be quiet! Straight Power 11 power supply unit 450 W 20+4 pin
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be quiet! Straight Power 11 power supply unit 450 W 20+4 pin ATX ATX Black

be quiet! Straight Power 11, 450 W, 100 - 240 V, 500 W, 50 - 60 Hz, 6 A, Active

€106.49 Tax included

€87.29 Tax excluded

Shipping excluded
DELIVERY WITHIN 4 WORKING DAYS (Saturdays and Sundays excluded) Orders placed after 1pm will be processed the next day.
check Immediate shipment


● Prodotto nuovo.
● Garanzia 48 mesi.
● Soddisfatto o rimborsato 30 giorni.

● Lavorazione entro 1/2 giorni lavorativi.
● Consegna entro 4 giorni lavorativi.
● Sabato e Domenica esclusi.
● Gli ordini effettuati dopo le 13.00 verranno elaborati il giorno seguente.
World Class Quiet and Efficiency
be quiet! Straight Power 11 450W 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 fan
- Big funnel-shaped fan opening of the PSU case for high airflow intake
- Wire-free on the DC side inside the PSU for enhanced cooling and longevity
- Full cable management for maximum build flexibility
- 80PLUS® Gold certification with an efficiency of up to 93%
- Advanced stability and voltage regulation thanks to LLC, SR and DC-to-DC
- Four high-performance 12V-rails
- Powerful multi-GPU support with two PCI-Express connectors
- Japanese 105°C-rated capacitors ensure stability and reliability
- Power signal stability unmatched in its class
- ErP and Energy Star 6.1 ready
- 5-year manufacturer’s warranty
- Product conception, design and quality control in Germany

be quiet! Straight Power 11. Total power: 450 W, AC input voltage: 100 - 240 V, Peak power: 500 W. Motherboard power connector: 20+4 pin ATX, Motherboard power cable length: 60 cm, SATA power cable length: 550 mm. Purpose: PC, Power supply unit (PSU) form factor: ATX, 80 PLUS certification: 80 PLUS Gold. Product colour: Black, Fan diameter: 13.5 cm, Number of fans: 1 fan(s). Width: 150 mm, Depth: 160 mm, Height: 86 mm
Total power450 W
Peak power500 W
AC input voltage100 - 240 V
AC input frequency50 - 60 Hz
Input current6 A
Power factor0.99
Power Factor Correction (PFC) typeActive
Combined power (+3.3V)120 W
Combined power (+12V)450 W
Combined power (+5V)120 W
Combined power (-12V)3.6 W
Combined power (+5Vsb)15 W
Max output current (+3.3V)24 A
Max output current (+12V1)18 A
Max output current (+12V2)18 A
Max output current (+12V4)19 A
Max output current (+5V)24 A
Max output current (-12V)0.3 A
Max output current (+5Vsb)3 A
Power protection featuresOver current, Over power, Over voltage, Overheating, Short circuit, Under voltage
Ports & interfaces
Motherboard power connector20+4 pin ATX
Motherboard power cable length60 cm
Number of PATA power connectors3
SATA power cable length550 mm
PCI Express power connectors (6+2 pin)2
PCI Express power cable length60 cm
CPU power connector (4+4 pin)Y
CPU power cable length70 cm
Floppy disk drive connectorY
Cabling typeModular
Power supply unit (PSU) form factorATX
80 PLUS certification80 PLUS Gold
ATX version2.4
Silent modeY
Bearing technologyFDB
CertificationCE, FCC, TÜV, cTUVus, RCM, BSMI, CU
Product colourBlack
Fan diameter13.5 cm
Number of fans1 fan(s)
On/off switchY
Weight & dimensions
Width150 mm
Depth160 mm
Height86 mm
Weight1.51 kg
Packaging data
Package width248 mm
Package depth328 mm
Package height102 mm
Package weight2.74 kg
Technical details
Sustainability certificatesRoHS, ENERGY STAR
Other features
Screws includedY
Cable ties includedY
Noise level (silent mode, <30%)9.4 dB
Noise level (quiet mode, 50%)9.8 dB
Noise level (full-load mode, 100%)12.3 dB
Cable managementY
Product colour
Total power
450 W
AC input voltage
100 - 240 V
Motherboard power connector
20+4 pin ATX
Power supply unit (PSU) form factor
80 PLUS certification
80 PLUS Gold


All shipments are processed from our offices in Rome and are handled by leading international couriers based on the final destination, weight and value of the order.
Orders are processed within 2 business days.
The delivery of the products is carried out within 4 working days from the confirmation of the order (you will receive an email containing the tracking code of your order).

The courier delivers from Monday to Friday between 8.30 and 18.00.
It is not possible in any way to fix the time and / or day of delivery of the products, nor is it possible to request delivery to post office boxes.

The contribution for transport costs calculated during the order may vary in cases where the bulk and / or weight of the goods exceeds the minimum weight / overall dimensions.

Should the shipping address differ from the billing address, please specify it in the notes accompanying the order to avoid unnecessary delays.


To exercise the right of withdrawal, you must inform us (APPIEFFE GROUP SRL, Viale Cesare Pavese 267, 00144 Rome, Tel +39 06 92939466, email: of your decision to withdraw from this contract by means of a declaration explicit (e.g. letter sent by post, fax or e-mail). To this end, you can use the attached withdrawal form, but it is not mandatory. To meet the withdrawal deadline, it is sufficient for you to send the relevant communication
to exercise the right of withdrawal before the expiry of the withdrawal period.

Pursuant to art. 5 of Legislative Decree 206/2005, the Customer who purchases goods for purposes not related to his professional activity and therefore makes the purchase indicating the Fiscal Code and not the VAT number, has the right to withdraw from the remote purchase contract within 14 calendar days starting from receipt of the order (Legislative Decree 21/2014 of 21 February 2014) by preferably sending a communication by registered letter with return receipt at the address:

Viale Cesare Pavese 267
00144 Rome

or at the email address or by fax at +39 06 99367459.

It is possible to send a PEC (Certified Electronic Mail) instead of the registered letter to the address only if this is sent in turn from a certified email address.

It is also possible to request the right of withdrawal via the "GOODS RETURN" link in the customer profile of our site, once logged in with login and password, without necessarily sending registered letters or other communications.

The refund will be made within 14 calendar days from the arrival of the object at our office.

NB: The costs of returning defective or non-compliant goods will be at our expense.
APPIEFFE GROUP SRL is not liable for any damage that the goods may suffer during transport, nor for any theft, loss or tampering that may occur in this phase. It is therefore suggested to make insured shipments.