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Rectangular ATX power supply unit in matte black finish with yellow TUF branding, non-modular sleeved cables visible

ASUS

ASUS TUF GAMING 450B 450 W power supply

SKU CH-P21S-N5F3Y MPN TUF GAMING 450B

A 450 W ATX power supply with 80 PLUS Bronze efficiency, a 135 mm dual ball-bearing fan, two PCIe 6+2-pin connectors and five SATA power plugs

  • Max wattage450 W
  • Modular cablingNon-Modular
  • Fan configuration1 × 135 mm Dual Ball Fan Bearing Fan
  • Main power connector20+4Pin
  • 12V railsSingle
  • PCIe power connectors2 × 6+2-Pin

Model ATX 80+ Bronze (450W)

  • Efficient power delivery backed by 80 PLUS Bronze certification
  • Quiet operation at low loads with 0dB fan technology
  • Extended fan lifespan using dual ball bearings
  • Military-grade component validation for capacitors and chokes
  • Compact 150 mm length fits smaller ATX cases

Built for mid-range gaming builds

The ASUS TUF GAMING 450B is a 450 W ATX12V power supply with a single +12 V rail and 80 PLUS Bronze certification. A 135 mm dual ball bearing fan uses Axial-tech design and 0dB technology to stay quiet under light loads. Non-modular cabling includes a 20+4 pin main connector, one 4+4 pin CPU lead, two 6+2 pin PCIe plugs, five SATA and four peripheral connectors.

Suits entry-level systems, not high-end GPUs

This unit fits builds that draw up to 450 W and need only two PCIe power connectors. The 150 mm length works in most standard cases. Systems requiring more than two graphics power cables, modular cables or a higher wattage ceiling should consider a larger model.

450 W maximum power decides fit

The 450 W rating sets the hard limit for total system draw. If your components combined exceed this figure, the supply cannot deliver stable power and a higher-rated unit is required.

How it compares

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

Price $57.99
Cheaper than about 87% of the 10,869 comparable items (median $142.99).
Max wattage 450 W
Lower than about 86% of the 930 comparable items (median 850 W).

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Specifications

Product
Brand nameASUS
Product lineTUF GAMING
Model nameTUF GAMING 450B
Product typeATX12 V
Graphics
SLI supportNo
CrossFire supportNo
Ports & slots
PCIe power connectors2 × 6+2-Pin
SATA power connectors5
Output type+3.3 V@20A, +5 V@20A, +5VSB@3A
Connection types1 x MB 24/20-pin
1 x CPU 4+4-pin
2 x PCI-E 6+2-pin
5 x SATA
4 x Peripheral
Power
Max wattage450 W
Modular cablingNon-Modular
Main power connector20+4Pin
12V railsSingle
Efficiency certification80 PLUS BRONZE Certified
Built-in protectionOPP / OVP / UVP / SCP / OCP / OTP
Supply voltage100–240 V
AC input frequency47–63 Hz
Rated input current7.5A
Power factor correctionNo
Size & build
Product dimensions3.39 in × 5.91 in × 5.91 in
Shipping weight2.50 kg
Package size295 × 203 × 112 mm
Compatibility
PSU length limit150 mm
Environment & compliance
Regulatory approvalsRoHS
More details
Fan configuration1 × 135 mm Dual Ball Fan Bearing Fan

Other versions of this model

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