Part 28685A is compatible in the following Models:

HPE 9000 K-Class Servers

HPE 9000 EPS22 K460 Module (SMP) - A3199A
HPE 9000 EPS21 K420 Module (HA) - A3523A
HPE 9000 EPS21 K420 Module (Non HA) - A3525A
HPE 9000 EPS21 K420 Module (SMP) - A3528A