be quiet!
be quiet! Pure Power 13 M 850W
Bottom line: The be quiet! Pure Power 13 M 850W ($99.90 on Amazon as of 2026-10-07): 80 PLUS Gold certified with up to 94.4% efficiency for lower heat and power draw; main trade-off: 850W ceiling limits dual-GPU or extreme RTX 5090 OC builds.
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*Price sourced from Amazon.com. Last updated 2026-10-07. Price and availability subject to change.
Pros & Cons
Pros
- ✓ 80 PLUS Gold certified with up to 94.4% efficiency for lower heat and power draw
- ✓ ATX 3.1 with native 12V-2x6 connector for PCIe 5.1 GPUs
- ✓ Handles power excursions up to double its 850W rating
- ✓ Semi-passive zero-RPM 120mm be quiet! fan is silent under low load
- ✓ Fully modular cables and a single 850W 12V rail for clean routing
Cons
- ✗ 850W ceiling limits dual-GPU or extreme RTX 5090 OC builds
- ✗ Only 4 PCIe 6+2-pin connectors for current-gen cards
- ✗ Zero-RPM fan spins back up under sustained heavy loads
- ✗ Gold efficiency tier, not Platinum or Titanium
SpecPicks Verdict
SpecPicks scored be quiet! Pure Power 13 M 850W using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. be quiet!'s power supplies lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for power supplies of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- 80 PLUS GOLD CERTIFIED Pure Power 13 M 850W is certified 80 PLUS Gold with an outstanding efficiency rating of up to 94.4%. The most compelling benefit: lower power consumption, consequently lower costs, and above all a cooler as well as quieter operation. Pure Power 13 M 850W is always the correct choice for quiet systems and gaming PCs!
- FUTURE-PROOF YOUR SYSTEM Pure Power 13 M 850W is an ATX 3.1 PSU and comes with both native integration of the 12V-2x6 connector for next-generation PCIe 5.1 graphics cards, and 4 PCIe 6+2-pin connectors for support of current-gen GPUs. This makes the PSU extremely versatile and the perfect choice for powerful systems of today and the ones to come
- THE NEW STANDARD OF POWER Pure Power 13 M offers 850W of continuous power with one massive 12V rail. Even if the graphics card demands excessive power for a short time: Pure Power 13 M 850W handles power excursions up to double its rated power with ease. This ensures reliable operation with the next generation of processors and graphics cards.
- SEMI-PASSIVE ZERO-RPM COOLING While under low load, the fan turns off completely until its services are needed again for more demanding operations. This feature, combined with the reliable be quiet! fan and its airflow-optimized fan blades, make Pure Power 13 M 850W exceptionally silent in all load scenarios
- HIGH-CLASS TECHNOLOGIES With its LLC topology Pure Power 13 M 850W provides best-in-class voltage regulation and efficiency. That makes it perfect for building very quiet systems or upgrading gaming and media creation PCs
Full Specifications
| Brand | be quiet! |
|---|---|
| Wattage | 850 watts |
| Model Name | BP027US |
| Model Number | BP027US |
| Built-In Media | be quiet! Power Supply BP027US Pure Power 13 M 850W Retail |
| Connector Type | ATX |
| Output Wattage | 850 watts |
| Item Dimensions | 6.3 x 5.91 x 3.39 inches |
| Compatible Devices | PC |
| Power Supply Design | Full Modular |
| Warranty Description | 1 Year Manufacturer |
| Maximum Input Voltage | 120 volts_of_alternating_current |
| Minimum Input Voltage | 100 volts_of_alternating_current |
| Item dimensions L x W x H | 6.3 x 5.91 x 3.39 inches |
| Connector Type Used on Cable | ATX |
| Full listing title | be quiet! Pure Power 13 M 850W, ATX 3.1, Fully Modular PSU, 80+ Gold | PCIe 5.1 Ready Power Supply, Up to 94.4% Efficiency, LLC Topology, Semi-Passive 120mm fan, 12V-2x6 600W, 10 Year Warranty |
Ready to buy?
be quiet! Pure Power 13 M 850W, ATX 3.1, Fully Modular PSU, 80+ Gold | PCIe 5.1 Ready Power Supply, Up to 94.4% Efficiency, LLC Topology, Semi-Passive 120mm fan, 12V-2x6 600W, 10 Year Warranty is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-07. Price and availability subject to change.
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