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Rectangular silver metal server PSU with rear fan and cable bundle

Athena Power

Athena Power AP-AT40P8-PS2 server power supply 400W

SKU CH-C0DV-3V4ZW MPN AP-AT40P8-PS2

400 W server power supply with AT and Molex connectors for legacy systems and automation equipment

  • Max wattage400 W
  • Output current+5 V@30A, +12 V@32A
  • Supply voltage88–264 V
  • AC input frequency47–63 Hz
  • Mean time between failures100,000 h on Maximum Load at +25 degree C
  • Temperature rangeOperating: 0 degree C ~ + 50 degree C on Full Load Storage &
  • 400W maximum power supports demanding server workloads
  • 100,000 hour MTBF at 25°C ensures long-term reliability
  • Wide 88-264V input range suits global deployments
  • Legacy AT, Molex and floppy connectors fit older systems
  • Compact 3.40" x 5.90" x 5.50" chassis saves rack space

Industrial AT Power Supply

The Athena Power AP-AT40P8-PS2 is a 400W server power supply built for legacy AT systems and industrial equipment. It delivers +5V at 30A and +12V at 32A through native AT P8 and P9 connectors plus an AT push-button header.

Legacy Connector Layout

Seven Molex and two floppy connectors support multiple drives and peripherals without adapters. The unit accepts 88 to 264 V input at 47 to 63 Hz, allowing direct integration into existing racks or test benches worldwide.

Sustained Load Reliability

MTBF is rated at 100,000 hours at maximum load and 25 °C ambient. The supply operates continuously from 0 to 50 °C on full load, making it suitable for automation machines and OEM deployments that run around the clock.

How it compares

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

Price $56.99
Cheaper than about 85% 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 nameAthena Power
Model nameAP-AT40P8-PS2
Power
Max wattage400 W
Output current+5 V@30A, +12 V@32A
Supply voltage88–264 V
AC input frequency47–63 Hz
Size & build
Product dimensions3.4 in × 5.9 in × 5.5 in
Product weight3 lb (1.36 kg)
Shipping weight1.21 kg
Package size254 × 163 × 99 mm
Environment & compliance
Temperature rangeOperating: 0 degree C ~ + 50 degree C on Full Load
Storage & Shipping: -20 degree C ~ +80 degree C
More details
Mean time between failures100,000 h on Maximum Load at +25 degree C

Questions about this item

Will the +12V rail hold 32 A continuously at 50 °C?

The supply is rated for 32 A on +12V and operates up to 50 °C at full load, so the rail can sustain that current within the stated temperature range.

How loud or hot does it get when running 24/7 at full load?

MTBF is 100,000 hours at 25 °C maximum load; the unit is specified for continuous operation up to 50 °C, indicating it handles sustained heat without derating.

Which motherboard power connectors must my system already provide?

It requires an AT-style motherboard with P8 and P9 6-pin headers plus a 4-pin push-button connector; no ATX 20/24-pin or EPS 4/8-pin plugs are included.

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