ASUS ROG Strix 850W Gold PSU, Power Supply (ROG heatsinks, Axial-tech Fan Design, Dual Ball Fan Bearings, 0dB Technology, 80 Plus Gold Certification, Fully Modular Cables, 10-Year Warranty)
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AI Verdict
This is a heavy-duty, ultra-quiet 850W power supply built for high-end gaming rigs, but the incredibly stiff cables make installation a massive headache.
The 16 x 15 x 8.6 cm footprint and stiff in-line capacitor cables make it a nightmare for compact cases. It fits perfectly in a massive mid-tower where you want the 135mm fan to stay off during idle workloads.
If you have a smaller case, look for a PSU with flat, ribbon-style cables or buy a custom sleeved cable kit.
Regret Score™
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Issues discovered after purchase
Critically weak dimension
Amazon rating vs actual quality
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Pros
- 135mm Axial-tech fan stays completely off until you hit 60% load (around 510W)
- Massive internal ROG heatsinks keep temperatures low enough to extend the 0dB fan mode
- 100% Japanese capacitors and an 80 Plus Gold rating ensure stable, efficient power delivery
- Backed by a massive 10-year warranty for long-term peace of mind
- Includes magnetic logos and stickers to customize the side panel without dealing with RGB software
Cons
- The included mesh-sleeved cables have bulky in-line capacitors that make them incredibly stiff and hard to route
- Some units suffer from a noticeable 'cricket' buzzing noise when the dual-ball bearing fan finally spins up
- Lacks a native 12VHPWR cable, requiring a bulky adapter for modern RTX 40-series graphics cards
Dimension Scores
80 Plus Gold with 100% Japanese capacitors delivers rock-solid voltage regulation.
Dead silent under 510W, but the dual-ball bearing fan can have a slight hum when active.
Heavy-duty internal ROG heatsinks and a 10-year warranty prove it is built to last.
The thick mesh sleeves and stiff in-line capacitors make routing these cables a frustrating experience.
Best For
- High-end gaming rigs running power-hungry cards like an RTX 4070 Ti or RX 7900 XT
- Silent PC builds where you want the PSU fan to stay off during web browsing and light gaming
- Showcase builds where the power supply shroud is cut out to display the side panel
Not Recommended For
- Small form factor (SFF) or tight ATX cases where stiff, bulky cables will be impossible to bend
- Builds using the latest ATX 3.0 standard that require a native 16-pin GPU cable
Watch Out For
- The cables have hidden in-line capacitors under the heat shrink, making the ends extremely rigid and difficult to plug into tight motherboard spaces.
- The 0dB fan button is on the back, but if your system runs hot, the dual-ball bearing fan can sometimes emit a high-pitched cricket-like noise when it kicks on.
- This base model does NOT have RGB lighting—do not confuse it with the 'Aura Edition' if you want glowing cables or logos.
Full Specifications
| ASIN | B08BPLJQMP |
| Brand | ASUS |
| Series | ROG-STRIX-850G |
| Voltage | 100240 Volts |
| Wattage | 850 watts |
| Model Name | ROG-STRIX-850G |
| Form Factor | ATX |
| Item Weight | 4.03 pounds |
| Manufacturer | ASUS |
| Connector Type | SATA |
| Cooling Method | Air |
| Output Wattage | 850.0 |
| Item model number | ROG-STRIX-850G |
| Compatible Devices | PC |
| Product Dimensions | 6.3 x 5.91 x 3.39 inches |
| Item Dimensions LxWxH | 6.3 x 5.91 x 3.39 inches |
| Item dimensions L x W x H | 6.3 x 5.91 x 3.39 inches |
What Buyers Say
The biggest shock for most buyers is how aggressively stiff the included cables are. Because ASUS used in-line capacitors to improve ripple suppression, the ends of the cables are thick and refuse to bend easily, making cable management in tight cases a nightmare. Beyond the cables, owners are thrilled with the 0dB fan mode, noting the PSU is dead silent during daily tasks and light gaming. A vocal minority of users report a 'cricket' or coil whine noise when the fan finally ramps up under heavy load.
“Great power supply that runs dead silent, but the cables are so stiff I felt like I was going to snap my motherboard trying to plug them in.”
Common Praise
- 135mm fan stays completely off during normal desktop use and light gaming
- Premium unboxing experience with included velcro ties and magnetic badges
- Rock-solid stability even when paired with power-hungry 850W loads
- The massive internal heatsinks keep the unit cool to the touch
Common Complaints
- Cables are incredibly stiff and hard to bend near the connectors
- Noticeable coil whine or fan bearing 'cricket' noise on some units
- No native 12VHPWR cable for modern Nvidia GPUs
- In-line capacitors make the cable ends too bulky for small form factor cases
Ownership Tips
- The 0dB button on the back is a set-and-forget feature; most leave it on to enjoy the silence.
- You will likely want to buy custom sleeved cable extensions if you care about aesthetics or have a tight case.
- The magnetic logos are a fun touch but completely useless if your case has a solid PSU shroud.
Frequently Asked Questions
Does this power supply have RGB lighting?
No. This specific model uses magnetic stickers and badges for customization. If you want RGB, you need the ROG Strix Aura Edition.
Are the cables flat or braided?
They are thick, braided cables covered in mesh. They also contain in-line capacitors, making the ends very stiff and hard to bend.
When does the fan actually turn on?
Thanks to the 0dB technology, the 135mm fan stays completely off until your system pulls about 60% load (around 510W).
Is this an ATX 3.0 power supply with the new 12VHPWR cable?
No, this original version is an older ATX standard and uses standard 8-pin PCIe cables. You will need an adapter for RTX 40-series cards.
Who actually manufactures this power supply for ASUS?
The internal platform is manufactured by Seasonic, which is why it shares a lot of similarities with the Seasonic Focus Plus Gold series.
Buying Guide
When buying a high-end power supply, you are paying for silence and reliability, not just wattage. This ASUS unit is essentially a premium Seasonic power supply wearing a heavy metal ROG suit. The oversized heatsinks mean the fan rarely has to spin, which is great for quiet rooms. Just be prepared to wrestle with the cables—they are thick, stiff, and unforgiving if you do not have a lot of space behind your motherboard tray.
80 Plus Gold Certification
Think of this like gas mileage for your PC. It means the power supply is highly efficient at converting wall power to PC power, resulting in less wasted heat and a lower electric bill.
0dB Technology
Like a hybrid car that shuts off its engine at a stoplight, the PSU fan completely stops spinning when you aren't doing heavy gaming, keeping your room quiet.
Fully Modular
Instead of a permanent octopus of wires, you only plug in the exact cables you need. It keeps your PC interior looking clean and improves airflow.
Alternatives
If you want the same 850W reliability but need flexible cables for a tight case, look for units with flat ribbon cables or newer ATX 3.0 standards.
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