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Black rectangular ATX power supply with fully modular cable sockets and a single cooling fan

ASUS

ASUS TUF-GAMING-1200G 1200W ATX 3.0 power supply

SKU CH-DYHM-NR5CK MPN TUF-GAMING-1200G

Fully modular 1200 W ATX 3.0 unit with dual 16-pin PCIe Gen 5 connectors, 80 Plus Gold efficiency and military-grade capacitors

  • Max wattage1200 W
  • Modular cablingFull Modular
  • Power factor correctionActive
  • PSU length limit150 mm
  • Efficiency certification80 PLUS GOLD Certified
  • Built-in protectionOPP/OVP/UVP/SCP/OCP/OTP
  • ATX 3.0 support delivers up to 600 W to PCIe Gen 5.0 graphics cards
  • 80 Plus Gold efficiency from Japanese capacitors cuts waste heat and electricity cost
  • Military-grade capacitors and chokes pass demanding tests for long-term reliability
  • Dual ball bearing fan lasts up to twice as long as sleeve bearing designs
  • Fully modular etched cables keep the build tidy and improve airflow

ATX 3.0 1200 W power supply

The ASUS TUF-GAMING-1200G is a fully modular ATX 3.0 unit rated for 1200 W continuous output. It carries 80 Plus Gold certification and uses Japanese capacitors alongside military-grade chokes. The design targets builders who need reliable high-wattage delivery for modern graphics cards and multi-core processors.

Fully modular cable set and Gen 5 connectors

Two native PCIe Gen 5 16-pin cables each support up to 600 W, removing the need for adapters on current flagship GPUs. Additional PCIe 8-pin, CPU 4+4-pin, SATA and peripheral cables are all detachable, so only the required leads stay in the case. The 150 mm depth fits standard ATX layouts while freeing space behind the motherboard tray for cable routing.

Axial-tech fan, dual ball bearings

An Axial-tech fan with a reduced hub and barrier ring increases downward air pressure across the PCB. Dual ball bearings extend fan lifespan compared with sleeve designs. A conformal coating shields the board from moisture, dust and temperature extremes. Active PFC handles 100–240 V input, while OPP, OVP, UVP, SCP, OCP and OTP protections guard connected hardware.

How it compares

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

Price $184.99
Pricier than about 60% of the 10,869 comparable items (median $142.99).
Max wattage 1200 W
Higher than about 90% of the 930 comparable items (median 850 W).

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Specifications

Product
Brand nameASUS
Model nameTUF-GAMING-1200G
Product typeATX12 V
Ports & slots
Output type+3.3 V@25A, +5 V@25A, +12 V@99A, +5VSB@3A
Connection typesMB 24/20-pin x 1
CPU 4+4-pin x 2
PCI-E 16-pin x 2 (both PSU & component side)
PCI-E 8-pin x 3
SATA x 5
PERIPHERAL x 4
Power
Max wattage1200 W
Modular cablingFull Modular
Power factor correctionActive
Efficiency certification80 PLUS GOLD Certified
Built-in protectionOPP/OVP/UVP/SCP/OCP/OTP
Supply voltage100–240 V
Size & build
Product dimensions150 × 150 × 86 mm
Product weight2.66 kg
Shipping weight3.35 kg
Package size310 × 200 × 108 mm
Compatibility
PSU length limit150 mm

Questions about this item

Does the 1200 W unit hit its 99 A +12 V rail limit before the total wattage cap during sustained loads?

The +12 V rail is rated for 99 A, and the total capacity is 1200 W.

How much fan noise and heat should I expect when the PSU runs all day at high load?

The Axial-tech fan uses dual ball bearings and a barrier ring for downward pressure; the protective PCB coating guards against dust and moisture during continuous operation.

What cables must already be in my case for the bundled 16-pin PCIe Gen 5 connectors to work?

The box includes two PCI-E Gen 5 16-pin cables (675 mm), one 16-pin to dual 8-pin cable (675 mm), and one 1-to-1 16-pin cable (675 mm) for direct GPU connection.

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