Seasonic CORE GX ATX3 850W 80 PLUS Gold Fully Modular Power Supply Unit Black
£109.38 inc VAT
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About This Item
- 850 W total power with 80 PLUS Gold certification
- ATX 3.1 and PCIe 5.1 compliant for modern systems
- Fully modular cabling for easy installation and cable management
- Active 12 cm fan with Smart and Silent Fan Control for optimal cooling
- Comprehensive power protection features including OVP, OPP, SCP
- Black finish for a sleek aesthetic
- 7-year worldwide manufacturer’s warranty
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Seasonic CORE GX – Powering Modern Rigs
We are pleased to offer the Seasonic CORE GX ATX3 850W 80 PLUS Gold Fully Modular Power Supply Unit Black for PC builders who demand reliable and efficient power. This unit is ideal for enthusiasts creating a high-performance system. Its robust design ensures stable power delivery for demanding components.
Core Performance Metrics
| Metric | Spec. |
|---|---|
| Total Power | 850 W |
| 80 PLUS | Gold |
| ATX Version | 3.1 |
| Fan Diameter | 12 cm |
| Form Factor | ATX |
| MTBF | 100000 h |
Advanced Power Standards
This power supply complies with the latest ATX 3.1 and PCIe 5.1 standards. This ensures compatibility with current and future hardware generations. Your system benefits from cutting-edge power delivery technology.
Optimised Internal Construction
Seasonic’s OptiSink design incorporates a new PCB layout. Automated surface mount technology minimises production errors. This refined internal structure enhances both reliability and overall performance.
Enhanced Thermal Management
A redesigned PCB, alongside smaller MOSFETs and heatsinks, increases internal air space. This improved design enhances heat dissipation and airflow. Your power supply runs cooler, promoting component longevity.
Flexible Cable Management
Our fully modular design allows you to connect only the necessary cables. This reduces clutter inside your PC case. Better airflow and a tidier build are direct benefits.
What’s in the Box
- AC Power Cable
- CPU Cables
- PCIe Cables
- SATA Cables
- Peripheral (Molex) to SATA 3.3 Cable
Before You Finalise Your Build
- Confirm your PC case has adequate space for an ATX PSU (150mm x 140mm x 86mm).
- Confirm your motherboard requires ATX 3.1 power standards for optimal compatibility.
- Confirm your system’s total wattage requirements are met by 850W.
Frequently Asked Questions
Q: What does 80 PLUS Gold certification mean?
A: It signifies high energy efficiency, converting at least 87% of power at 20% load, 90% at 50% load, and 87% at 100% load.
Q: Is this power supply quiet?
A: Yes, it features a 120mm Hydro Dynamic Bearing fan with Smart and Silent Fan Control for optimal cooling at low noise levels.
Q: Can I use this with older components?
A: Yes, ATX 3.1 PSUs are generally backwards compatible with older ATX standards.
Q: What type of cooling does it use?
A: It uses active cooling with a single 12 cm fan.
Q: Does it have protection features?
A: Yes, it includes protection against over current, over power, under voltage, over total voltage, over voltage, and short circuit.
Our Recommendation
This power supply is an excellent choice for those building or upgrading a PC. It offers stable, efficient power and supports modern hardware standards. Seasonic backs this unit with a 7-year worldwide manufacturer’s warranty.
| Cooling | |
|---|---|
| Fan diameter | 12 cm |
| Number of fans | 1 fan(s) |
| Cooling type | Active |
| Performance | |
| On/off switch | Yes |
| Power supply unit (PSU) form factor | ATX |
| 80 PLUS certification | 80 PLUS Gold |
| Purpose | PC |
| ATX version | 3.1 |
| Mean time between failures (MTBF) | 100000 h |
| Certification | BSMI, C-tick, CB, CCC, CE, cTUVus, EAC, FCC, TUV, UKCA |
| Design | |
| 80 PLUS certification | 80 PLUS Gold |
| Certification | BSMI, C-tick, CB, CCC, CE, cTUVus, EAC, FCC, TUV, UKCA |
| Product colour | Black |
| Fan diameter | 12 cm |
| On/off switch | Yes |
| Number of fans | 1 fan(s) |
| Cooling type | Active |
| Power | |
| 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 (-12V) | 3.6 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 (-12V) | 0.3 A |
| Max output current (+5Vsb) | 3 A |
| Power protection features | Over current, Over power, Under voltage, Over total voltage, Over voltage, Short circuit |
| Ports & interfaces | |
| Number of PATA power connectors | 2 |
| Cabling type | Fully-Modular |
| Operational conditions | |
| Operating temperature (T-T) | 0 - 50 °C |
| Certificates | |
| Certification | BSMI, C-tick, CB, CCC, CE, cTUVus, EAC, FCC, TUV, UKCA |
| 80 PLUS certification | 80 PLUS Gold |
| Packaging content | |
| Cables included | AC, Peripheral (Molex) to SATA 3.3, CPU, PCIe, SATA |
| Weight & dimensions | |
| Width | 150 mm |
| Depth | 140 mm |
| Height | 86 mm |
| Packaging data | |
| Cables included | AC, Peripheral (Molex) to SATA 3.3, CPU, PCIe, SATA |
| Package type | Box |
| Identifiers | |
| Distributor SKUs | OSSRP-CGX851-A5A32SF |
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