Seasonic Focus GM-850 850W 80 PLUS Gold Semi-Modular ATX PSU
Seasonic Focus GM-850 is an 850W 80 PLUS Gold certified semi-modular ATX power supply with 90% efficiency at 50% load, 120mm fan, and 70A 12V rail for reliable PC power delivery.
Available in 4–6 business days : 8 pieces
For any questions about this item, availability, or delivery times, please contact us at 22 270068
The Seasonic Focus GM-850 is a reliable 850W semi-modular power supply featuring 80 PLUS Gold certification, delivering 90% efficiency at 50% system load and 87% efficiency at both 20% and 100% operating loads. This efficiency standard, combined with Active Power Factor Correction (PFC), significantly reduces energy waste and lowers operational costs. The unit employs an LLC resonant converter design paired with Seasonic’s Smart and Silent Fan Control (S2FC) technology, which intelligently balances thermal management with silent operation.
Built with a robust 120mm cooling fan and featuring a powerful 70A 12V rail, the GM-850 delivers stable power to demanding multi-component systems. The semi-modular design allows users to remove unnecessary cables for cleaner builds and improved airflow. With comprehensive protection features including over-current, over-voltage, and short-circuit protection, combined with a 5-year warranty, this PSU is engineered for long-term reliability and dependable performance in standard ATX form factor systems.
- 80 PLUS Gold efficiency (90% at 50% load)
- Semi-modular cabling for flexible cable management
- 120mm Smart and Silent Fan Control (S2FC)
- 70A 12V rail for high-power components
- Active Power Factor Correction (PFC)
- LLC resonant converter technology
- Multiple protection features (OCP, OVP, SCP)
- Compact ATX form factor (150 x 140 x 86mm)
| Total Power Output | 850 W |
| Efficiency Rating | 80 PLUS Gold (90% at 50% load, 87% at 20% and 100% load) |
| AC Input Voltage | 100 - 240 V |
| Input Current | 10 A Max |
| Input Frequency | 50 - 60 Hz |
| 12V Rail Maximum Power | 840 W |
| 12V Rail Maximum Current | 70 A |
| 5V Rail Maximum Power | 100 W |
| 5V Rail Maximum Current | 20 A |
| 3.3V Rail Maximum Power | 100 W |
| 3.3V Rail Maximum Current | 20 A |
| -12V Rail Maximum Power | 3.6 W |
| 5VSB Rail Maximum Power | 12.5 W |
| 5VSB Rail Maximum Current | 2.5 A |
| Cabling Type | Semi-Modular |
| Form Factor | ATX |
| Motherboard Power Connector | 20+4 pin ATX |
| CPU Power Connectors | 1x 4+4 pin EPS/ATX12V |
| PCIe GPU Power Connectors | 2x 6+2 pin PCIe |
| SATA Power Connectors | 6x SATA |
| Peripheral (Molex) Connectors | 3x 4-pin |
| Cooling Fan | 1x 120mm |
| Fan Bearing Type | Sleeve bearing |
| Fan Control | Smart and Silent Fan Control (S2FC) |
| Protection Features | Over-Current Protection (OCP), Over-Voltage Protection (OVP), Short-Circuit Protection (SCP) |
| Power Converter Design | LLC Resonant Converter |
| Power Factor Correction | Active PFC |
| Unit Dimensions (W x D x H) | 150 x 140 x 86 mm |
| Operating Temperature Range | 0 - 50 °C |
| Mean Time Between Failures (MTBF) | 100,000 hours |
| Warranty | 5 years |
| Color | Black |
| Certifications | cTUVus, TUV, CB, CCC, BSMI, CE, FCC, RoHS, WEEE, ErP Lot 6, REACH |
| Cables Included | AC power cable, PCIe cables, Peripheral (Molex) cables, SATA cables, cable ties |