GAMDIAS Helios M1-850B 850W 80+ Bronze Non Modular Power Supply

The GAMDIAS Helios M1-850B is an 850-watt ATX12V v2.4 power supply unit rated at 80 PLUS Bronze efficiency, making it a solid foundation for mid-range to high-performance desktop builds. Designed for builders who want reliable, no-frills power delivery, the Helios M1-850B comes in a stealthy all-black finish with flat, flexible black cables that simplify routing inside the case and help maintain healthy airflow. Power factor correction is handled by an Active PFC (APFC) circuit rated at a power factor value of 0.99, which means the unit draws cleaner, more efficient power from the wall socket — a meaningful advantage for both system stability and long-term electrical health. The PSU supports Intel C6 and C7 low-power processor states, allowing the platform to enter deep sleep modes without power-delivery issues, a requirement for modern ATX-compliant builds. The thermal management system uses automatic fan speed optimisation, adjusting rotational speed based on internal temperature and load rather than running at a fixed, noisy speed — contributing to quieter operation during lighter workloads. The unit does not feature a passive or silent zero-RPM mode, so the fan remains active under all loads. Seven hardware protection circuits — Over Voltage Protection (OVP), Under Voltage Protection (UVP), Over Power Protection (OPP), Over Current Protection (OCP), Short Circuit Protection (SCP), Surge Protection (SP), and Inrush Current Protection (ICP) — guard connected components against electrical faults. The non-modular cable set includes all connectors permanently attached, keeping costs low and ensuring a secure, direct connection from PSU to component without intermediary connectors. Key Specifications: – Model: HELIOS M1-850B – Total Output Power: 850 W – Form Factor / Standard: ATX12V v2.4 – Efficiency: 80 PLUS Bronze – Power Factor Correction: APFC, PF 0.99 – AC Input: 100–240 V / 5.5–11 A / 47–63 Hz – Max. Output Current: +3.3 V: 20 A / +5 V: 20 A / +12 V: 70 A / -12 V: 0.3 A / +5 Vsb: 2.5 A – Max. Combined Output Power: +3.3 V & +5 V: 130 W; +12 V: 840 W; -12 V: 3.6 W; +5 Vsb: 12.5 W – Main Power Connector: 1 × 20+4 Pin – CPU Power: 2 × 4+4 Pin – PCI-E: 4 × 6+2 Pin – SATA: 6 × 15-Pin – Molex: 4 × 4-Pin – Modular: Non-Modular (flat cables) – DC-to-DC Conversion: Yes – Protection: OVP, UVP, OPP, OCP, SCP, SP, ICP – Dimensions (L × W × H): 140 × 150 × 86 mm – Warranty: 3 Years