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Rectangular silver server PSU with dual fans, 158 by 150 by 86 mm

Athena Power

Athena Power AP-PS2MK12P868 1200W server power supply

SKU CH-PCW2-QW97K

Delivers 1200W continuous power with 92% Platinum efficiency, ATX 3.1 and PCIe 5.0 compliance, a 600W 12V-2x6 GPU connector, dual smart fans, low ripple.

  • Max wattage1200 W
  • Power efficiency> =92%
  • Power supply redundancySingle
  • Fan configuration2
  • Main power connector20+4Pin
  • Output current+3.3 V@18A, +5 V@18A,+12 V@100A
  • 1200W continuous output powers demanding servers and workstations
  • 80 PLUS Platinum certification delivers up to 92% efficiency at typical loads
  • ATX 3.1 and PCIe 5.0 compliance ensures next-generation hardware compatibility
  • 12V-2x6 (H++) connector supplies 600W to modern GPUs safely
  • Dual smart fans with thermal speed control maintain quiet, stable cooling

Built for high-output servers and GPU workstations

This 1200W single PS2 unit carries 80 PLUS Platinum certification and meets ATX 3.1 with PCIe 5.0 specifications. A 12V-2x6 connector rated at 600W feeds modern graphics cards used in AI, rendering and HPC clusters. Dual smart fans adjust speed to thermal load while low ripple protects sensitive audio or measurement circuits.

Replaces older Platinum

The jump is worth it when your GPU demands the new connector or when efficiency at 92% cuts heat in a densely packed rack. Systems still running on legacy 6+2 pin cables or without ATX 3.1 compliance will not benefit from the updated power delivery. Buyers who need redundant hot-swap supplies should look elsewhere.

Standard PS2 dimensions fit common server chassis

Mounting uses the usual four-screw pattern; the 100-240V auto-ranging input removes voltage-setup errors. The 17ms hold-up time bridges brief mains dips. Mis-routing the single EPS 8-pin and 4+4 cables can starve a dual-CPU board, so verify the motherboard layout before closing the case.

How it compares

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

Price $353.99
Pricier than about 87% of the 3,798 comparable items (median $131.99).
Max wattage 1200 W
Higher than about 80% of the 235 comparable items (median 668 W).

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Specifications

Product
Brand nameAthena Power
Product linePS2
Model nameAP-PS2MK12P868
Product typeATX
Ports & slots
Output type+3.3 V, +5 V,12 V, -12 V, +5Vsb
Power
Max wattage1200 W
Power efficiency> =92%
Power supply redundancySingle
Main power connector20+4Pin
Output current+3.3 V@18A, +5 V@18A,+12 V@100A
Supply voltage100–240 V
AC input frequency47–63 Hz
Rated input current13A@110 V, 6A@ 240 V
Power hold-up time17 ms Minimum at Nominal Input Voltage
Built-in protectionOCP, OVP,
Size & build
Product dimensions(L × W × H) 158 × 150 × 86 mm / 6.22 × 5.9 × 3.4 in
Product weight5.0 lb (2.27 kg)
Environment & compliance
Humidity range20%-90%
Temperature rangeOperating: 0 °C to 50 °C on Full Load; Storage & Shipping: -20 °C to 80 °C
More details
Fan configuration2
Mean time between failures100,000 h on Maximum Load at +25 degree C

Questions about this item

Does the 158 mm length and 150 mm width fit a standard PS2 chassis?

Yes, the unit measures 158 x 150 x 86 mm, matching the standard PS2 form factor used in most server and workstation chassis.

How do I connect the 12V-2x6 GPU cable correctly, and what mistake should I avoid?

Plug the 12V-2x6 (H++) 600W connector fully into the GPU until it clicks; do not use the PCIe 6+2-pin cables for the 12V-2x6 port as they are not interchangeable.

When should I expect to replace the dual smart fans?

The MTBF is rated at 100,000 hours at maximum load and 25 °C; fan lifespan varies with temperature and duty cycle, so monitor noise and RPM for early wear signs.

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