be quiet! Pure Power 12 M power supply unit 850 W 20+4 pin ATX ATX Black
KEY FEATURES
- 80 PLUS® Gold efficiency (up to 93.2%)
- ATX 3.1 PSU with full support for PCIe 5.1 GPUs and GPUs with 6+2 pin connectors
- Exceptionally silent 120mm be quiet! fan
- Advanced stability and voltage regulation thanks to LLC technology
- 2 strong 12V-rails
- Modular cables for maximum build flexibility
- One PCIe 5.1 12V-2x6 600W and 4 PCIe 6+2 connectors for overclocked high-end GPUs
- 10-year manufacturer’s warranty
100% Guarantee Safe Checkout
Reviews
Frequently Asked Questions

be quiet! Pure Power 12 M power supply unit 850 W 20+4 pin ATX ATX Black
Description
be quiet! Pure Power 12 M. Total power: 850 W, AC input voltage: 100 - 240 V, Peak power: 900 W. Motherboard power connector: 20+4 pin ATX, Motherboard power cable length: 55 cm, SATA power cable length: 500,600,650,800,950 mm. Purpose: PC, Power supply unit (PSU) form factor: ATX, 80 PLUS certification: 80 PLUS Gold. Product colour: Black, Cooling type: Active, Fan diameter: 12 cm. Cables included: PATA, PCIe, Peripheral (Molex), SATA
EXCEPTIONAL QUIET, SUPERIOR FEATURES
Pure Power 12 M 850W is ATX 3.0 compliant and PCIe 5.0 compatible and offers peerless dependability with best-in-class features. Pure Power 12 M 850W offers the best combination of features with outstanding compatibility.
80 PLUS® GOLD CERTIFIED
Very high operating efficiency
Pure Power 12 M 850W is certified 80 PLUS Gold with an outstanding efficiency rating of up to 93.2%. The most compelling benefit: lower power consumption, consequently lower costs, and above all a cooler as well as quieter operation. Pure Power 12 M 850W is always the correct choice for quiet systems and gaming PCs!
FUTURE-PROOF YOUR SYSTEM
Fulfills all ATX 3.0 specifications
Pure Power 12 M 850W is an ATX 3.0 PSU and comes with both native integration of the 12VHPWR connector for next-generation PCIe 5.0 graphics cards, and PCIe 6+2-pin connectors for support of current-gen GPUs. This makes the PSU extremely versatile and the perfect choice for present high-end systems and the ones to come.
THE NEW STANDARD OF POWER
For massive transient loads
Pure Power 12 M offers 850W of continuous power with 2 independent 12V rails. Even if the graphics card demands excessive power for a short time: Pure Power 12 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.
UNPRECEDENTED SILENT OPERATION
Achieved with a silence-optimized be quiet! fan
The exceptionally silent 120mm be quiet! fan is temperature-controlled to strike the best balance between effective cooling and quietness. Airflow-optimized fan blades reduce turbulence, enabling best-in-class
quiet functionality.
HIGH-CLASS TECHNOLOGIES
Rock-solid stability
With its LLC topology Pure Power 12 M 850W provides a best-in-class voltage regulation and efficiency. That makes it perfect for building or upgrading very quiet systems as well as gaming and media creation PCs.
MODULAR CABLES
Utmost convenience and compatibility
Thanks to their modularity, all unnecessary cables in the system are left out. Pure Power 12 M 850W simplifies cable management and routing for a tidy-looking system. A smoother airflow results from the uncluttered layout of the system, which means lower noise and temperatures inside the case.
