COOLER MASTER MWE 550 V2 550W 80+ Bronze Non Modular ATX 2.0 Power Supply

The Cooler Master MWE 550 V2 is a 550-watt ATX power supply built around the MWE Bronze series, designed to deliver stable, efficient power for mainstream desktop builds. Holding an 80 PLUS Bronze certification, it achieves up to 85% typical efficiency, which reduces heat output and operating costs compared to uncertified units. The unit complies with the ATX 12V V2.52 standard and meets ERP 2014 Lot 3 requirements, reflecting Cooler Master’s commitment to modern energy standards. At the heart of the MWE 550 V2 is a DC-to-DC circuit design that generates the 3.3V and 5V rails from the 12V rail, improving cross-load regulation and voltage stability for sensitive components such as CPUs and storage drives. Active Power Factor Correction (Active PFC) ensures efficient use of incoming AC power across the full 100–240V universal input range at 50–60Hz, making it compatible with Indian household and UPS power infrastructure. Cooling is handled by a 120mm Hydrodynamic Bearing (HDB) fan, which spins at up to 1500 RPM. Noise output is measured at just 11.13 dBA at 20% load, rising to 15.6 dBA at 50% load, and 31.0 dBA at full load — quiet enough for home office and study environments. The flat, black cable set reduces clutter inside the chassis, aiding airflow even in compact mid-tower cases. Five protection circuits are built in — Over Voltage Protection (OVP), Over Power Protection (OPP), Short Circuit Protection (SCP), Under Voltage Protection (UVP), and Over Temperature Protection (OTP) — safeguarding connected components under fault conditions. The MTBF rating exceeds 100,000 hours, and a rated operating temperature of 40°C confirms suitability for India’s warmer ambient conditions. Connectivity includes one ATX 24-pin connector, one EPS 4+4-pin CPU connector, two PCIe 6+2-pin connectors, six SATA connectors, and four peripheral 4-pin connectors — adequate for a single-GPU gaming or workstation build. Dimensions are 140 × 150 × 86 mm (L × W × H), fitting standard ATX cases. Cooler Master backs this unit with a 5-year warranty. Verified Specifications: • Wattage: 550W • ATX Standard: ATX 12V V2.52 • 80 PLUS Rating: Bronze (85% typically) • PFC: Active • Input Voltage: 100–240V / 50–60Hz • Input Current: 8–4A • Fan: 120mm HDB, max 1500 RPM • Noise: 11.13 dBA (20%) / 15.6 dBA (50%) / 31.0 dBA (100%) • Dimensions: 140 × 150 × 86 mm • Protections: OVP, OPP, SCP, UVP, OTP • MTBF: >100,000 hours • Operating Temp: up to 40°C • Connectors: 1× ATX 24-pin, 1× EPS 4+4-pin, 2× PCIe 6+2-pin, 6× SATA, 4× Peripheral 4-pin • Modular: Non-Modular • Warranty: 5 Years • Regulatory: CCC, CE, TUV-RH, RCM, EAC, cTUVus, FCC, BSMI, KC, CB