be quiet! Dark Power Pro 11 850W ATX Black power supply unit

Dark Power Pro 11 850W is be quiet!’s most advanced PSU ever, delivering 80PLUS® Platinum efficiency, effortless Quad-GPU support, and unmatched silence. The improved features include: Full bridge, LLC, SR and DC/DC technology delivers 80PLUS® Platinum power efficiency (up to 94%) and power stability unmatched in its classVirtually inaudible SilentWings® 3 135mm fan with fluid-dynamic bearing6-pole fan motor and IC motor control for smooth low-speed operation and reduced noiseLarge funnel-shaped fan intake facilitates high airflow with less turbulenceIsolation sleeve reduces transmission of vibrations to caseOverclocking key switches between four 12V-rails and one massive 12V-railUser-friendly cable management reduces clutter, improves coolingPremium 105°C-rated Japanese capacitors maximize reliabilityIntelligent control for up to 4 case fans5-year manufacturer’s warrantyGerman product conception, design and quality controlChoose Dark Power Pro 11 850W and get the most technologically-advanced PSU be quiet! has ever built.

Power
Total power	850 W
Peak power	950 W
AC input voltage	100 - 240
AC input frequency	50 - 60
Input current	13
Power factor	0.99
Maximum input current (@110V)	+12V1,+12V2,+12V3,+12V4,+3.3V,+5V,+5Vsb,-12V
Combined power (+3.3V)	25 W
Combined power (+5V)	25 W
Combined power (-12V)	0.5 W
Power protection features	Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage
Hold time	20.84 ms
Efficiency	94%
Cooling
Fan diameter	13.5 cm
Number of fans	1 fan(s)
Fan speed	1500
Cooling type	Active
Ports & interfaces
Motherboard power connector	20+4 pin ATX
Number of SATA power connectors	8
Peripheral (Molex) power connectors (4-pin)	7
EPS power connector (8-pin)	Yes
PCI Express power connectors (6+2 pin)	7
CPU power connector (4+4 pin)	Yes
Floppy drive power connector	2
Floppy disk drive connector	Yes
CPU power connectors (8-pin)	1
Performance
Power supply unit (PSU) form factor	ATX
Noise level (quiet mode, 50%)	10.4 dB
Noise level (full-load mode, 100%)	20.1 dB
Purpose	PC
ATX version	2.4
EPS version	2.92
Design
Colour of product	Black
Weight & dimensions
Width	150 mm
Depth	193 mm
Height	86 mm
Weight	2.39 kg
Certificates
80 PLUS certification	80 PLUS Platinum
Energy Star certified	Yes
Safety	CE, CB, TÃœV, FCC, cTUVus, RCM, CU
Certification	ErP, WEEE
RoHS compliance	Yes
Packaging data
Package depth	514 mm
Package width	305 mm
Package height	378 mm
Package type	Box
Package weight	4.47 kg

1. Non-Returnable Products: Once an order has been processed, items that are not classified as 3D memory products are non-returnable and cannot be cancelled.

2. Restocking Charges: A restocking fee of up to 25% may apply to eligible returns. The exact percentage depends on the product category.

3. Product Condition: All products are supplied in refurbished condition by default, unless explicitly stated as brand new retail stock prior to purchase.

4. Dispatch & Availability: Most orders are dispatched within 24 hours, subject to stock availability. For urgent or same-day dispatch requests, please contact our customer service team at (0)203-411-0694.

5. Manufacturer Part Numbers: Leading manufacturers such as Dell, HP, IBM, and Compaq may assign multiple identifiers to the same product, including Spare Part Numbers (Spare P/N#) or Field Replaceable Unit Numbers (FRU#). Items received may carry either designation and will be considered equivalent and fully compatible. For clarification, please contact our sales team.

6. Warranty Policy: All items are covered by a 30-day limited warranty, valid for replacement only in cases of DOA (Dead on Arrival), and must match the original part number. Certain storage devices may include an extended 90-day warranty—confirmation prior to purchase is recommended. Additional warranty options, including manufacturer or extended warranties, may be available upon request.

7. Drivers & Installation Media: Products are sold in bulk format and generally do not include installation media or drivers. If required, please confirm availability before placing your order.

8. Shipping Costs: Shipping charges are automatically calculated based on lighter items such as memory modules and hard drives (under 5 lbs). Heavier equipment, including servers, racks, or motherboards, may incur additional shipping costs. We recommend confirming shipping fees prior to order completion. In cases of discrepancies, our team will contact you to revise the charges accordingly.

9. Product Images: All product images are for illustrative purposes only. The actual item delivered may vary in appearance.

10. Packaging Disclaimer: Items may be shipped in bulk or non-retail packaging, particularly for large volume or consolidated orders.

11. End-of-Life (EOL) Products: Discontinued products may be substituted with equivalent parts that match the same FRU and functionality.

12. Refurbished Printers: Refurbished printers may not include toner cartridges, or may be supplied with partially used cartridges.

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Need Assistance?

If you require further clarification or have any concerns, please contact us prior to placing your order:
📧 support@selectechnology.co.uk
📞 (0)203-511-0854

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