FSA128 420W PDB Switching Power Supply for TS440 / TS540 — 03X3799 0A91434

Replacement PDB switching power supply, model FSA128, rated 420W for use with TS440 and TS540 systems. Compatible part numbers: 03X3799 and 0A91434. Supplied as a direct-replacement unit for failed or worn 420W PDB power modules.