be quiet! Dark Power 13 850W Quiet Performance Power Supply | 80 Plus Titanium Efficiency | ATX 3.0 | PCIe 5 | Modular | BN660
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AI Verdict
An 850W 80 PLUS Titanium ATX 3.0 power supply with native 12VHPWR, designed for high-end, quiet PC builds.
This 850W 80 PLUS Titanium PSU is a strong fit for high-end systems due to its 95.4% efficiency and ATX 3.0 compliance with a native 12VHPWR connector. It provides stable power delivery for demanding GPUs and CPUs while maintaining virtually inaudible operation.
If 850W isn't enough, look for higher wattage ATX 3.0 PSUs with similar 80 PLUS Titanium efficiency ratings and native 12VHPWR connectors.
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Pros
- Achieves 80 PLUS Titanium efficiency, reaching up to 95.4% efficiency for reduced power consumption and heat.
- Includes native 12VHPWR connector and ATX 3.0 compliance for next-generation PCIe 5.0 graphics cards.
- Features an improved frameless Silent Wings fan for virtually inaudible operation.
- Offers 850W of continuous power with 4 independent 12V rails, handling power excursions up to double its rated power.
- Backed by a 10-year manufacturer's warranty.
- Built with high-quality Japanese capacitors rated to 105°C for stability and long operating life.
Cons
- Sits at a higher price point compared to many other 850W power supplies.
- Some users reported the EPS CPU cables are shorter than ideal for certain builds.
- Proprietary PSU-side connectors are not standard, which can be a minor inconvenience.
- Isolated reports of fan noise or crackling, though primarily noted for higher wattage Dark Power 13 models.
Dimension Scores
Achieves 80 PLUS Titanium certification with up to 95.4% efficiency and handles power excursions up to double its rated 850W.
Features an improved frameless Silent Wings fan, resulting in virtually inaudible operation under typical loads.
Utilizes high-quality Japanese capacitors rated to 105°C and comes with a 10-year warranty.
Fully modular design simplifies cable routing, but some EPS CPU cables are reported to be short and PSU-side connectors are proprietary.
Best For
- High-performance gaming PCs with power-hungry, next-gen GPUs requiring ATX 3.0 and PCIe 5.0.
- Workstations where minimal noise output is a priority.
- Users building systems with high-end components who want maximum power efficiency.
Not Recommended For
- Budget-focused PC builds where cost is the primary concern.
- Systems with older GPUs that do not require ATX 3.0 or 12VHPWR connectors.
- Users who need exceptionally long CPU power cables for large cases without extensions.
Watch Out For
- The EPS CPU cables can be short, potentially requiring extensions for larger cases or specific motherboard layouts.
- While generally quiet, there are scattered reports of fan noise or crackling, particularly for the 1000W and 1600W versions of the Dark Power 13 series.
- The PSU-side connectors are not standard, which could limit cable compatibility if you ever need replacements or custom cables.
Full Specifications
| ASIN | B0BV6CX5PL |
| Brand | be quiet! |
| Wattage | 850 watts |
| Fan Count | 1 |
| Model Name | BN660 |
| Form Factor | ATX |
| Item Weight | 9.2 pounds |
| Manufacturer | be quiet! |
| Connector Type | ATX |
| Cooling Method | Air |
| Output Wattage | 850 |
| Item model number | BN660 |
| Compatible Devices | Computer Case |
| Product Dimensions | 6.89 x 5.91 x 3.39 inches |
| Item dimensions L x W x H | 6.89 x 5.91 x 3.39 inches |
What Buyers Say
What really stands out is how quiet this thing runs, even when your system is pulling serious power; it's genuinely hard to hear the fan over anything else in your PC. The 80 PLUS Titanium efficiency is a big deal, not just for your electricity bill, but also because less wasted energy means less heat, which helps keep it quiet. The native 12VHPWR connector and ATX 3.0 support are clutch for anyone running a modern GPU, so you don't have to mess with adapters. However, you're definitely paying a premium for this level of performance and quietness. Some users have also noted that the CPU power cables can be a bit short, which might be a headache in larger cases.