Feature
Easy 14 days Returns
Eligible for Next day Delivery
100% Money-back guarantee
24/7 Customer support
Secure payment method
Shipping Information
- Next Business Day: £6.99
- 2 days Delivery: £4.99
- 3- 5 Days Shipping: £3.99
- Orders Over £99.00: Free Standard Delivery
Power | |
---|---|
Power protection features | Over current, Over power, Over voltage, Overheating, Short circuit |
Power Good signal delay range | 100 - 150 ms |
Efficiency | 93.2% |
Max output current (+5Vsb) | 3 A |
Max output current (-12V) | 0.3 A |
Max output current (+5V) | 22 A |
Max output current (+12V2) | 36 A |
Max output current (+12V1) | 40 A |
Max output current (+12V) | 70.9 A |
Max output current (+3.3V) | 22 A |
Combined power (+5Vsb) | 15 W |
Combined power (-12V) | 3.6 W |
Combined power (+5V) | 120 W |
Combined power (+12V) | 850 W |
Combined power (+3.3V) | 120 W |
Power Factor Correction (PFC) type | Active |
Power factor | 0.98 |
Input current | 12 / 6 A |
AC input frequency | 50 - 60 Hz |
AC input voltage | 100 - 240 V |
Peak power | 900 W |
Total power | 850 W |
Ports & interfaces | |
---|---|
Cabling type | Fully-Modular |
PCI Express connector | Yes |
ATX power connector (20+4 pin) | Yes |
PCI Express power connectors (6+2 pin) | 4 |
EPS power connector (4+4 pin) | Yes |
EPS power connector (8-pin) | Yes |
Peripheral (Molex) power cable length | 550 mm |
Peripheral (Molex) power connectors (4-pin) | 1 |
SATA power cable length | 500,600,650,800,950 mm |
Number of SATA power connectors | 6 |
Number of PATA power connectors | 2 |
Motherboard power cable length | 55 cm |
Motherboard power connector | 20+4 pin ATX |
Performance | |
---|---|
Mean time between failures (MTBF) | 100000 h |
Noise level | 25.7 dB |
EPS version | 2.92 |
ATX version | 3.1 |
80 PLUS certification | 80 PLUS Gold |
Power supply unit (PSU) form factor | ATX |
Purpose | PC |
Design | |
---|---|
On/off switch | Yes |
Fan location | Top |
Number of fans | 1 fan(s) |
Fan diameter | 12 cm |
Cooling type | Active |
Product colour | Black |
Operational conditions | |
---|---|
Operating temperature (T-T) | 0 - 40 °C |
Packaging content | |
---|---|
Cables included | PATA, PCIe, Peripheral (Molex), SATA |
Weight & dimensions | |
---|---|
Height | 86 mm |
Depth | 150 mm |
Width | 160 mm |
Packaging data | |
---|---|
Package type | Box |
Technical details | |
---|---|
Sustainability compliance | Yes |
Warranty period | 10 year(s) |
Compliance certificates | RoHS |
Sustainability certificates | ENERGY STAR, ErP |
Other features | |
---|---|
Noise level (full-load mode, 100%) | 25.7 dB |
Noise level (quiet mode, 50%) | 9.5 dB |
Noise level (silent mode, | 9.4 dB |
Cable ties included | Yes |
Number of screws | 5 |
Screws included | Yes |
Frequently Asked Questions
When will it arrive?
Any order over £99 wil be shipped on our free 2-3 working day service, if you opt for Next Working Day shipping then this will be with you the next working day between 09:00 and 18:00. Deliveries to Northern Ireland, Channel Islands and the Scottish Highlands will be on a 3 day service.
Do you offer a credit account?
We offer credit accounts to Gotraka Business customers, please enquire with our customer support team for more information. Credits accounts are subject to KYC.
How long is the returns policy?
For most products bought online, you have a legal right to change your mind within 14 days and receive a refund. If you wish to return unwanted products, you must let us know that you want to return them within 14 calendar days from the day after delivery. The item must also be returned to us within 7 working days from approval of return and receipt of the return label.
How long will it take to receive my order?
This is something that we are working hard to bring to you - we recognise that having deliveries on preferred days not only makes it easier for you but it is also great for the environment. By having deliveries arranged on days that you are going to be in or consolidating your orders to arrive to you at the same time means that the courier won't need to come back multiple times due to missed deliveries or multiple deliveries.
Can I change my delivery address once the order has been placed?
Our systems are highly automated, where possible we will do our utmost to accommodate this. To ensure we maintain a high delivery success rate most of our orders are picked and prepped for shipment within 30 minutes
How do I return my order?
If you need to return your order please raise a return through your order page detailing the reason for return. Once this form has been submitted it will be reviewed by the Returns Department who will contact you to arrange the return.
Please note the returns department may ask for more information such as the serial number(s) and images where applicable to process the return.
How long do I have to return an item?
For most products bought online, you have a legal right to change your mind within 14 days and receive a refund. If you wish to return unwanted products, you must let us know that you want to return them within 14 calendar days from the day after delivery. The item must also be returned to us within 7 working days from approval of return and receipt of the return label
Are returns free?
Returns for faulty / damaged items will be free of charge
Returns for unwanted items that have no fault will incur a minimal returns fee - delivery charges will not be refunded
Can’t find what you’re looking for?
Our friendly support team is just a message away, ready to assist with anything. Our team is experienced with gaming gear, home tech, and everything in between—feel free to reach out.
📧 Email: help@gotraka.com
📞 Phone: 020 8208 1234
💬 Live Chat: Available 9 AM – 6 PM ( Monday - Friday )