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be quiet Straight Power 11 Platinum 850W Power Supply

80 Plus Platinum - Fully Modular

PB Tech price
PB Tech price
$ 294 .78
 +GST
$ 339 .00
 inc GST

Out of stock

Limited Supply - only stock on hand available, when sold out we may not be able to source this product again.

be quiet Straight Power 11 Platinum 850W Power Supply

80 Plus Platinum - Fully Modular

  • Brand: be quiet
  • MPN: BN925
  • Part #: PSUBQT70850
  • UPC:
1
PB Tech price
$ 294 .78 $ 339 .00
 +GST  inc GST

No store stock available. See in-stock alternatives

Click & Collect: Collect unavailable
Delivery: Out of stock When will I receive it?
  • Brand: be quiet
  • MPN: BN925
  • Part #: PSUBQT70850
  • UPC:

Max Output Power

850W

PSU Form Factor

ATX

80 Plus Rating

Platinum

Modular

Full

Colour

Black

16-Pin GPU Connector

No

PSU Length

170mm

PSU ATX Version

ATX12V 2.x

Product is out of stock. View similar products in-stock at PB Tech

What PB Tech customers are saying about this product...

See More Reviews

"This PSU is awesome at powering my build and I have had no i ...view more"

AA
By: AtsuA 25/03/24

Features



 

STRAIGHT POWER 11 850W Platinum - WORLD CLASS QUIET AND EFFICIENCY

be quiet! Straight Power 11 Platinum 850W raises the bar for systems that demand virtually inaudible operation and outstanding efficiency.

- 80 PLUS® Platinum efficiency (up to 94%)
- Virtually inaudible Silent Wings 3 135mm fan
- Funnel-shaped fan opening of the PSU case for high airflow intake
- Wire-free inside the PSU on the DC side for enhanced cooling and longevity
- Modular cables for maximum build flexibility
- Four PCIe connectors for overclocked high-end GPUs
- Japanese 105°C-rated capacitors ensure stability and reliability
- ErP and Energy Star 7.0 ready

80 PLUS® PLATINUM CERTIFIED - One of the highest efficiency certificates available

Straight Power 11 Platinum 850W is certified with 80 PLUS Platinum efficiency, reaching up to 94%. This provides lots of benefits for your high-end system, including less power consumption and an overall cooler and quieter operation. The standby drain is below 0.1 watts.

 

SILENT WINGS 3 FAN - Provides virtually inaudible operation

The high-end Silent Wings 3 fan delivers best-of-class airflow yet produces very little noise. This is thanks to its unique, optimized fan blade design along with an advanced fluid-dynamic bearing and 6-pole fan motor that largely eliminates operational noise, has a super-long life and minimal power consumption.

 

FUNNEL-SHAPED FAN OPENING - Higher cooling performance

The fan inlet of the Straight Power 11 Platinum 850W is funnel-shaped. It causes an increased throughput of air which benefits to a higher cooling performance.

 

WIRE-FREE DESIGN INSIDE THE PSU - Pushing the longevity of components to a maximum

An absolute innovation: The Straight Power 11 Platinum 850W is wire-free on the DC side inside the PSU body. This results in improved cooling airflow and less signal disturbance, simply because of a lack of wiring, and ultimately pushes the lifetimes of the components to a maximum.

 

MODULAR CABLES - Utmost convenience and compatibility

Thanks to the modular cables, all cables that serve no purpose in the system are left out. For this reason, systems always appear very tidy. At the same time installation is performed much more conveniently. A smoother airflow results from the uncluttered layout of the system, which means lower noise and temperatures prevail inside the case.

 

STATE-OF-THE-ART TECHNOLOGIES - Rock-steady signal stability and efficiency

Experience the most technologically advanced power supply be quiet! has ever built! Using an advanced full bridge, LLC and Synchronous Rectifier (SR) technology it provides unmatched signal stability and unbeatable power efficiency. The DC-to-DC conversion for tight voltage regulation, even under heavy cross-loading conditions ensures reliable operation for the next generation of processors and graphics cards.

