ASUS Prime 850G 850W ATX PSU Black
£109.90 inc VAT
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About This Item
- 850 W total power with ATX 3.1 and PCIe 5.1 compatibility
- 80 PLUS Gold certification for high efficiency
- Fully-modular cabling for custom builds
- Top-mounted 120 mm fan with active cooling and DBB bearings
- Comprehensive protection features including over-temperature and short-circuit
- ATX form factor with 60 cm motherboard and PCIe cables
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ASUS Prime 850W Gold Black Edition | ATX 3.1 Fully-Modular PSU
The ASUS Prime -850G power supply unit 850 W 20+4 pin ATX ATX Black is a reliable choice for UK PC builders. It delivers stable 850W power for high-performance systems. This unit is ideal for workstations and gaming rigs. It features 80 PLUS Gold efficiency and ATX 3.1 compliance.
Key Technical Metrics
| Metric | Spec. |
|---|---|
| Total Power | 850 W |
| Efficiency Rating | 80 PLUS Gold |
| Cabling Type | Fully-Modular |
| ATX Version | 3.1 |
| +12V Rail Capacity | 70.5 A |
| Warranty (Stated) | 8 years |
Stable 80 PLUS Gold Efficiency
This PSU achieves 80 PLUS Gold certification. It reduces energy waste and lowers heat output. In practice, this means a cooler and quieter system. It is suitable for continuous UK operation.
ATX 3.1 Compliance for Modern GPUs
The unit supports the latest ATX 3.1 standard. It handles high power excursions from modern graphics cards. This ensures stability during intense gaming or rendering. It is ready for next-generation hardware.
Durable Dual-Ball Bearing Fan
It uses a single top-mounted fan with DBB technology. This bearing type offers a long lifespan. The Mean Time Between Failures is rated at 120,000 hours. Active cooling keeps internal components at optimal temperatures.
Fully-Modular Cable Management
The design is fully modular. You only connect the cables your system needs. This improves airflow inside the case. It also results in a cleaner, more organised build.
Comprehensive Power Protection
The PSU includes multiple safety features. These protect your components from damage. Protection covers over-current, over-voltage, and short circuits. It also guards against overheating and under-voltage.
Box contents
- CPU power cable
- PCIe power cables
- Peripheral (Molex) power cables
- SATA power cables
Key points to check
- Confirm you have a standard UK kettle lead (C13 cable) for the AC input.
- Verify your PC case supports an ATX PSU form factor (150 mm width).
- Check your motherboard has a 20+4 pin ATX connector and a 4+4 pin CPU connector.
- Ensure your graphics card needs are met by the included 6+2 pin and 16-pin PCIe connectors.
Common questions
Is the ASUS Prime -850G compatible with NVIDIA RTX 40-series GPUs?
Does this PSU come with a UK power cable?
What is the physical size of this unit?
Is the cabling fully modular?
What protection features are included?
Summary & warranty
This ASUS Prime 850W unit is a solid choice for builders needing reliable, efficient power. It suits high-performance gaming PCs and professional workstations. The fully-modular design and ATX 3.1 support offer future-proofing. Covered by the applicable manufacturer warranty.
| Number of fans | 1 fan(s) |
|---|---|
| Fan location | Top |
| Cooling type | Active |
| On/off switch | Yes |
| Purpose | PC |
| ATX version | 3.1 |
| Mean time between failures MTBF | 120000 h |
| Bearing technology | DBB |
| Product colour | Black |
| Total power | 850 W |
| AC input voltage | 100 – 240 V |
| Power Factor Correction PFC type | Active |
| Combined power +3.3V | 110 W |
| Combined power -12V | 3.6 W |
| Combined power +5V | 110 W |
| Combined power +5Vsb | 12.5 W |
| Max output current +3.3V | 20 A |
| Max output current -12V | 0.3 A |
| Max output current +5V | 20 A |
| Max output current +5Vsb | 2.5 A |
| Power protection features | Overheating, Over current, Over power, Under voltage, Over voltage, Short circuit |
| Motherboard power cable length | 60 cm |
| SATA power cable length | 400,120 mm |
| Peripheral Molex power cable length | 400,150 mm |
| PCI Express power cable length | 60 cm |
| Motherboard power connector | 20+4 pin ATX |
| Number of SATA power connectors | 5 |
| Peripheral Molex power connectors 4-pin | 4 |
| PCI Express power connectors 6+2 pin | 2 |
| CPU power connector 4+4 pin | Yes |
| Cabling type | Fully-Modular |
| PCI Express power connectors 16-pin | 1 |
| Cables included | CPU, PCIe, Peripheral (Molex), SATA |
| Width | 150 mm |
| Depth | 150 mm |
| Height | 86 mm |
| Weight | 1.48 kg |
| Package depth | 213 mm |
| Package width | 320 mm |
| Package height | 113 mm |
| Package type | Box |
| Package weight | 2.88 kg |
| Distributor SKUs | PSU-90YE00U2-B0NA00 |
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