“Man, this thing is silent, like, I literally can't hear it over my case fans, but damn, my wallet still feels that hit.”
Common Praise
- The fan is extremely quiet, often described as inaudible during operation.
- Provides very high energy efficiency, consistently hitting 95%+ under load.
- Directly supports new PCIe 5.0 GPUs with the included 12VHPWR cable.
- The build feels premium with a noticeable weight and quality components.
- Offers stable and consistent power delivery, even during power spikes.
Common Complaints
- The price is significantly higher than many other 850W PSUs.
- EPS CPU cables are sometimes too short for comfortable routing in larger cases.
- Some users expressed concern over proprietary PSU-side connectors.
- A few reports of fan noise or crackling, though less frequent for the 850W model compared to higher wattages.
Ownership Tips
- The modular cables are all sleeved, which looks clean but can make them a bit stiffer to route.
- The overclocking key is a neat feature, but you'll likely set it once and forget it unless you're really pushing your system.
- The unit itself has a slightly longer footprint than some other PSUs, so double-check case clearance if you have a compact build.
- The 12VHPWR cable is robust and feels secure, eliminating the need for bulky adapters.
Frequently Asked Questions
Is this power supply truly silent?
Yes, be quiet! states it offers 'virtually inaudible operation' due to its frameless Silent Wings fan. Professional reviews confirm very low fan noise under testing.
Does it support the latest graphics cards?
Absolutely. It's an ATX 3.0 PSU with a native 12VHPWR connector for PCIe 5.0 graphics cards, plus PCIe 6+2-pin connectors for current-gen GPUs.
What is the 'overclocking key' for?
The overclocking key allows you to switch between the default four independent 12V rails and a single, powerful 12V rail, which can be beneficial for extreme overclocking scenarios.
What kind of warranty does it come with?
It comes with a 10-year manufacturer's warranty, indicating be quiet!'s confidence in its durability and component quality.
Is the 850W model affected by the fan noise issues reported for other Dark Power 13 PSUs?
While some Reddit users reported fan noise or crackling with the 1000W and 1600W Dark Power 13 models, these complaints are less common for the 850W version.
Buying Guide
When you're looking at power supplies, you're basically buying the heart of your PC. You need enough wattage to power all your components, especially your graphics card and CPU. Efficiency ratings tell you how much power the PSU wastes as heat; higher efficiency means less wasted electricity and less heat inside your case. Modularity is about cable management—fully modular means you only plug in the cables you need, making your build much cleaner. ATX 3.0 and PCIe 5.0 are crucial for newer, power-hungry GPUs, ensuring your PSU can handle their specific power demands and sudden power spikes.
850 watts
This is the maximum continuous power your PSU can deliver. For a high-end gaming PC with a powerful GPU and CPU, 850W provides ample headroom for stable operation and future upgrades.
80 PLUS Titanium Efficiency
This certification means the PSU converts AC power to DC power with extremely low loss, up to 95.4% efficiency. This saves you money on electricity, generates less heat, and contributes to quieter operation.
ATX 3.0 | PCIe 5 | 12VHPWR
This is essential for modern graphics cards. ATX 3.0 ensures the PSU can handle the transient power spikes of new GPUs, and the native 12VHPWR connector (PCIe 5) provides a single, clean cable for high-power GPUs, replacing multiple older PCIe cables.
Modular
A modular PSU means you only connect the cables your system needs. This reduces cable clutter inside your PC case, improving airflow and making your build look much cleaner.
Alternatives
If this PSU is too expensive, look for 850W ATX 3.0 PSUs with 80 PLUS Platinum efficiency and native 12VHPWR connectors. If you don't need ATX 3.0, consider older generation 80 PLUS Gold PSUs for significant cost savings.
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