Power Supply Zalman ZM500-XEII 500W

Zalman ZM500-XEII 500W is a compact ATX power supply that delivers nominal 500 W with up to 450 W available on the 12 V rail. Designed for desktop systems, it provides 83% efficiency and multiple protection mechanisms to ensure stable power delivery for a range of configurations.

Advantages

The unit offers a strong +12V output (37.5 A) suitable for mid-range systems, dedicated rails for +3.3 V and +5 V supplies, and a dedicated 5 V standby rail (2 A). Its quiet operation and standard mains compatibility (220–230 V, 50/60 Hz) make it suitable for continuous use while maintaining stable voltages under typical loads.

Suitable for

• Home and office desktop PCs
• Gaming systems with mid-range graphics
• Workstations requiring stable 12 V power

Key specifications

• Nominal power: 500 W
• Power on 12 V line: 450 W
• +12 V line current: 37.5 A
• +3.3 V line current: 16 A
• +5 V line current: 15 A
• +5 V standby current: 2 A
• -12 V line current: 0.3 A
• Mains input voltage range: 220–230 V, 50/60 Hz

How to use

Install the Zalman ZM500-XEII into a compatible ATX case, connect the 24-pin motherboard connector, CPU power connector and required peripheral or PCIe connectors to your components. Ensure the mains voltage matches the specified 220–230 V range and secure the unit with mounting screws. After installation, power on the system and verify stable boot and voltages in BIOS or with monitoring software.

Recommendations

Use this 500 W PSU in systems whose total component power draw remains below the nominal rating—leave headroom for peak loads. Verify connector compatibility for your GPU and peripherals and allow for adequate case ventilation to maintain quiet operation and longevity.