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Silver 1U server PSU, dual 40 mm fans, 24-pin and 8-pin connectors visible

Athena Power

Athena Power AP-U1ATX50 500W 1U server power supply

SKU CH-3SJZ-4KD13 MPN AP-U1ATX50

A 1U 500 W server power supply with 20+4-pin ATX, EPS 8-pin and four SATA connectors for 1U chassis

  • Single/RedundantSingle
  • Maximum Power500W
  • Main Connector20+4Pin
  • Output Current+3.3@20A,+5V@20A,+12V1@20A, +12V2@20A, +12V3@16A, [email pro
  • Input Voltage88 - 264 V
  • Input Frequency Range47 - 63 Hz

Option 500W

  • 500 W output powers dense 1U servers
  • 88–264 V full-range input suits global racks
  • Active PFC raises efficiency at load
  • 24-pin ATX plus EPS and P4 connectors
  • Dual 40 mm ball-bearing fans cool chassis

Product identity

The Athena Power AP-U1ATX50 is a 500W single-output 1U server power supply built for rack-mount chassis that require an EPS-style layout. It suits system integrators and IT teams deploying compact servers or workstations needing reliable DC delivery in a slim form factor.

Compatibility checks

Verify that your chassis accepts a 1U PSU measuring 1.59 by 8.66 by 3.94 inches and that the motherboard provides a 20+4 pin main header plus an EPS-12V 8 pin CPU header. Confirm the system can operate on 88 to 264 V input at 47 to 63 Hz and that the load profile stays within the rated +12V rail limits of 20 A, 20 A and 16 A respectively. Builds needing redundant supplies or higher total wattage should look elsewhere.

Build quality and daily use

Dual 40 mm ball-bearing fans with automatic speed control move air from rear to front, helping keep internal temperatures in check while moderating acoustic output. The unit carries 80 PLUS Bronze certification and active PFC for efficient conversion across the full input range. Connectors include one 24-pin ATX, one EPS-12V 8 pin, one 4+4 pin CPU, four SATA, four Molex and one floppy, covering typical server drive and board layouts. A remote on/off function allows external power sequencing. MTBF is rated at 100,000 hours at full load and 25 °C.

Puntos fuertes

  • 500 W output powers dense 1U servers
  • 88–264 V full-range input suits global racks
  • Active PFC raises efficiency at load
  • 24-pin ATX plus EPS and P4 connectors
  • Dual 40 mm ball-bearing fans cool chassis

Especificaciones

BrandAthena Power
ModelAP-U1ATX50
Single/RedundantSingle
Maximum Power500W
Main Connector20+4Pin
Output Current+3.3@20A,+5V@20A,+12V1@20A, +12V2@20A, +12V3@16A, [email protected] , +5VSB@3A
Input Voltage88 - 264 V
Input Frequency Range47 - 63 Hz
MTBF100,000 Hours on Maximum Load at +25 degree C
Hold-up Time17 ms Minimum at Nominal Input Voltage
FeaturesConnectors:
ATX Connector 24 (20+4) Pin x 1
EPS-12V 8 Pin x 1
P4-12V (4+4) Pin x 1
SATA 15 Pin x 4
Molex 4 Pin x 4
Floppy 4 Pin x 1
Dimensions1.59" x 8.66" x 3.94"
Weight3.50 lbs.
HumidityOperating: 0 degree C ~ +50 degree C on Full Load
Storage & Shipping: -20 degree C ~ +80 degree C
Temperature0 degree C ~ +50 degree C on Full Load
Peso de envío1.50 kg
Dimensiones del paquete281 × 189 × 102 mm

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Preguntas sobre este artículo

Does the PSU ship with all cables attached or are any modular leads sold separately?

The unit is non-modular; it comes with a fixed 24-pin ATX, one 8-pin EPS, one 4+4-pin CPU, four SATA, four Molex and one floppy connector already attached.

Which rail should I size my build around — the 12 V rails or the minor rails?

The three 12 V rails deliver 20 A, 20 A and 16 A respectively, while the 3.3 V and 5 V rails are each rated at 20 A; total output is capped at 500 W.

What does the 500 W rating mean when the PSU is running at 50 °C inside a 1U chassis?

The 500 W maximum is specified at full load up to 50 °C ambient, with a minimum 17 ms hold-up time and 100,000-hour MTBF at 25 °C.

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