71B-MB
DIGITAL AlphaServer 400 series
DIGITAL AlphaServer 400 - PB511-AB
DIGITAL AlphaServer 400 - PB512-AB