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Athena Power AP-U1ATX30A 1U 300W Server Power Supply

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  • 300W
  • 20+4Pin
  • Dual Fans
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Overview
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The Athena Power AP-U1ATX30A is designed for the 1U form factor to provide compact flexibility for a small industrial computer rackmount chassis. It provides dual 40mm ball-bearing fans and thermal fan speed control for maximum heat and noise dissipation. It also supports 20-pin ATX v2.2 motherboards.

Specifications:Form Factor:- ATXPower Supply Wattage:- 300WattSLI/CrossFire Ready: Power Supply Connectors:- Mother Board Connector:- 20 pin Connector x 1 - CPU Connector:- 4 pin x 1- 4 + 4 pin x 0- 8 pin x 0 - PCI-E Connector:- 6 pin x 0- 6 + 2 pin x 0- 8 pin x 0 - SATA Connectors:- 2 - 4 Pin Molex:- 3 - Floppy Connector:- 1 Cooling:- Dual FanDimensions:- 3.875"(W) x 1.50"(H) x 7.50"(D)

Warranty & Returns

Warranty, Returns, And Additional Information

Return Policies

    We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1st, 2025 and December 31, 2025 you will have until January 31, 2026 to return your product.

  • Return for refund until: January 31, 2026
  • Return for replacement until: January 31, 2026
  • This item is covered by Newegg.com's Extended Holiday Return Policy.
  • Read full return policy for details.

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The Athena Power AP-U1ATX30A is a single 300W 1U server power supply for compact rackmount or industrial computer systems that need modest power and a 20+4-pin ATX connector. It has dual fans with automatic speed control, active PFC, and over-voltage, short-circuit, and overload protection.

Recommended For

  • Builders of compact 1U rackmount or industrial PCs who need a power supply designed for that chassis form factor.
  • Home-lab or network-appliance builders whose system fits a 1U PSU and has a modest power budget, with no need for a PCIe graphics-power connector.
  • Owners of compatible older ATX systems that use a 20+4-pin motherboard connection and a 4-pin CPU power connector.
  • Technicians replacing a failed supply in a compatible 1U IPC or rackmount chassis who can verify the dimensions, connectors, and power requirements before fitting it.

Real-World Use Scenarios

  • Building a compact 1U industrial PC or rack server: this supply is intended for compatible 1U chassis and ATX motherboards, so it can power a space-constrained system without using a full-size ATX PSU.
  • Replacing a failed supply in an older 1U IPC: it may suit a repair when the chassis, motherboard connectors, mounting, and power requirements match; confirm compatibility before ordering, since the model is approaching end of life.
  • Building a rackmount router or firewall appliance: in a compatible 1U case, it can supply a modest motherboard-based network system while keeping the equipment rack-mounted; check the complete system’s power needs and cooling.
  • Running a small home-lab or file-server build: it can be considered for a low-demand system in a matching 1U chassis, but verify the CPU, drives, and other components stay within the supply’s available output.
  • Using a compact 1U system in a shared or quiet room: the supply’s fan speed adjusts to heat, but its dual small fans are not a guarantee of silent operation, so expect to assess noise in the finished chassis.

Spec Summary

AttributeValue
Best ForSingle 300W server power supply for computer systems
Power Output And Input300W maximum output; +3.3V at 10A, +5V at 10A, +12V at 6A minimum and 15A maximum, -12V at 0A minimum and 0.3A maximum, and +5VSB at 2.5A; accepts 88–264V AC at 47–63Hz, with 17ms minimum hold-up time at nominal input voltage and active PFC meeting EN61000-3-2
Connectors And Cabling20+4-pin ATX main connector; one P4-12V 4-pin, two SATA 15-pin, two Molex 4-pin, and one floppy 4-pin connector
Cooling And Operating CharacteristicsAir-cooled with two fans and a smart automatic fan-speed controller; specified for low noise and ripple
Protection And ReliabilityOver-voltage, short-circuit, and overload protection; 100,000-hour MTBF at full load and 25°C; 100% Hi-pot, ATE, and burn-in tested
Physical Specifications1.55 × 3.94 × 7.87 inches; 3.00 lb
Operating EnvironmentFull-load operating temperature: 0°C to +50°C; humidity: 5–90% during operation and 5–95% in storage
Package ContentsOne AP-U1ATX30A power supply and one power cord
Model IdentifiersAthena Power AP-U1ATX30A