FSP Hexa 85+ Pro 550W ATX 3.1 80 Plus Bronze Power Supply

The FSP Hexa 85+ Pro 550W is an ATX 3.1 compliant power supply designed for mainstream desktop builds that demand reliable, efficient power delivery. Certified 80 Plus Bronze, it achieves at least 85% efficiency under typical load, reducing wasted heat and keeping electricity costs in check compared to uncertified units. At the heart of the Hexa 85+ Pro is a +12V single-rail layout, which consolidates available amperage to meet the demands of modern discrete graphics cards without voltage drops during peak load. The +5V and +3.3V rails are powered via a DC-to-DC module, a topology that isolates these rails from the main transformer and delivers tighter voltage regulation with lower ripple noise — prolonging the lifespan of sensitive motherboard components. Japanese electrolytic capacitors are used throughout the design, a meaningful quality differentiator over units that rely on generic capacitors. These components are rated for longer operational hours and wider temperature ranges, contributing to the unit's five-year warranty coverage. Cooling is handled by a 120mm hydraulic bearing (HYB) fan paired with a ventilated fan guard. Hydraulic bearing fans offer a quieter and longer-lasting alternative to sleeve bearing designs, making this unit suitable for noise-sensitive home or office environments. The Hexa 85+ Pro 550W carries Active PFC with a power factor of 0.9 or higher, complies with ATX12V V3.1 and EPS12V V2.92 standards, and meets Energy Related ErP/EuP 2013 requirements for standby power consumption. Full protection circuitry covers over-current (OCP), over-voltage (OVP), over-power (OPP), and short-circuit (SCP) conditions. All cables are flat black ribbon type, improving airflow management inside the chassis compared to traditional sleeved or round cables. — Verified Specifications — Model: HA2-550 | Form Factor: ATX | Wattage: 550W | Certification: 80 Plus Bronze | ATX Standard: ATX12V V3.1 | EPS Standard: EPS12V V2.92 | Efficiency: ≥85% at typical load | PFC: Active PFC ≥0.9 | Input Voltage: 100–240V AC | Input Current: 7.5–3A | Input Frequency: 50–60Hz | Fan: 120mm Hydraulic Bearing (HYB) | Hold-up Time: >17ms at 80% load | Modular: Non-Modular | Capacitors: Japanese Electrolytic | Warranty: 5 Years — Connector Inventory — MB 20+4 Pin: 1 | CPU 4+4 Pin: 2 | PCIe 6+2 Pin: 2 | SATA: 8 | Molex/Peripheral 4-Pin: 2 | Floppy: 1 — Protection Suite — OCP, OVP, OPP, SCP