PSU for R300 400W Switching Power Supply - D400P-00 / H400P-00 / DPS-400YB A (DU636, JY924)

Replacement switching power supply for R300 systems, rated 400W. Compatible with model numbers D400P-00, H400P-00 and DPS-400YB A, and cross-referenced to part IDs DU636 and JY924. Intended as a direct PSU swap for equipment requiring a 400W switching power unit for the R300.