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Black rectangular ATX power supply unit with semi-modular cables and 120 mm fan

NZXT

NZXT PA-6B1BB-US C650 650 W power supply

SKU CH-RWF1-XGPPW MPN PA-6B1BB-US

Semi-modular 650 W ATX power supply with 80 PLUS Bronze efficiency, a 120 mm FDB fan, four PCIe 6+2-pin connectors and six SATA connectors

  • Max wattage650 W
  • Modular cablingSemi-Modular
  • Fan configuration1 × 120 mm FDB fan
  • Power factor correctionActive
  • Main power connector24Pin
  • 12V railsSingle
  • Semi-modular cables simplify builds with only essential leads attached
  • 80 PLUS Bronze certification delivers efficient power conversion at 650 W
  • Single +12 V rail provides stable output for modern GPUs
  • Four 6+2-pin PCIe connectors support dual graphics cards
  • 120 mm FDB fan runs quietly with fluid-dynamic bearings

NZXT C650 650 W ATX power supply

The NZXT C650 is a 650 W ATX12V v2.4 power supply with an 80 PLUS Bronze rating. Its semi-modular design lets builders attach only the cables they need for a cleaner interior. A single +12 V rail delivers the full 650 W to components. The unit measures 140 mm deep and fits standard ATX cases.

Semi-modular cabling and single-rail layout

Two 4+4-pin EPS cables and four 6+2-pin PCIe cables are pre-attached, while SATA and peripheral cables can be added as required. This reduces clutter and improves airflow around the motherboard and graphics card. The 120 mm FDB fan runs quietly under typical loads. Active PFC corrects the power factor across the 115 V to 230 V input range.

650 W capacity with Bronze efficiency

The 650 W output handles mid-range graphics cards and modern CPUs with headroom for drives and peripherals. Bronze certification means at least 80 % efficiency at 20 %, 50 % and 100 % load. Builds with multiple high-power GPUs or extreme overclocks will exceed this unit’s rating. MTBF exceeds 100,000 hours for long-term reliability.

How it compares

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

Price $64.99
Cheaper than about 82% 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 nameNZXT
Model nameC650
Part numberPA-5B1BB-US
Product typeATX12 V v2.4 / EPS12 V v2.92
Product colorBlack
Ports & slots
PCIe power connectors4 × 6+2-Pin
SATA power connectors6
Connection types1 × 24 pin ATX
2 × 8 pin (4+4) EPS (CPU)
4 × 8 pin (6+2) PCIe
6 x SATA
3 × 4 pin Peripheral
Power
Max wattage650 W
Modular cablingSemi-Modular
Power factor correctionActive
Main power connector24Pin
12V railsSingle
Efficiency certification80 PLUS BRONZE Certified
Supply voltage115 / 230 V
AC input frequency47–63 Hz
Rated input current10–5 A
Size & build
Product dimensions3.39 in × 5.91 in × 5.51 in
Shipping weight2.36 kg
Package size315 × 224 × 112 mm
Compatibility
PSU length limit140 mm
In the box
Included itemsNZXT C650 Bronze PSU
24-pin ATX power (550 mm)
2 × 4+4-Pin CPU Power Cables
2 × 6+2-pin PCIe Power Cable
2 x SATA Cable
Peripherals Cable
4 × 6-32 Screws
Environment & compliance
Regulatory approvalsCB / CE / FCC / TUV / cTUV-SUDus / China CCC / Taiwan BSMI R33245/ Australia RCM / EAC / UKCA / WEEE
More details
Fan configuration1 × 120 mm FDB fan
Mean time between failures>100,000 h

Questions about this item

Will the 650 W capacity and single +12 V rail support a modern mid-range graphics card?

The unit delivers 650 W on a single +12 V rail with four 6+2-pin PCIe connectors, which matches the typical power and cabling needs of many mid-range GPUs.

Is the semi-modular cable set long enough for a standard ATX tower?

The fixed 24-pin ATX cable is 550 mm and the two included CPU and PCIe cables are sized for typical ATX chassis layouts.

What extra cables come in the box besides the fixed 24-pin ATX lead?

The package includes two 4+4-pin CPU cables, two 6+2-pin PCIe cables, two SATA cables, one peripheral cable and four mounting screws.

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