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Rectangular silver 1U server PSU with 24-pin, SATA, PCIe and IDE connectors

WMtec

WMtec DPS-400AB-12 400W server power supply

SKU CH-7VMX-BAV73 MPN DPS-400AB-12

Delivers 400W with 24-pin ATX, SATA, IDE and 6-pin PCIe connectors for 1U servers

  • 400W output powers compact 1U servers
  • 21A on the +12V rail feeds CPU and GPU loads
  • 24-pin ATX plus P4, SATA, IDE, HDD and 6-pin PCI-E connectors cover varied builds
  • 15 x 4 x 8 cm form factor fits small chassis
  • 3V 10A, 5V 16A and 5VSB 2A rails support legacy and standby components

400W 1U server power supply

The WMtec DPS-400AB-12 delivers 400W in a 15 x 4 x 8 cm 1U form factor. It provides a 24-pin ATX connector, one P4, one SATA, two IDE, two HDD, one 6-pin PCI-E and a 6P input. Output rails are rated at 3.3V 10A, +5V 16A, +12V 21A and +5VSB 2A.

Suits 1U builds with legacy drives.

This unit fits compact servers or workstations that still use IDE or SATA storage and need a single 6-pin PCI-E connector. Builds requiring multiple PCI-E power cables, higher 12V current or modular cabling should look elsewhere.

21A on the +12V rail

The +12V line supplies up to 21A, which sets the practical limit for CPU and graphics power. Verify that your components stay within this current budget before installing.

How it compares

Measured against everything we stock in Server & Hot-Plug PSUs, at today’s prices. Recalculated every night.

Price $139.99
Typical for this category: the median of 3,798 items is $131.99.

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Specifications

No published specifications for this item yet.

Questions about this item

Will the 24-pin ATX connector or the 6-pin PCIe plug need replacing first?

Both connectors are part of the fixed cable harness; neither is designed to be user-replaceable, so the entire unit would be swapped if a connector fails.

What is the first limit reached when the +12 V rail runs at 21 A continuously?

The +12 V rail is rated at 21 A; sustained draw at that level hits the rail's current ceiling and will activate the supply's over-current protection.

How much heat and noise should I expect when the unit runs at full 400 W load all day?

The 400 W rating means up to 400 W of waste heat can be produced at full load, and the internal fan will run continuously to dissipate it.

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