ASRock
ASRock Challenger CL-550B 550W 80 PLUS Bronze Non-Modular Power Supply
A 550 W ATX power supply with 80 PLUS Bronze efficiency, a 120 mm golf-blade fan, and non-modular cables including 24 pin ATX, 8 pin EPS, two 8 pin PCIe, and four SATA connectors
- ColorBlack
- TypeATX
- Maximum Power550 W
- Fans1 x 120 mm
- ModularNon-Modular
- Energy-Efficient80 PLUS BRONZE Certified
Options ATX 80+ Bronze (550W)
- ATX 80+ Bronze (550W)
- ATX 80+ Bronze (750W)
- Delivers 550 W continuous power for stable system operation
- 80 PLUS Bronze certification reduces wasted energy and heat
- 120 mm golf-blade fan moves air quietly under load
- 5 V BOOST function maintains steady voltage on the 5 V rail
- Comprehensive safety protections guard components during power fluctuations
550 W ATX Bronze power supply
The ASRock Challenger CL-550B delivers 550 W of continuous power through a non-modular ATX design. It carries 80 PLUS Bronze certification and uses a single 120 mm golf-blade fan for cooling. A built-in 5 V boost function helps maintain stable voltage on the minor rail. The unit includes a five-year manufacturer warranty.
Entry-level builders and basic upgrades
This supply suits builders assembling a mid-range system with a single graphics card and a handful of drives. It provides one 24 pin ATX connector, one 8 pin EPS connector, two 8 pin PCIe connectors and four SATA connectors. Systems that require fully modular cabling, higher wattage headroom or more PCIe power leads should consider a different model.
Connector count and case clearance
Verify that your motherboard uses a standard 24 pin ATX and an 8 pin EPS socket. Confirm the graphics card needs no more than two 8 pin PCIe plugs. Ensure the chassis can accommodate a non-modular cable bundle and a 120 mm fan profile. Check that four SATA power plugs cover your storage devices.
Highlights
- Delivers 550 W continuous power for stable system operation
- 80 PLUS Bronze certification reduces wasted energy and heat
- 120 mm golf-blade fan moves air quietly under load
- 5 V BOOST function maintains steady voltage on the 5 V rail
- Comprehensive safety protections guard components during power fluctuations
Specifications
| Brand | ASRock |
|---|---|
| Model | CL-550B |
| Color | Black |
| Type | ATX |
| Maximum Power | 550 W |
| Fans | 1 x 120 mm |
| Modular | Non-Modular |
| Energy-Efficient | 80 PLUS BRONZE Certified |
| Connectors | 1 x 24 pin ATX / 1 x 8 pin (4+4) EPS (CPU) / 2 x 8 pin (6+2) PCIe / 4 x SATA |
| Shipping weight | 2.72 kg |
| Package size | 279 × 203 × 102 mm |
Other versions of this model
1 more in the same range
Same family, different memory, cooler or clock — compare before you commit.
Questions about this item
Will the 550 W unit supply enough power for a mid-range graphics card and a modern CPU?
The 550 W rating and 80 PLUS Bronze efficiency give headroom for typical mid-range builds with one graphics card and a current processor.
Does the non-modular cable set include the connectors my motherboard and GPU need?
The fixed cables provide one 24-pin ATX, one 8-pin EPS split as 4+4, two 8-pin PCIe split as 6+2, and four SATA plugs.
How loud is the 120 mm golf-blade fan under load?
The 120 mm golf-blade fan is designed for quiet airflow; noise stays low at typical loads and rises only when the unit approaches its maximum output.
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