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Compact SFX power supply with black ribbon cables and 80 mm fan

FSP

FSP FSP450-50SAC 450W SFX 80 Plus Bronze power supply

SKU CH-NRJK-TZME9 MPN FSP450-50SAC

A 450 W SFX power supply with 80 Plus Bronze efficiency, an 80 mm fan, single 12 V rail and black ribbon cables for SFX or ATX cases

  • Max wattage450 W
  • Modular cablingNo
  • Fan configuration1 × 80 mm
  • 12V railsSingle
  • PSU length limit125 mm
  • Efficiency certification80 PLUS BRONZE Certified

Model SFX Bronze (450W)

  • 80 Plus Bronze certification delivers up to 85% efficiency at typical load
  • Intelligent 80 mm fan adjusts speed to temperature for quiet cooling
  • DC-to-DC module design provides stable power conversion across all rails
  • SFX 125 mm form factor includes bracket for ATX and Micro-ATX cases
  • Full protection suite covers OCP OVP SCP OPP OTP for system safety

SFX 450 W power supply

The FSP FSP450-50SAC is a 450 W SFX unit built to the SFX12V 3.3 standard and certified 80 Plus Bronze. It delivers a single +12 V rail and uses an 80 mm fan with intelligent speed control for temperature-based airflow. The 125 mm housing fits SFX, Micro-ATX and Mini-ITX layouts, and an included bracket allows installation in standard ATX cases. Black ribbon cables keep the internal look clean.

Compact builds and ATX retrofits

This supply suits small-form-factor systems that need 450 W from an SFX footprint, and it also works for builders converting an ATX chassis with the bundled bracket. Buyers who need modular cabling to reduce clutter should look elsewhere, as the cables are fixed. Systems that require more than 450 W of continuous power will need a higher-capacity unit.

Straightforward fit with fixed cables

The 125 mm depth slides into most SFX bays, and the ATX bracket screws on without special tools. Because the cables are non-modular, routing the unused leads can be the only awkward step in tight chassis. The wide 100-240 V input handles global mains voltages automatically. Ensure the case allows 125 mm of PSU clearance before ordering.

How it compares

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

Price $69.99
Cheaper than about 79% 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 nameFSP
Model nameFSP450-50SAC
Product typeSFX
Power
Max wattage450 W
Modular cablingNo
12V railsSingle
Efficiency certification80 PLUS BRONZE Certified
Size & build
Shipping weight1.81 kg
Package size197 × 191 × 76 mm
Compatibility
PSU length limit125 mm
More details
Fan configuration1 × 80 mm

Other versions of this model

1 more in the same range

Questions about this item

Does my case need an SFX slot or the included ATX bracket to mount this 125 mm PSU?

The unit is 125 mm long and ships with an SFX-to-ATX adapter bracket so it fits SFX, Micro-ATX and Mini-ITX cases.

Will the fixed black ribbon cables reach the 24-pin and 8-pin connectors on an older motherboard?

All cables are fixed black ribbon type; measure your board’s connector positions against the cable lengths before buying.

How do I confirm the 80 mm fan is running intelligently after installation?

The fan should spin at low speed when the PSU is cool and ramp up as internal temperature rises.

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