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Compact silver Micro SFX power supply unit with dual fans and modular cable connectors visible

Athena Power

Athena Power AP-MP4ATX80FEP8 Apollo 800W Micro SFX power supply

SKU CH-ZANV-E9RBE MPN AP-MP4ATX80FEP8

Micro SFX unit delivers 800 W with dual +12 V rails, eight SATA connectors and four PCIe plugs for compact servers and custom builds

  • Max wattage800 W
  • Main power connector20+4Pin
  • 12V rails2
  • PCIe power connectors2 × 6-Pin, 2 × 6+2-Pin
  • SATA power connectors8
  • Power hold-up time17 ms Minimum at Nominal Input Voltage
  • 800 W maximum power drives demanding server builds
  • Micro SFX form factor fits 2.5" x 4.9" x 5.2" mini-ATX chassis
  • Dual +12 V rails each rated at 32 A for stable multi-GPU loads
  • Active PFC with 88–264 V full-range input handles global mains automatically
  • MTBF exceeds 100000 hours for long-term reliability

Compact 800 W Micro SFX for custom builds

This Athena Power Apollo Series unit delivers 800 W in a Micro SFX form factor measuring 2.5" x 4.9" x 5.2". It targets builders of mini-ATX cases, HTPCs and mini-servers who need high output from a small chassis. The 88–264 V full-range input with Active PFC handles worldwide mains without a voltage switch. It is not for buyers who need ATX or SFX-L dimensions or redundant server supplies.

Straightforward cable routing with fixed leads

All connectors are native to the unit: 20+4-pin ATX, one 4-pin and two 8-pin EPS, two 6-pin and two 6+2-pin PCIe, eight SATA, two Molex and one floppy. The fixed cables simplify inventory but cannot be removed for custom sleeving. Builders must verify that the supplied EPS and PCIe counts match their motherboard and GPU requirements before ordering. No modular cables or adapter kit is included.

Dual +12 V rails rated for sustained 800 W

The two +12 V rails each supply 32 A, with +3.3 V at 20 A and +5 V at 22 A, allowing continuous 800 W delivery. Hold-up time is 17 ms at nominal input, and MTBF exceeds 100,000 hours. Dual fans cool the unit under prolonged load. It is not for systems that draw more than 800 W continuously or require single-rail +12 V designs.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $80.99
Cheaper than about 75% of the 10,869 comparable items (median $142.99).
Max wattage 800 W
Lower than about 55% of the 930 comparable items (median 850 W).

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Specifications

Product
Brand nameAthena Power
Product lineApollo Series
Model nameAP-MP4ATX80FEP8
Product typeMicro SFX
Ports & slots
PCIe power connectors2 × 6-Pin, 2 × 6+2-Pin
SATA power connectors8
Output type+3.3 V@20A, +5 V@22A, +12V1@32A, +12V2@32A
Connection types1 x ATX 24(20+4) Pin
1 x P4-12 V 4 Pin
2 x EPS 12 V 8 Pin
2 x PCIE 6 Pin
2 x PCIE 6+2 Pin
8 x SATA 15 Pin
2 x Molex 4 Pin
1 x Floppy 4 Pin
Power
Max wattage800 W
Main power connector20+4Pin
12V rails2
Power hold-up time17 ms Minimum at Nominal Input Voltage
Supply voltage88–264 V
AC input frequency47–63 Hz
Size & build
Product dimensions2.5 in × 4.9 in × 5.2 in
Shipping weight1.97 kg
Package size282 × 183 × 99 mm
More details
Mean time between failures>100,000 h

Questions about this item

How can I confirm the 800 W Apollo unit is operating correctly once installed?

The PSU delivers 800 W with dual +12 V rails rated at 32 A each and a 17 ms minimum hold-up time at nominal input voltage.

Which cables and connectors ship with the AP-MP4ATX80FEP8 and what must I source separately?

The box includes 1 x ATX 24(20+4) Pin, 1 x P4-12V 4 Pin, 2 x EPS 12V 8 Pin, 2 x PCIE 6 Pin, 2 x PCIE 6+2 Pin, 8 x SATA 15 Pin, 2 x Molex 4 Pin and 1 x Floppy 4 Pin; no extra cables are required for standard builds.

Which version of the Apollo Micro SFX line should I choose for a compact server needing 800 W?

The AP-MP4ATX80FEP8 is the 800 W Micro SFX model with dual +12 V rails at 32 A, Active PFC and full-range 88-264 V input for mini-server and custom PC use.

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