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Silver rectangular 1U server PSU with two fans and mesh grille

Athena Power

Athena Power AP-U1ATX40P8 400W 1U server power supply

SKU CH-HEBD-JD4J6 MPN AP-U1ATX40P8

A 400 watt single 1U server power supply with 80PLUS Bronze certification, active PFC, dual fans and a 20+4 pin main connector

  • Single/RedundantSingle
  • Maximum Power400W
  • Main Connector20+4Pin
  • Output Current+3.3V@16A, +5V@16A, +12V1@11A, +12V2@11A, [email protected]
  • Input Voltage88 -264 Volts Ac
  • Input Frequency Range47 - 63 Hz

Option 400W

  • 400W
  • 500W
  • 600W

Struck-through versions exist but are not stocked here.

  • 80PLUS Bronze certification lowers energy waste
  • Active PFC meets EN61000-3-2 for clean power draw
  • Dual fans with smart speed control keep noise low
  • 100,000-hour MTBF at full load and +25°C
  • Fits 1U racks at 3.93" x 1.57" x 7.87

1U 400W server power supply

The Athena Power AP-U1ATX40P8 is a single 400W unit built for 1U rackmount servers. It delivers +12V across two rails at 11A each with a 20+4 pin main connector and an EPS 8-pin CPU connector. The supply suits integrators assembling dense compute nodes that require standard ATX and EPS power in a compact chassis.

80 PLUS Bronze 88-264V AC input

Efficiency meets 80 PLUS Bronze certification with active PFC compliant to EN61000-3-2. The full-range input accepts 88 to 264 volts AC at 47 to 63 Hz without manual switching. Hold-up time is rated at 17ms minimum at nominal voltage. The unit provides over-voltage, short-circuit and overload protection but lacks redundant or hot-swap capability for high-availability clusters.

Dual-fan cooled 3.0lb chassis with SATA

Two internal fans are managed by a smart auto speed controller for thermal balance. The enclosure measures 3.93 by 1.57 by 7.87 inches and weighs 3.0lbs. Connectors include three SATA, two PCIe 6-pin, two Molex, one floppy and dual P4 4-pin plugs. Operating temperature range is 0°C to 50°C at full load with MTBF of 100,000 hours at 25°C.

Highlights

  • 80PLUS Bronze certification lowers energy waste
  • Active PFC meets EN61000-3-2 for clean power draw
  • Dual fans with smart speed control keep noise low
  • 100,000-hour MTBF at full load and +25°C
  • Fits 1U racks at 3.93" x 1.57" x 7.87

Specifications

BrandAthena Power
ModelAP-U1ATX40P8
Single/RedundantSingle
Maximum Power400W
Main Connector20+4Pin
Output Current+3.3V@16A, +5V@16A, +12V1@11A, +12V2@11A, [email protected] , [email protected]
Input Voltage88 -264 Volts Ac
Input Frequency Range47 - 63 Hz
Fans2
MTBF100,000 Hours on Maximum Load at +25°C
Hold-up Time17ms Minimum at Nominal Input Voltage
ProtectionOver voltage and circuit protection
Features80PLUS Bronze Certification
Active PFC (Power Factor Correction) meets EN61000-3-2
Full Range Input: 90~264 Volts AC
Smart Auto Fan Speed Controller
100% Hi-pot, ATE and Burn-in Tested
Output Over Voltage, Short Circuit and Overload Protection.
Low Noise and Ripple
RoHS Compliance
Connectors
ATX 24(20+4) Pin x 1
P4-12V 4 Pin x 2
EPS-12V 8 Pin x 1
PCIE 6 Pin x 2
SATA 15 Pin x 3
Molex 4 Pin x 2
Floppy 4 Pin x 1
Dimensions3.93" x 1.57" x 7.87"
Weight3.0lbs.
Humidity5 ~ 90% on Operating, 5 ~ 95% on Storage
TemperatureOperating: 0°C ~ +50°C on Full Load
Package Contents1 x AP-U1ATX40P8
1 x Power Cord
Shipping weight1.27 kg
Package size251 × 157 × 81 mm

Questions about this item

Should I choose a single or redundant 400W supply for my 1U server?

This model is a single 400W unit; it does not support redundant operation.

What does the 400W rating mean for actual 12V delivery in a server build?

The two 12V rails each provide up to 11A, giving a combined 12V capacity within the 400W total.

Does the EPS 80 PLUS Bronze rating limit the input voltage range I can use?

The unit accepts 88–264 V AC at 47–63 Hz, so the efficiency rating does not restrict the input range.

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