ASUS TUF Gaming 850W Platinum PSU - ATX 3.1, GaN MOSFET
ASUS
ASUS TUF Gaming 850W Platinum PSU - ATX 3.1, GaN MOSFET
The ASUS TUF Gaming 850W Platinum PSU - ATX 3.1, GaN MOSFET is an 850-watt power supply built for enthusiast and high-end gaming systems that demand stable, efficient power under sustained load. It is aimed at builders who want long-term reliability alongside modern GPU compatibility, including support for PCIe 5.1 graphics cards and the ATX 3.1 standard. An 8-year warranty and military-grade internal components back up the durability claims.
Why this product
GaN MOSFET for efficient power delivery
The GaN MOSFET technology reduces heat generation and energy waste compared to conventional silicon MOSFETs, making it well-suited to demanding workloads such as high-end gaming and video editing.
80 PLUS Platinum efficiency rating
Certified 80 PLUS Platinum and rated Cybenetics Platinum at both 115V and 230V, meaning less power is wasted as heat across a wide range of loads.
ATX 3.1 and PCIe 5.1 compatible
Meets the ATX 3.1 standard and supports PCIe 5.1 graphics cards, with support for power excursions up to twice the rated power overall and up to three times for the GPU rail.
Military-grade capacitors, 2.5× longer lifespan
TUF 5K black metallic capacitors offer a 52% wider temperature tolerance and up to 2.5 times the lifespan of standard capacitors, reducing the risk of degradation over time.
Dual-ball bearing fan lasts up to twice as long
The 135mm fan uses a dual-ball bearing design rated for up to twice the service life of a sleeve bearing fan, maintaining consistent airflow over years of use.
8-year warranty
ASUS backs this unit with an 8-year warranty, one of the longer coverage periods available on consumer PSUs.
- Total Output850W
- Efficiency Rating80 PLUS Platinum
- ATX StandardATX 3.1
- PCIe Connector16-pin (12V-2x6) × 1
- Warranty8 years
- Dimensions150 × 150 × 86 mm
- Weight1.48 kg
- MTBF>120,000 hrs @ 40°C
- SKUASU-2489
- EAN4711636489911
- Compatible with ATX 3.1 motherboard and chassis configurations.
- Supports PCIe 5.1 graphics cards via the included 16-pin (12V-2x6) connector.
- AC input range of 100–240V makes it suitable for use in most countries worldwide.
- Includes dual CPU 4+4-pin connectors, supporting motherboards that require two EPS connectors.
- No AURA SYNC RGB — this unit has no lighting and cannot be controlled via ASUS AURA software.
- Does not include 0dB fan-stop technology; the fan runs at all times during operation.
Best for
- High-end gaming builds requiring a modern ATX 3.1 PSU with PCIe 5.1 support and stable power excursion handling.
- Long-term builders who want an 8-year warranty and military-grade capacitors rated for extended service life.
- Efficiency-focused users who want 80 PLUS Platinum and Cybenetics Platinum certification to reduce energy costs and heat output.
- Systems subject to temperature extremes, as it is rated to handle temperature cycles from -40°C to 85°C across 27 cycles.
- Demanding workstation use such as AI development or video editing, where consistent, clean power delivery is important.
Trade-offs
- RGB-focused builds — it has no AURA SYNC or any lighting, so buyers looking for a lit PSU should look elsewhere.
- Users who prefer silent operation at idle — there is no 0dB fan-stop mode; the fan runs continuously.
- Very high-wattage multi-GPU or extreme overclocking rigs — the total output is 850W, which may be insufficient for configurations requiring more headroom.
- Budget-conscious builders — GaN MOSFET technology and military-grade components position this above entry-level PSUs in cost.
The ASUS TUF Gaming 850W Platinum packs a next gen GaN MOSFET, military-grade strength, flagship fan design, and PCB protection for efficient, durable power delivery. The result is a PSU that can reliably fuel your rig for years to come.
GaN MOSFET
The TUF Gaming Platinum PSU boasts an innovative GaN MOSFET that delivers superior energy efficiency, faster switching speeds, lower heat generation, and higher voltage resistance position it as a server-grade material for demanding applications such as AI development, high-end gaming, and video editing. This MOSFET's compact size also enables a streamlined layout with larger heatsinks and enhanced airflow for superior heat dissipation.
Military-Grade Capacitors
Engineered for exceptional durability, the TUF Gaming Platinum series features TUF 5K black metallic capacitors, offering a 52% wider temperature tolerance and up to a 2.5X longer lifespan than standard capacitors.
Extreme Temperature
The TUF Gaming Platinum series is capable of handling drastic temperature changes from -40°C to 85°C for 27 cycles while maintaining operation.
Dual-Ball Fan Bearings
Exemplary cooling is provided by a 135mm fan spinning on a dual-ball bearing setup that can last up to twice as long as a sleeve bearing design.
ATX 3.1 & PCIe 5.1 Compatible
The TUF Gaming Platinum series meets the stringent requirements of the ATX 3.1 standard and supports PCIe 5.1 graphics cards. It supports total power excursions up to twice the rated power and graphics card power excursions up to three times the rated power, helping to ensure rock-solid stability.
General
| Brand | ASUS |
|---|---|
| Model | TUF-GAMING-850P |
| Form Factor | ATX12V |
| ATX Standard | ATX 3.1 |
| Total Output | 850W |
| Weight | 1.48 kg |
| Dimensions | 150 × 150 × 86 mm |
| Warranty | 8 years |
| AURA SYNC | No |
| 0dB Fan Mode | No |
Efficiency & Power
| 80 PLUS Rating | Platinum |
|---|---|
| Cybenetics Efficiency | Platinum (230V) / Platinum (115V) |
| Cybenetics Noise Certification | A++ |
| PFC Type | Active PFC |
| AC Input Range | 100–240Vac |
| MTBF | >120,000 hrs @ 40°C |
| Hazardous Materials | RoHS compliant |
DC Output
| Output Voltages | +3.3V, +5V, +12V, -12V, +5Vsb |
|---|---|
| Maximum Load | +3.3V: 25A, +5V: 25A, +12V: 70.83A, -12V: 0.3A, +5Vsb: 3A |
| Combined Load | +3.3V/+5V: 125W, +12V: 850W, -12V: 3.6W, +5Vsb: 15W |
| Protection Features | OPP / OVP / UVP / SCP / OCP / OTP |
Connectors & Cables
| Motherboard Connector | 20+4-pin × 1 |
|---|---|
| CPU Connectors | 4+4-pin × 2 |
| PCIe 16-pin (12V-2x6) | × 1 |
| PCIe 6+2-pin | × 3 |
| SATA Connectors | × 4 |
| Peripheral Connectors | × 2 |
| Motherboard Cable Length | 610mm |
| CPU Cable Length | 650mm + 100mm |
| PCIe Gen 5.1 Cable Length | 500mm |
| Fan Size | 135mm dual-ball bearing |
Shipping
All our products are shipped from the United Kingdom within 24 to 48 hours of purchase. See our Shipping and Returns page for full details.
Returns
- Tech Syndicate offers a full money-back guarantee on all purchases made in our store. If you are not satisfied with your purchase, we will provide a full refund, no questions asked.
- Refunds are available within 45 days of delivery.
- After the 45-day period you are no longer eligible for a refund, so we encourage you to try the product within the first few weeks to make sure it fits your needs.