Part
70-31668-01
is compatible in the following Models:
Compaq AlphaStation 400 series
ALPHASTATION 400 KERNEL - PB50H-AA
Compaq AlphaStation 400 - PB520-AB
DIGITAL AlphaServer 400 series
DIGITAL AlphaServer 400 - PB51C-AA
DIGITAL AlphaServer 400 - PB51C-BA