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Bronze rectangular ATX power supply with single 120 mm fan and modular cable sockets

Montech

Montech BETA 2 650W power supply

SKU CH-3YZQ-NPFM1 MPN BETA 2 650W

ATX 3.1 ready 650 W unit with 80 Plus Bronze efficiency, DC-to-DC topology and Japanese main capacitor for stable power delivery

  • Max wattage650 W
  • Fan configuration1 × 120 mm
  • Efficiency certification80 PLUS BRONZE Certified
  • Built-in protectionOPP, OVP, UVP, OCP, OTP, SCP
  • Connection typesM/B 20+4Pin: 1 (20+4 Pins) CPU 4+4Pin: 2 (4+4 Pins) PCIE 6+2
  • Product colorBronze

Wattage 650W

  • ATX 3.1 readiness handles 200% system and 300% GPU power spikes
  • DC-to-DC topology delivers tighter voltage regulation for stable component power
  • Japanese main capacitor provides superior heat resistance and ripple suppression
  • 80 PLUS Bronze certification achieves over 85% efficiency at typical loads
  • Six-point protection suite includes OPP, OVP, UVP, OCP, OTP, SCP

ATX 3.1 Ready 650 W unit

The Montech BETA 2 650W is an ATX power supply rated at 650 W. It meets the ATX 3.1 Ready specification, supporting 200% total system peak wattage and 300% GPU power excursions. A single 120 mm fan handles cooling while 80 PLUS BRONZE certification guarantees at least 85% efficiency at typical load. DC-to-DC topology and a Japanese main capacitor provide tight voltage regulation and long-term reliability.

Mid-range builds with one graphics card

This unit suits builders assembling a system with a single GPU and standard storage counts. Two CPU 4+4-pin and two PCIe 6+2-pin connectors cover typical mid-range configurations. Four SATA and four Molex connectors support multiple drives and accessories. Builds requiring more than two PCIe power cables or higher continuous wattage should look at a larger model.

Two PCIe 6+2-pin connectors

The decisive specification is the pair of PCIe 6+2-pin cables. They limit the power supply to graphics cards that draw no more than two such connectors. If your chosen GPU needs three or more PCIe power inputs, this unit cannot support it.

How it compares

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

Price $48.99
Cheaper than about 91% of the 10,869 comparable items (median $142.99).
Max wattage 650 W
Lower than about 70% of the 930 comparable items (median 850 W).

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Specifications

Product
Brand nameMontech
Model nameBETA 2 650 W
Part numberBETA 2 650 W
Product colorBronze
Product typeATX
Ports & slots
Connection typesM/B 20+4Pin: 1 (20+4 Pins)
CPU 4+4Pin: 2 (4+4 Pins)
PCIE 6+2: 2 (6+2 Pins)
SATA: 4
Molex 4Pin: 4
Power
Max wattage650 W
Efficiency certification80 PLUS BRONZE Certified
Built-in protectionOPP, OVP, UVP, OCP, OTP, SCP
Size & build
Product dimensions140 × 150 × 86 mm
Shipping weight1.81 kg
Package size254 × 201 × 102 mm
More details
Fan configuration1 × 120 mm

Other versions of this model

3 more in the same range

Questions about this item

Will 650 W handle transient spikes from a modern GPU?

The unit is ATX 3.1 ready and rated for 200% total system peak wattage and 300% GPU power excursions, so short bursts well above 650 W are within spec.

What does the 80 PLUS BRONZE badge guarantee for this PSU?

It certifies over 85% efficiency at typical loads, meaning less waste heat and lower running costs than an uncertified unit.

Will the 140 x 150 x 86 mm case fit in a standard ATX chassis?

Yes, those are standard ATX dimensions and the single 120 mm fan mounts in the usual bottom or top position.

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