Asrock CL-550B 550W 80 Plus Bronze PSU

Asrock CL-550B is an ATX power supply with 550W power and 80+ Bronze certification, aimed at budget and mid-range gaming and office configurations. It comfortably supports standard systems with one graphics card and several drives, without paying extra for unnecessary watts. Active PFC and efficiency up to 85% provide you with more stable operation and less energy loss. The compact length of 140 mm makes installation easier even in shorter cases.

What you get is a stable ATX power supply with all the necessary connectors for a mass gaming or work build: 24-pin for the motherboard, 4+4-pin EPS for CPU, and two PCIe 6+2-pin for powering a separate graphics card. With four SATA connectors, you can easily connect SSDs, HDDs, and possibly an optical drive or additional accessories. A 120mm fan handles cooling, and in most configurations, it will operate relatively quietly under normal load. The wide input range of 100–240 VAC is a plus if you move it or use it in different electrical installations.

• Power 550W – sufficient for a typical gaming or office configuration with one mid-range GPU and several storage devices.
• 80+ Bronze certification with efficiency up to 85% – less energy loss and lower heating compared to basic non-certified models.
• ATX format and length 140 mm – standard compatibility with most cases and easier cable management in more compact chassis.
• Active PFC – better control over power from the grid and more stable voltages on DC 3.3/5/±12 V lines.
• Two PCIe 6+2-pin connectors – allows powering a separate graphics card, including models with dual PCIe power input.
• Four SATA and two 4-pin Peripheral connectors – enough for several SSDs/HDDs, fan hubs, or older peripheral devices.
• 120mm fan and non-modular cables – simpler design, fewer potential problem points, and stable cooling.
• Color: black and no RGB – clean appearance, suitable for simple builds without lighting effects.
• Warranty 60 months – long coverage period, which is important for components like PSU.

This power supply is suitable if you are building a budget or mid-range gaming computer, office machine, or home multimedia PC without extreme requirements for GPU and overclocking. It is a good choice for one graphics card, several drives, and standard load. If you plan to use a high-end GPU with a high consumption profile and heavy overclocking, it is better to look for higher power.

The combination of 550W, 80+ Bronze, Active PFC, and the full set of connectors for a serious card makes Asrock CL-550B a practical and balanced option for mass builds. The most sensible aspect here is the simple, standard ATX design with a long 5-year warranty, without unnecessary extras, but with what you actually need.