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Silver ATX power supply, 150 mm long, 135 mm fan, fully modular cables

Montech Open box

Montech Century II 1200 1200 W ATX 3.1 power supply

SKU CH-WY0M-59K0Y MPN Century II 1200

Full-modular 1200 W ATX 3.1 unit with 135 mm FDB fan, 100 % Japanese capacitors, 80 Plus Gold and Cybenetics Platinum efficiency, six PCIe 6+2-pin and twelve SATA connectors

  • Max wattage1200 W
  • Modular cablingFull Modular
  • Fan configuration1 × 135 mm
  • Main power connector20+4Pin
  • PCIe power connectors6 × 6+2-Pin
  • SATA power connectors12
  • ATX 3.1 and PCIe 5.1 ready with included 12V-2x6 cable
  • 80 Plus Gold and Cybenetics Platinum certified for high efficiency
  • 100% Japanese capacitors provide reliable long-term operation
  • 135 mm FDB fan with zero-RPM mode keeps noise low
  • Fully modular design with 6 PCIe and 12 SATA connectors

ATX 3.1 power supply for high-wattage builds

This 1200 W unit targets system builders who need ATX 3.1 compliance and PCIe 5.1 readiness for current and upcoming platforms. The fully modular design keeps cable clutter to a minimum inside the case. A 135 mm FDB fan with zero RPM mode stays silent at low loads. Japanese capacitors are used throughout for long-term reliability.

Single 12 V rail delivers 100 A at 1200 W

The +12 V rail is rated for 100 A and can supply the full 1200 W, so one rail feeds every GPU and CPU connector without multi-rail balancing. Minor rails provide 20 A on +3.3 V and +5 V combined to 120 W, while -12 V and +5 VSB handle 0.3 A and 3 A respectively. 80 PLUS Gold and Cybenetics Platinum ratings confirm high efficiency across the load range.

150 mm depth fits standard ATX bays

At 150 mm long the unit slides into most mid-tower and full-tower chassis without clearance issues. Six 6+2-pin PCIe connectors and twelve SATA power plugs support multi-GPU arrays and large storage counts. The 12V-2x6 cable is included for native PCIe 5.1 graphics cards. Full modularity lets you connect only the cables your build requires.

How it compares

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

Price $120.99
Cheaper than about 58% 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).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameMontech
Model nameCentury II 1200
Product colorSilver
Product typeATX / ATX 3.1
Ports & slots
PCIe power connectors6 × 6+2-Pin
SATA power connectors12
Output typeDC Output: +3.3 V +5 V +12 V -12 V +5VSB
Max. Output Current: 20A 20A 100A 0.3A 3A
Max. Output Power: 120 W 1200 W 3.6 W 15 W
Power
Max wattage1200 W
Modular cablingFull Modular
Main power connector20+4Pin
Efficiency certification80 PLUS GOLD Certified
Rated input current100-240Vac 50-60 Hz 15A-10A
Size & build
Shipping weight2.95 kg
Package size297 × 226 × 124 mm
Compatibility
PSU length limit150 mm
More details
Fan configuration1 × 135 mm

Questions about this item

What does the 1200 W rating mean for a built system?

The unit can deliver up to 1200 W of continuous DC power across its rails, with the +12 V rail rated for 100 A and the minor rails limited to 120 W combined.

What does the ATX 3.1 label cap in practice?

ATX 3.1 compliance means the PSU meets the latest transient-response and timing requirements and includes a 12V-2x6 cable for modern graphics cards.

Will the 150 mm depth fit in my case?

The power supply is 150 mm long, so it fits any chassis that lists clearance for units of that length or greater.

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