Power Supply Zalman ZM400-XEII 400W

Zalman ZM400-XEII 400W is a compact ATX12V 2.3 power supply designed for standard PC cases. It delivers up to 400 W total power with two separate +12V lines and a combined +12V capacity of 360 W. The unit includes a 120 mm fan and supports mains input of 220–230 V with an efficiency around 80–83%.

Advantages

The Zalman ZM400-XEII offers a balance of stable power delivery and compact size, with dual +12V rails to distribute load and a 120 mm cooling fan for consistent thermal management. Its compliance with ATX12V 2.3 ensures compatibility with common motherboards, and the listed efficiency helps to reduce energy losses during operation.

Suitable for

• Home and office desktop builds with low to moderate power requirements
• Entry-level gaming or multimedia PCs without high-end graphics cards
• System upgrades where a compact, standard ATX PSU is needed

Key specifications

• Total power: 400 W
• Power supply standard: ATX12V 2.3
• Mains input voltage range: 220–230 V
• Number of separate +12V lines: 2
• Max. line current (+12V): 17 A per rail
• Combined +12V load: 360 W
• Efficiency: 80–83%
• Fan: 1 × 120 mm
• Colour: Black
• Weight: 2 kg

How to use

Install the Zalman ZM400-XEII into a compatible standard ATX case following the case and motherboard manufacturers' instructions. Connect the 24-pin ATX main connector, the 4/8-pin CPU power connector if required, and any peripheral connectors to drives or accessories. Ensure the PSU is secured in the case, that airflow is not obstructed, and that the mains voltage matches the specified 220–230 V range before powering on the system.

Recommendations

For reliable operation, keep the PSU intake and exhaust clear of dust and obstructions, use it within its combined +12V load limit of 360 W, and pair it with components whose total power draw stays comfortably below the 400 W rating to allow headroom for transient loads.