HP Power Supply Z4 G4 750W 90% EfficiencyHP Power Supply Z4 G4 750W 90%750W Internal Power Supply, 90% Efficiency, Active Power Factor Correction (PFC), Designed for HP Z4 G4 Workstations, Reliable Power Delivery. Maximize the performance of your HP Z4 G4 workstation with this high performance 750W internal power supply (PSU). Engineered to provide reliable power for demanding Intel Xeon configurations, this PSU ensures your workstation operates at optimal levels. With up to 90% efficiency,