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Black fully modular ATX power supply with 120 mm fan, 140 mm depth

Phanteks

Phanteks PH-P1000G Amp 1000 W power supply

SKU CH-HTY8-TGYRX MPN PH-P1000G

A fully modular ATX power supply delivering 1000 W with 80 PLUS Gold efficiency and a 120 mm fluid dynamic bearing fan

  • Max wattage1000 W
  • Modular cablingFull Modular
  • Fan configuration1 × 120 mm
  • Main power connector20+4Pin
  • 12V railsSingle
  • PSU length limit140 mm

Model ATX 80+ Gold (1000W)

  • Full modular design simplifies cable management for cleaner builds
  • 80 PLUS Gold certification reduces wasted energy under typical loads
  • Single +12V rail provides 83 A for high-power components
  • 120 mm fluid dynamic bearing fan stays off below 40 percent load
  • Compact 140 mm depth fits smaller cases without sacrificing output

Phanteks Amp 1000 W Power Supply

This fully modular ATX12V unit delivers 1000 W for high-end desktop builds. It targets enthusiasts who need reliable power for multi-GPU configurations and compact cases. The 140 mm depth helps it fit tight layouts without sacrificing output.

Single +12 V Rail at 83 A

The 12 V rail supplies up to 83 A, which determines whether the PSU can handle your graphics cards and CPU together. Gold certification means 80 PLUS GOLD efficiency at typical loads. Active PFC corrects the power factor across the 100 to 240 V input range.

Full Modular Cabling and Fanless Mode

All cables detach, so you only route what the build requires. A 120 mm fluid dynamic bearing fan stays off below 40 percent load for silent operation. Ensure the case allows 140 mm PSU length and that your motherboard uses a 20+4 pin main connector.

How it compares

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

Price $113.99
Cheaper than about 61% of the 10,869 comparable items (median $142.99).
Max wattage 1000 W
Higher than about 70% of the 930 comparable items (median 850 W).

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Specifications

Product
Brand namePhanteks
Product lineAmp
Model namePH-P1000G
Product colorBlack
Product typeATX12 V
Graphics
SLI supportNo
CrossFire supportNo
Ports & slots
Output type+3.3 V@25A, +5 V@25A, +12 V@83A, +5VSB@3A
SATA power connectors6
Power
Max wattage1000 W
Modular cablingFull Modular
Main power connector20+4Pin
12V railsSingle
Efficiency certification80 PLUS GOLD Certified
Supply voltage100–240 V
AC input frequency50/60 Hz
Rated input current13–6.5 A
Power factor correctionActive
Size & build
Product dimensions3.3 in × 5.9 in × 5.5 in
Shipping weight3.05 kg
Package size312 × 183 × 119 mm
Compatibility
PSU length limit140 mm
More details
Fan configuration1 × 120 mm
Mean time between failures>100,000 h

Other versions of this model

2 more in the same range

Questions about this item

What does the 1000 W rating mean once the unit is installed in a system?

The 1000 W figure is the maximum continuous power the unit can deliver across all rails combined, with the single +12 V rail capable of supplying up to 83 A for CPU and GPU loads.

What does the 80 PLUS Gold certification cap in practice?

80 PLUS Gold certifies that the PSU meets defined efficiency targets at 20 %, 50 % and 100 % load when fed from 100‑240 V mains, reducing waste heat and electricity cost.

What clearance does the 140 mm depth require in the case?

The power supply is 140 mm deep, so the case must provide at least that much usable length behind the motherboard tray for the unit and its modular cables.

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