 

JAPANESE 105° CAPACITORS - A testament to high quality

Only the best components are used in Straight Power 11 Platinum 850W. That is why we have built only high-quality Japanese capacitors into the PSU chassis. They are rated to 105°C, ensuring stability, reliability and a long operating life.

 

Fan Noise

 

Cables

Specifications

General data

Model

Straight Power 11 Platinum 850W

Continuous power (W)

850

Peak power (W)

920

Form factor

Version 2.51

Form factor EPS 12V

Version 2.92

Modular Cable management

Yes

Topology

Full bridge + LLC + SR + DC/DC

Wire-free design (DC-side)

Yes

Voltage (Vac)

100 - 240

Frequency (Hz)

50 - 60

Input current (A)

10 / 5

PFC

active

Power factor at 100% load

>0.99

Compliant to Intel C6/C7

Yes

Power consumption in standby (W)

0.16

Average life time (h / 25°C)

100,000

Operating temperature up to (°C)

40

Output

12V rails (multi-rail operation)

4

12V single rail operation

-

Overclocking key

-

+3.3V (A)

25

+5V (A)

25

+12V1 (A)

21

+12V2 (A)

21

+12V3 (A)

26

+12V4 (A)

26

+12V5 (A)

-

+12V6 (A)

-

-12V (A)

0.5

+5Vsb (A)

3

Max. combined power 12V (W)

849.6

Max. combined power 3.3V + 5V (W)

150

Hold-up time at 100% load (ms)

22

Power good signal

100 - 150ms

Fan / Cooling technology

Fan type

Silent Wings 3

+SilentWings

Yes

Motor technology

6-pole fan motor

Bearing technology

FDB

Fan size (mm)

135

Max. fan speed (rpm), temperature-dependent

2100

Temperature control for case fans

-

dB(A) at 20% load

7.7

dB(A) at 50% load

7.9

dB(A) at 100% load

22

Protection

OCP (over current protection)

Yes

OVP (over Voltage protection)

Yes

UVP (under Voltage protection)

Yes

SCP (short circuit protection)

Yes

OTP (over temperature protection)

Yes

OPP (over power protection)

Yes

SIP (Surge & Inrush Protection)

Yes

Safety certification

CE

Yes

CB

Yes

TÜV

Yes

FCC

Yes

cRUus

-

cTUVus

Yes

RCM (Australia)

Yes

BSMI

Yes

CU (Russia)

Yes

CCC

Yes

Eco / Efficiency

80 PLUS certification

Platinum

Efficiency (%) at 230V, 20% load

92

Efficiency (%) at 230V, 50% load

94

Efficiency (%) at 230V, 100% load

92.7

Environmental directives

Energy Star

7.0

ErP

Yes

WEEE

Yes

RoHs

Yes

Cables / Connectors

Nvidia® SLI (RTX 3090) ready

-

Cable management

Modular

Sleeved cables

Sleeved cables

Flat cables

-

Cable length to mainboard (cm)

60

Cable length to first connector (cm)

55

Maximum cable length (cm)

115

All-in-one cable (SATA/PATA/FDD)

-

No. of cables

11

ATX-Motherboard (20+4-pin)

1

P8 (CPU)

1

P4+4 (CPU)

1

P4 (CPU)

-

PCI-e 6-pin (GPU)

-

PCI-e 6+2-pin (GPU)

4

PATA

4

SATA

11

FDD (Floppy)

1

External fan connectors

-

Casing

Dimensions without cable (L x W x D), (mm)

170 x 150 x 86

Weight (kg)

1.84

Color

Black

Accessories

Screws

Yes

Cable ties

Yes

User manual languages

DE, EN, ES, FR, PL, RU

Manufacturer Part No:
BN925
Brand:
Product Type:
Power Supply
UPC
-
Product Family:
Straight Power
Shipping Weight:
3.5 kg
PB Part No:
PSUBQT70850
Product Model:
11 Platinum
Warranty: 12 months *
* Warranty period is as stated above unless the manufacturer has chosen to specify a longer period.
All warranties are return to base unless otherwise specified.

