Seasonic CORE GX-850 - 850W 80 PLUS Gold Fully Modular ATX 3.1 PCIe 5.1 PSU (Black)
850W 80 PLUS Gold fully modular ATX 3.1 & PCIe 5.1 PSU with 1x 12V-2x6 + 3x 6+2-pin PCIe, 120mm HDB fan, braided cables, OptiSink tech & 7-year warranty. Compact 140mm depth for easy builds.
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Discontinued
This item was discontinued and currently is not available for order on our website. The item may become available soon. Please contact us if you need more information regarding the upcoming arrivals.
| PSU (Power Supplies) - Wattage | 800 - 899 W |
|---|---|
| PSU (Power Supplies) - Efficiency Rating | 80 Plus Gold |
| PSU (Power Supplies) - Color | Black |
| PSU (Power Supplies) - Modularity | Fully modular |
| PSU (Power Supplies) - PCIe GPU Connectors | 1x 12V-2x6 3x 8/6 pins |
| PSU (Power Supplies) - Length | 141-160 mm |
| PSU (Power Supplies) - EPS CPU Connectors | 2x 4+4pin EPS/ATX12V |
The Seasonic CORE GX-850 ATX 3.1 complies with latest standards, delivering 850W with 80 PLUS Gold efficiency (up to 93% peak). Fully modular black braided cables simplify builds in tight spaces. Features 120mm Hydro Dynamic Bearing fan with Smart & Silent control for optimal cooling and low noise.
ATX 3.1 / PCIe 5.1 ready with 1x 12V-2x6 (600W) connector for modern GPUs like RTX 5080 plus 3x 6+2-pin PCIe. Single +12V rail (70A/840W), OptiSink design improves heat dissipation 8x via optimized PCB layout. Premium Japanese capacitors ensure reliability; backed by 7-year warranty.
- ✅ 80 PLUS Gold certified (91-93% efficiency)
- ✅ Fully modular w/ braided cables
- ✅ 1x 12V-2x6 + 3x PCIe 6+2-pin
- ✅ 120mm HDB fan, quiet operation
- ✅ Compact 140mm depth, active cooling
- ✅ Full protections: OCP/OVP/OPP/OTP/SCP
| Total power | 850 W |
| AC input voltage | 100 - 240 V |
| AC input frequency | 50/60 Hz |
| Input current | 9 A |
| Combined power (+3.3V) | 100 W |
| Combined power (+12V) | 840 W |
| Combined power (+5Vsb) | 15 W |
| Max output current (+3.3V) | 20 A |
| Max output current (+12V) | 70 A |
| Max output current (+5V) | 20 A |
| Max output current (+5Vsb) | 3 A |
| Power protection features | Over current, Over power, Under voltage, Over total voltage, Over voltage, Short circuit, Over temperature |
| 80 PLUS certification | 80 PLUS Gold |
| Purpose | PC |
| Power supply unit (PSU) form factor | ATX |
| ATX version | 3.1 |
| Mean time between failures (MTBF) | 100000 h |
| Product colour | Black |
| Cooling type | Active |
| Fan diameter | 12 cm |
| Number of fans | 1 fan(s) |
| On/off switch | Yes |
| Operating temperature (T-T) | 0 - 50 °C |
| Cables included | AC, CPU (4+4 pin), PCIe (12V-2x6 x1, 6+2-pin x3), SATA, Peripheral (Molex) |
| Certification | 80 PLUS Gold, BSMI, C-tick, CB, CCC, CE, cTUVus, EAC, FCC, TUV, UKCA |
| Width | 150 mm |
| Depth | 140 mm |
| Height | 86 mm |
| Package type | Box |
| PCIe connectors | 1x 12V-2x6 (600W), 3x 6+2-pin |
| EPS/ATX12V connectors | 2x 4+4-pin |
| Warranty | 7 years |