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Silver rectangular server PSU with 120mm fan, 20+4 pin and SATA cables visible

iStarUSA Inc.

iStarUSA Inc. TC-400PD8 400W server power supply

SKU CH-QDVR-74RCQ MPN TC-400PD8

A 400 W server power supply with a 120 mm low-noise ball-bearing fan, 80 % minimum efficiency, dual 12 V rails and a full set of SATA, PCIe and Molex connectors

  • Max wattage400 W
  • Power efficiency80% minimum
  • Power supply redundancySingle
  • Main power connector20+4Pin
  • Output current+3.3 V @ 24A, +5 V @ 23A, +12 V @ 17A, +12V1 @ 15A, -12 V @
  • Fan configuration120 mm Low Noise Ball Bearing Fan
  • Reliable server uptime backed by >100,000-hour MTBF
  • Quiet cooling from 120mm low-noise ball-bearing fan
  • Efficient power delivery with 80% minimum efficiency
  • Broad component support via SATA, PCIe and Molex connectors
  • Comprehensive protection including over-current, over-voltage and short-circuit safeguards

400W single PSU for legacy servers

The iStarUSA TC-400PD8 delivers 400W through a single non-redundant design with a 20+4Pin main connector. Dual 12V rails supply +12V at 17A and +12V1 at 15A alongside +3.3V at 24A, +5V at 23A, -12V at .5A and +5Vsb at 2.5A. A 120mm low-noise ball bearing fan provides active cooling. It suits builders maintaining or repairing older server platforms that require this connector layout and rail distribution.

Steady output under continuous demand

Rated efficiency reaches 80% minimum across the load range with active PFC and full-range input. Over-current, over-voltage and short-circuit protections engage to maintain stable delivery during sustained operation. The dual 12V architecture balances peripheral and motherboard draws without single-rail bottlenecks. An MTBF exceeding 100000 hours reflects the design target for continuous server duty rather than intermittent desktop use.

Thermal and acoustic profile in rack use

The 120mm ball bearing fan moves air through the 5.91" x 3.39" x 5.51" chassis while keeping acoustic output low for a server environment. ROHS compliance and 80 Plus certification indicate controlled heat generation at typical loads. Connector complement includes one 6-pin PCIe, four SATA, three 4-pin Molex, two floppy and one 4-pin 12V lead. Buyers needing redundant hot-swap units or higher-wattage single modules will need a different form factor.

How it compares

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

Price $63.99
Cheaper than about 82% of the 3,798 comparable items (median $131.99).
Max wattage 400 W
Lower than about 70% of the 235 comparable items (median 668 W).

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Specifications

Product
Brand nameiStarUSA
Model nameTC-400PD8
Power
Max wattage400 W
Power efficiency80% minimum
Power supply redundancySingle
Main power connector20+4Pin
Output current+3.3 V @ 24A, +5 V @ 23A, +12 V @ 17A, +12V1 @ 15A, -12 V @ 0.5A, +5Vsb @ 2.5A
Built-in protectionOver Current Protection
Over Voltage Protection
Short-Circuit Protection
Size & build
Product dimensions5.91 in × 3.39 in × 5.51 in
Shipping weight1.84 kg
Package size203 × 171 × 152 mm
More details
Fan configuration120 mm Low Noise Ball Bearing Fan
Mean time between failures>100,000 h

Questions about this item

How loud is the 120mm fan when the 400W supply runs continuously?

The 120mm low-noise ball-bearing fan is designed for quiet server operation under sustained load.

Which motherboard and CPU connectors must my system provide for the 20+4Pin main and 4Pin 12V plugs?

This unit includes one 20+4Pin ATX connector and one 4-pin 12V CPU connector for standard motherboards.

Will the four SATA and three Molex connectors power older drives alongside a modern SSD?

Four SATA and three 4-pin Molex connectors let you mix current SSDs with legacy hard drives or optical units.

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