Reviews

5 out of 5 Stars Based on 1 review
5 Stars
1
4 Stars
0
3 Stars
0
2 Stars
0
1 Stars
0

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A great purchase for the price, only had one issue

This PSU is awesome at powering my build and I have had no issues with it running.

However, as this is a fully modular unit, you might have trouble plugging the cable at the right spot since the manual did not tell me which slot in the PSU I should plug each cable in so I had to result to searching it up on YouTube. Maybe I didn't look hard enough.

Overall it performs great for the price I got it at.

AA
By: AtsuA 25/03/24
0 out of 0 users found this review helpful
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Delivery & Pick-up

Potential courier delays: Please note that due to the high volumes currently within the NZ courier network there is potential for some deliveries to be delayed.

Delivery Estimates

The estimated time to ship for each product we sell is detailed on the individual product page just underneath the price. From when your items ship, products typically arrive within 1-2 working days for North Island deliveries and 2-3 working days for South Island deliveries. Rural deliveries may take an extra working day. Bulk & hazard deliveries may take an extra 2-4 working days.

Next Day Delivery

Need your order in a hurry? PB Tech offers next day delivery for local Auckland addresses. Simple place your order before 4pm (provided your items are in stock) and select our next day delivery option in the checkout. T&C's apply. Learn more about Next Day Delivery.

Same Day Delivery

Need your order in a hurry? PB Tech offers same day delivery for Auckland, Hamilton, Wellington and Christchurch. Simple place your order before 1pm (provided your items are in stock) and select one of our same day delivery options 'Evening Delivery' or 'Urgent 3-hour Delivery' in the checkout. T&C's apply. Learn more about Same Day Delivery.

Shipping Costs

Shipping costs vary based on your location and the items being shipped and in some cases shipping may even be FREE.

To calculate what the shipping costs will be for your order, add the items you are interested in to your cart, view the Shopping Cart page, and select your 'Delivery Area' to calculate the shipping cost.

Shipping Security & Insurance

All orders shipped by PB Tech are sent via a courier with a signature required for each delivery. In some cases, and only where you have given the courier company permission to leave orders at a designated location, your order may be delivered without requiring a signature. All orders sent by PB Tech are fully insured in the unlikely event that your item(s) are damaged or go missing in transit.

1 Hour Store Pick-up / Click & Collect

You can pick-up your online order from any of our stores nationwide. You can select which store you want to pick up from at the checkout. Provided the store you select has stock and there's no hold-ups with payment we will have your order ready within 1 hour (during normal trading hours for that store) otherwise it may take up to 5 working days to transfer the stock to the store so your order can be fulfilled. Learn more about our Click & Collect process.

Overseas Shipments

PB Tech regularly ships overseas to Australia and beyond. If you are located in Australia, you can order directly from our Australian site www.pbtech.com/au. If you are from another country you can order from www.pbtech.com

Returns & Warranty

7 day right of exchange

If you change your mind after making a purchase, or realise you have ordered the incorrect item, you can enjoy the peace of mind that we offer a 7 day exchange policy.

To exchange a product, goods must be sealed and unopened, with packaging in original condition, accompanied by a valid receipt dated no more than 7 calendar days from when you request an exchange. A 20% restocking fee may be applied where goods are not returned in sealed, original packaging condition.

If there is not a suitable product that can be exchanged for your returned item you will be offered a credit on your account or gift card based on the value paid at the time of purchase. Items purchased on finance cannot be exchanged for a gift card.

 

Hassle free warranty service

If your product develops a fault within the manufacturer warranty period, you can either contact the manufacturer directly (some manufacturers provide a high level of warranty service - including free pickup or in some cases onsite repair), or return to one of our services centres / stores. Where the product has been directly imported by PB Tech, you need to contact us directly or present the product at any one of our service centres / stores together with your proof of purchase.

