ASUS ROG Strix 850W Gaming PSU
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About This Item
- 850 W ATX 3.1 power supply with GaN MOSFET technology
- 80 PLUS Platinum certification for superior energy efficiency
- Fully-modular design with etched cables for easy installation
- 1x 120mm top-mounted semi-passive cooling fan
- 6x SATA, 3x Molex, 3x PCIe, and 1x 12V-2×6 connectors
- Active PFC and comprehensive protection features
- Compact 160x150x86 mm form factor, 1.78 kg weight
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ASUS ROG Strix Platinum 850W | High-Efficiency Gaming PSU
The ASUS ROG -STRIX-850P-GAMING power supply unit 850 W 20+4 pin ATX ATX Black delivers next-generation power efficiency and rock-solid stability for demanding gaming rigs. Built with GaN MOSFET technology, this 80 PLUS Platinum certified PSU ensures your high-end components receive clean, consistent power while minimising energy waste.
Product Specifications
| Metric | Spec |
|---|---|
| Total Power | 850 W |
| Efficiency Certification | 80 PLUS Platinum |
| Form Factor | ATX |
| Cooling | Semi-passive, single fan |
| Cabling | Fully-modular |
GaN MOSFET Technology for Superior Efficiency
The ROG Strix Platinum PSU features innovative GaN MOSFET technology that delivers up to 30% better power efficiency compared to traditional silicon designs. This advanced component generates less heat and operates more efficiently, reducing energy waste and keeping your electricity bills lower. The compact size of GaN MOSFET also allows for a more organised internal layout, creating space for larger heatsinks and improved airflow for enhanced thermal performance.
Intelligent Voltage Stabilisation for GPU Protection
Equipped with an Intelligent Voltage Stabilizer, this PSU ensures your graphics card receives steady, clean power even during intense gaming sessions or heavy workloads. This is particularly crucial for modern GPUs that demand consistent voltage to maintain peak performance and prevent instability. The technology actively monitors and adjusts power delivery to protect your expensive components from voltage fluctuations that could cause crashes or hardware damage.
ATX 3.1 Compliance and PCIe 5.0 Ready
Future-proof your build with ATX 3.1 compliance and native 12V-2×6 connector support. This PSU is engineered to handle the latest hardware requirements, including the power-hungry demands of next-generation graphics cards and processors. The 850W capacity provides ample headroom for high-end gaming systems with multiple GPUs, extensive cooling solutions, and RGB lighting setups, ensuring your rig can handle current and upcoming hardware without power limitations.
ROG Heatsinks for Extended Component Lifespan
ROG heatsinks facilitate lower operating temperatures throughout the PSU, directly contributing to longer component lifespan and extended 0dB operation during light loads. The enhanced cooling design means the fan stays off during low-power usage, creating a completely silent computing experience when browsing or performing light tasks. Under heavy loads, the optimised heatsink design maintains efficient heat dissipation, preventing thermal throttling and ensuring consistent performance during marathon gaming sessions.
Box contents
- ASUS ROG Strix Platinum 850W PSU
- Fully-modular cables (CPU, PCIe, SATA, Peripheral)
- Mounting screws
- User manual
Key points to check
- Confirm your case has sufficient space for ATX PSU dimensions (160 x 150 x 86 mm)
- Verify your GPU requires a 6+2 pin connector (3 provided)
- Check if your motherboard needs a 20+4 pin ATX connector
- Ensure your system’s total power draw stays under 850W with headroom for future upgrades
Common questions
Is this PSU compatible with PCIe 5.0 graphics cards?
How many fans does the cooling system have?
What type of power protection does this unit offer?
Are the cables braided or flat?
Our verdict
The ASUS ROG -STRIX-850P-GAMING power supply unit represents an excellent choice for serious gamers and PC enthusiasts building high-performance systems. Its GaN MOSFET technology, ATX 3.1 compliance, and fully-modular design make it ideal for users who demand efficiency, reliability, and future-proofing. Covered by the applicable manufacturer warranty.
| Product colour | Black |
|---|---|
| Number of fans | 1 fan(s) |
| Fan location | Top |
| Cooling type | Semi-passive |
| Total power | 850 W |
| AC input voltage | 100 – 240 V |
| Power Factor Correction PFC type | Active |
| Combined power +3.3V | 130 W |
| Combined power +5V | 130 W |
| Combined power -12V | 3.6 W |
| Combined power +5Vsb | 15 W |
| Max output current +3.3V | 25 A |
| Max output current +5V | 25 A |
| Max output current -12V | 0.3 A |
| Max output current +5Vsb | 3 A |
| Power protection features | Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage |
| Motherboard power cable length | 61 cm |
| SATA power cable length | 400,120 mm |
| Peripheral Molex power cable length | 400,150 mm |
| PCI Express power cable length | 75 cm |
| CPU power cable length | 100 cm |
| Motherboard power connector | 20+4 pin ATX |
| Number of SATA power connectors | 6 |
| Peripheral Molex power connectors 4-pin | 3 |
| PCI Express power connectors 6+2 pin | 3 |
| CPU power connector 4+4 pin | Yes |
| Cabling type | Fully-Modular |
| PCI Express power connectors 16-pin | 1 |
| Silent mode | Yes |
| Purpose | PC |
| ATX version | 3.1 |
| Mean time between failures MTBF | 120000 h |
| Width | 160 mm |
| Depth | 150 mm |
| Height | 86 mm |
| Weight | 1.78 kg |
| Cables included | CPU, PCIe, SATA, Peripheral (Molex) |
| Package depth | 200 mm |
| Package width | 320 mm |
| Package height | 108 mm |
| Package type | Box |
| Package weight | 2.8 kg |
| Compliance certificates | RoHS |
| Distributor SKUs | W129019484, 538138, STD10229022, CL90YE00W2-B0NA00 |
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