Cooler Master MWE 550 V3 ATX 3.1 230V 80 Plus Bronze SMPS

The Cooler Master MWE 550 V3 is a 550-watt ATX form-factor power supply designed for mainstream desktop PC builds that demand reliable, efficient power delivery without unnecessary complexity. Compliant with the ATX 12V Ver. 3.1 specification, it can handle peak power loads up to 1.5 times its rated wattage, making it well-suited for pairing with modern graphics cards including the NVIDIA 40-series lineup. Efficiency is at the core of this unit. Carrying an 80 Plus Bronze certification for 230V operation, it achieves greater than 88% efficiency at typical load conditions, meaning less energy is wasted as heat and your electricity costs stay lower over time. The Active PFC circuit further ensures stable power factor correction across the supported 200–240V input voltage range at 50–60 Hz. Cooling is handled by a 120mm fan using a hydrodynamic bearing (HDB) design. HDB fans are known for quieter operation and longer service life compared to conventional sleeve-bearing fans, keeping noise levels manageable even during sustained workloads. The unit is rated for operation between 0°C and 40°C ambient temperature. The MWE 550 V3 ships with a fixed, non-modular cable set. Connectivity includes one ATX 24-pin motherboard connector, two EPS 8-pin / 4+4-pin CPU power connectors, two PCIe 6+2-pin graphics connectors, six SATA power connectors, and three peripheral 4-pin (Molex) connectors — a practical spread for mid-range systems. Protection circuitry covers under-voltage protection (UVP), over-voltage protection (OVP), over-power protection (OPP), over-temperature protection (OTP), and short-circuit protection (SCP). The declared MTBF exceeds 100,000 hours, and Cooler Master backs the unit with a 5-year warranty. Verified Specifications: • Model: MPE-5501-ACABW-3BIN • Rated Output: 550W • ATX Standard: ATX 12V Ver. 3.1 • Input Voltage: 200–240V AC, 5A, 50–60 Hz • Efficiency: >88% at typical load (80 Plus Bronze EU 230V) • PFC: Active • Fan: 120mm HDB • Form Factor: ATX (140 × 150 × 86 mm) • Modular: Non-modular • Connectors: 1× ATX 24-pin, 2× EPS 8-pin/4+4-pin, 2× PCIe 6+2-pin, 6× SATA, 3× Peripheral 4-pin • Protections: UVP, OVP, OPP, OTP, SCP • Operating Temperature: 0–40°C • MTBF: >100,000 hours • Hold-Up Time: >16 ms • ErP 2014 Lot 3: Yes • Certifications: TUV, CE, FCC, CCC, EAC, RCM, UKCA, RoHS 2.0, BIS, KC (region-dependent) • Color: Black • GTIN: 4719512082522 • Warranty: 5 years