If your product develops a fault outside of the manufacturer warranty or PB Tech warranty period, we offer a full repair service and are an authorised repair agent for leading brands such as Samsung, HP, Toshiba, Lenovo and more.

 

Returning a product / making a warranty claim

To contact the manufacturer directly to troubleshoot your product or to request a warranty repair, please view the list of manufacturer / brand warranty contacts (for products imported directly by PB Tech please return to us directly by completing our request a return form).

To return a product to PB Tech directly, please complete our request a return form.

Or view our returns policy for more information.

be quiet Straight Power 11 Platinum 850W Power Supply 80 Plus Platinum - Fully Modular

  • Brand: be quiet
  • MPN: BN925
  • Part #: PSUBQT70850
PB Tech price $294.78 Excluding GST PB Tech price $339.00 Including GST

Date Created: 22:06, 21-09-2025
Product URL: https://www.pbtech.co.nz/product/PSUBQT70850/be-quiet-Straight-Power-11-Platinum-850W-Power-Sup
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Tauranga 0
New Plymouth 0
Palmerston North 0
Petone 0
Wellington 0
Auckland - Head Office 0
Auckland - East Tamaki Warehouse 0
Christchurch - Hornby 0
Christchurch - Christchurch Central 0
Dunedin 0

Features



 

STRAIGHT POWER 11 850W Platinum - WORLD CLASS QUIET AND EFFICIENCY

be quiet! Straight Power 11 Platinum 850W raises the bar for systems that demand virtually inaudible operation and outstanding efficiency.

- 80 PLUS® Platinum efficiency (up to 94%)
- Virtually inaudible Silent Wings 3 135mm fan
- Funnel-shaped fan opening of the PSU case for high airflow intake
- Wire-free inside the PSU on the DC side for enhanced cooling and longevity
- Modular cables for maximum build flexibility
- Four PCIe connectors for overclocked high-end GPUs
- Japanese 105°C-rated capacitors ensure stability and reliability
- ErP and Energy Star 7.0 ready

80 PLUS® PLATINUM CERTIFIED - One of the highest efficiency certificates available

Straight Power 11 Platinum 850W is certified with 80 PLUS Platinum efficiency, reaching up to 94%. This provides lots of benefits for your high-end system, including less power consumption and an overall cooler and quieter operation. The standby drain is below 0.1 watts.

 

SILENT WINGS 3 FAN - Provides virtually inaudible operation

The high-end Silent Wings 3 fan delivers best-of-class airflow yet produces very little noise. This is thanks to its unique, optimized fan blade design along with an advanced fluid-dynamic bearing and 6-pole fan motor that largely eliminates operational noise, has a super-long life and minimal power consumption.

 

FUNNEL-SHAPED FAN OPENING - Higher cooling performance

The fan inlet of the Straight Power 11 Platinum 850W is funnel-shaped. It causes an increased throughput of air which benefits to a higher cooling performance.

 

WIRE-FREE DESIGN INSIDE THE PSU - Pushing the longevity of components to a maximum

An absolute innovation: The Straight Power 11 Platinum 850W is wire-free on the DC side inside the PSU body. This results in improved cooling airflow and less signal disturbance, simply because of a lack of wiring, and ultimately pushes the lifetimes of the components to a maximum.

 

MODULAR CABLES - Utmost convenience and compatibility

Thanks to the modular cables, all cables that serve no purpose in the system are left out. For this reason, systems always appear very tidy. At the same time installation is performed much more conveniently. A smoother airflow results from the uncluttered layout of the system, which means lower noise and temperatures prevail inside the case.

 

STATE-OF-THE-ART TECHNOLOGIES - Rock-steady signal stability and efficiency

Experience the most technologically advanced power supply be quiet! has ever built! Using an advanced full bridge, LLC and Synchronous Rectifier (SR) technology it provides unmatched signal stability and unbeatable power efficiency. The DC-to-DC conversion for tight voltage regulation, even under heavy cross-loading conditions ensures reliable operation for the next generation of processors and graphics cards.

