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

World Class Quiet and Efficiency be quiet! Straight Power 11 850W raises the bar for systems that demand virtually inaudible operation without power quality compromises. This PSU is clearly the best choice for super silent systems. Virtually inaudible operation thanks to a SilentWings® 3 135mm fanBig funnel-shaped fan opening of the PSU case for high airflow intakeWire-free on the DC side inside the PSU for enhanced cooling and longevityFull cable management for maximum build flexibility80PLUS® Gold certification with an efficiency of up to 93%Advanced stability and voltage regulation thanks to LLC, SR and DC-to-DCFour high-performance 12V-railsPowerful multi-GPU support with four PCI-Express connectorsJapanese 105°C-rated capacitors ensure stability and reliabilityPower signal stability unmatched in its classErP and Energy Star 6.1 ready5-year manufacturer’s warrantyProduct conception, design and quality control in Germany Virtually inaudible SilentWings® 3 135mm fanWire-free design inside the PSU80PLUS® Gold efficiency of up to 93%Convenient full cable management

Power
Total power	850 W
Peak power	920 W
AC input voltage	100 - 240
AC input frequency	50 - 60
Input current	10
Power factor	0.99
Power Factor Correction (PFC) type	Active
Combined power (+3.3V)	150 W
Combined power (+12V)	849.6 W
Combined power (+5V)	150 W
Combined power (-12V)	6 W
Combined power (+5Vsb)	15 W
Max output current (+3.3V)	25 A
Max output current (+12V1)	21 A
Max output current (+12V2)	21 A
Max output current (+12V4)	26 A
Max output current (+12V3)	26 A
Max output current (+5V)	25 A
Max output current (-12V)	0.5 A
Max output current (+5Vsb)	3 A
Power protection features	Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage
Hold time	21.1 ms
Efficiency	93%
Cooling
Fan diameter	13.5 cm
Number of fans	1 fan(s)
Ports & interfaces
Motherboard power cable length	60 cm
SATA power cable length	550 mm
PCI Express power cable length	60 cm
CPU power cable length	70 cm
Motherboard power connector	20+4 pin ATX
Number of SATA power connectors	11
Number of PATA power connectors	4
PCI Express power connectors (6+2 pin)	4
CPU power connector (4+4 pin)	Yes
Floppy disk drive connector	Yes
Cabling type	Modular
Performance
Power supply unit (PSU) form factor	ATX
Silent mode	Yes
Noise level (quiet mode, 50%)	10.61 dB
Noise level (silent mode, <30%)	9.71 dB
Noise level (full-load mode, 100%)	24.98 dB
Purpose	PC
ATX version	2.4
EPS version	2.92
On/off switch	Yes
Bearing technology	FDB
Design
Colour of product	Black
Illumination	No
Technical details
Cable management	Yes
Weight & dimensions
Width	150 mm
Depth	170 mm
Height	86 mm
Weight	1.8 kg
Certificates
80 PLUS certification	80 PLUS Gold
Energy Star certified	Yes
Certification	CE, FCC, TÃœV, cTUVus, RCM, BSMI, CU
RoHS compliance	Yes
Packaging data
Package depth	328 mm
Package width	248 mm
Package height	102 mm
Package weight	3.38 kg
Packaging content
Screws included	Yes
Cable ties included	Yes
Manual	Yes
Other features
Cable management	Yes

At IT Networks Trade, we aim to deliver reliable IT hardware and components with transparency and quality assurance. Please review the following terms and conditions before placing your order:

1. 1. Non-Returnable Products:

      • Any product that is not a 3D memory item becomes non-returnable and non-cancellable once processed.

      • A restocking fee of up to 25% may apply on certain products, depending on the product category.

   2. Product Condition:

      • All products are shipped as refurbished by default, unless selected otherwise for new retail condition at the time of order.

   3. Shipping & Availability:

      • Items are typically dispatched within 24 hours, subject to stock availability.

      • For same-day shipping requests, please contact our customer support at (512) 881 3587.

      • Our online shipping calculator estimates costs for items under 5 lbs. For heavier equipment (e.g., servers, motherboards, racks), shipping costs may differ — our customer service team will confirm before finalizing the order.

   4. Manufacturer Part Numbers:

      • Many manufacturers (such as HP, Dell, IBM, and Compaq) assign corresponding Spare Part Numbers (Spare P/N#) or Field Replacement Unit Numbers (FRU#) to their products.

      • The received item may display one of these numbers, which are valid replacements for the ordered part.

      • For assistance verifying compatibility, contact our Sales Department.

   5. Warranty Policy:

      • Most items include a 30-day limited DOA (Dead on Arrival) exchange warranty for replacement with the same part only.

      • Some drives may carry a 90-day warranty—please confirm with our sales team.

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   6. Product Packaging & Accessories:

      • All items are bulk equipment and typically do not include drivers or CDs. Contact us to confirm availability if you require installation media.

      • Product images are for illustrative purposes only—the actual product may differ slightly.

      • Packaging may vary (e.g., OEM or plain bulk packaging) depending on stock and order quantity.

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   7. End-of-Life (EOL) Products:

      • EOL items that are no longer in production may be replaced with a compatible equivalent featuring the same FRU number and functionality.

   8. Contact & Support:

      • For any concerns or questions regarding product conditions, shipping, or compatibility, please reach out to:
        📧 support@itnetworkstrade.com
        ☎️ (512) 881 3587

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