 

JAPANESE 105° CAPACITORS - A testament to high quality

Only the best components are used in Straight Power 11 Platinum 850W. That is why we have built only high-quality Japanese capacitors into the PSU chassis. They are rated to 105°C, ensuring stability, reliability and a long operating life.

 

Fan Noise

 

Cables

Specifications

General data

Model

Straight Power 11 Platinum 850W

Continuous power (W)

850

Peak power (W)

920

Form factor

Version 2.51

Form factor EPS 12V

Version 2.92

Modular Cable management

Yes

Topology

Full bridge + LLC + SR + DC/DC

Wire-free design (DC-side)

Yes

Voltage (Vac)

100 - 240

Frequency (Hz)

50 - 60

Input current (A)

10 / 5

PFC

active

Power factor at 100% load

>0.99

Compliant to Intel C6/C7

Yes

Power consumption in standby (W)

0.16

Average life time (h / 25°C)

100,000

Operating temperature up to (°C)

40

Output

12V rails (multi-rail operation)

4

12V single rail operation

-

Overclocking key

-

+3.3V (A)

25

+5V (A)

25

+12V1 (A)

21

+12V2 (A)

21

+12V3 (A)

26

+12V4 (A)

26

+12V5 (A)

-

+12V6 (A)

-

-12V (A)

0.5

+5Vsb (A)

3

Max. combined power 12V (W)

849.6

Max. combined power 3.3V + 5V (W)

150

Hold-up time at 100% load (ms)

22

Power good signal

100 - 150ms

Fan / Cooling technology

Fan type

Silent Wings 3

+SilentWings

Yes

Motor technology

6-pole fan motor

Bearing technology

FDB

Fan size (mm)

135

Max. fan speed (rpm), temperature-dependent

2100

Temperature control for case fans

-

dB(A) at 20% load

7.7

dB(A) at 50% load

7.9

dB(A) at 100% load

22

Protection

OCP (over current protection)

Yes

OVP (over Voltage protection)

Yes

UVP (under Voltage protection)

Yes

SCP (short circuit protection)

Yes

OTP (over temperature protection)

Yes

OPP (over power protection)

Yes

SIP (Surge & Inrush Protection)

Yes

Safety certification

CE

Yes

CB

Yes

TÜV

Yes

FCC

Yes

cRUus

-

cTUVus

Yes

RCM (Australia)

Yes

BSMI

Yes

CU (Russia)

Yes

CCC

Yes

Eco / Efficiency

80 PLUS certification

Platinum

Efficiency (%) at 230V, 20% load

92

Efficiency (%) at 230V, 50% load

94

Efficiency (%) at 230V, 100% load

92.7

Environmental directives

Energy Star

7.0

ErP

Yes

WEEE

Yes

RoHs

Yes

Cables / Connectors

Nvidia® SLI (RTX 3090) ready

-

Cable management

Modular

Sleeved cables

Sleeved cables

Flat cables

-

Cable length to mainboard (cm)

60

Cable length to first connector (cm)

55

Maximum cable length (cm)

115

All-in-one cable (SATA/PATA/FDD)

-

No. of cables

11

ATX-Motherboard (20+4-pin)

1

P8 (CPU)

1

P4+4 (CPU)

1

P4 (CPU)

-

PCI-e 6-pin (GPU)

-

PCI-e 6+2-pin (GPU)

4

PATA

4

SATA

11

FDD (Floppy)

1

External fan connectors

-

Casing

Dimensions without cable (L x W x D), (mm)

170 x 150 x 86

Weight (kg)

1.84

Color

Black

Accessories

Screws

Yes

Cable ties

Yes

User manual languages

DE, EN, ES, FR, PL, RU

Date Created: 22:06, 21-09-2025
Product URL: https://www.pbtech.co.nz/product/PSUBQT70850/be-quiet-Straight-Power-11-Platinum-850W-Power-Sup