SKU: 41157401471

be quiet! System Power 11 650W is ATX 3.1 compliant and PCIe 5.1 compatible, 5-year manufacturer's warranty

Sale price$53.52 Regular price$59.47
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Description

be quiet! System Power 11 650W is ATX 3.1 compliant and PCIe 5.1 compatible, 5-year manufacturer's warrantySYSTEM POWER 11 650W Proven Reliability, Quiet Operation System Power 11 is the ATX 3. 1 PSU for value oriented PC builders that do not want to pass on reliability and quietness. Highlights ATX 3. 1 PSU with support for PCIe 5. 1 GPUs and GPUs with 6+2 pin connectors Temperature controlled 120mm quality fan reduces system noise Rock solid stability with a strong 12V rail Tight voltage regulation using DC to DC technology Up to one PCIe 5. 1 12V 2x6

SYSTEM POWER 11 650W

Proven Reliability, Quiet Operation System Power 11 is the ATX 3.1 PSU for value-oriented PC builders that do not want to pass on reliability and quietness.

Highlights

ATX 3.1 PSU with support for PCIe 5.1 GPUs and GPUs with 6+2 pin connectors
Temperature-controlled 120mm quality fan reduces system noise
Rock-solid stability with a strong 12V-rail
Tight voltage regulation using DC-to-DC technology
Up to one PCIe 5.1 12V-2x6 600W and up to 3 PCIe 6-2 connectors for high-end GPUs
Dependable operation to support powerful GPUs
Stand-by drain of less than 0.15 watts
80 PLUS Bronze efficiency (up to 90.0 %)
5-year manufacturer’s warranty
Product conception, design and quality control in Germany

General

Model
System Power 11 650 W

Continuous power (W)
550

Peak power (W)
No

Form factor
Version 3.1

Form factor EPS 12V
Version 2.92

Topology
Double forward + DC-DC

Digitally controlled
No

Voltage (Vac)
200 - 240

Frequency (Hz)
50

Input current (A)
5

Power factor at 100% load
>0.98

Modern standby
Yes

Power consumption in standby (W)
<0.1

Average life time (h / 25°C)
>100,000

Operating temperature up to (°C)
40

Efficiency
80 PLUS certification
Efficiency (%) at 230V, 2% load63.9 Bronze
Efficiency (%) at 230V, 10% load 84.4 Bronze
Efficiency (%) at 230V, 20% load 88.6 Bronze
Efficiency (%) at 230V, 50% load 89.7 Bronze
Efficiency (%) at 230V, 100% load 86.7 Bronze

Fan and cooling technology

Cybenetics Noise Rating
No

Fan
Silence-optimized be quiet! fan

Fan size (mm)
120

Bearing technology
Rifle

Motor technology
4-pole fan motor

Max. fan speed (rpm)
2100

dB(A) at 10% load
10.9

dB(A) at 20% load
10.9

dB(A) at 50% load
11.8

dB(A) at 100% load
30.9

Output

Multi-rail operation (12V rails)
No

12V single rail operation
Yes

Overclocking key
No

+3.3V (A)
20

+5V (A)
20

+12V1 (A)
54.17

+12V2 (A)
no

+12V3 (A)
No

+12V4 (A)
No

+12V5 (A)
No

+12V6 (A)
No

-12V (A)
0.3

+5Vsb (A)
3

Max. combined power 12V (W)
650

Max. combined power 12V-2x6 (W)
450

Max. combined power 3.3V + 5V (W)
120

Hold-up time at 100% load (ms)
17.04

Hold-up time at 80% load (ms)
21.10

Power good signal (ms)
100 - 150

Cables and connectors

Modular cables
No

Sleeved cables
P24

Flat cables
P4+4, P4, PCIe, drives

Maximum cable length (cm)
55

Cable length to motherboard (cm)
79

No. of cables
8

ATX-Motherboard (20+4-pin)
1

P4+4 (CPU)
1

P8 (CPU)
No

P4 (CPU)
1

12V-2x6 cables
1

PCI-e 6+2-pin (GPU)
2

PCI-e 6-pin (GPU)
No

SATA
5

PATA
1

FDD (Floppy)
No

Protection

OTP (over temperature protection)
Yes

OCP (over current protection)
Yes

OPP (over power protection)
Yes

SCP (short circuit protection)
yes

OVP (over Voltage protection)
Yes

UVP (under Voltage protection)
Yes

SIP (Surge & Inrush protection)
Yes

Safety certification

BSMI
No

CB
No

CCC
No

CE
Yes

cRUus
No

cTUVus
No

CU
Yes

FCC
No

RCM
No

TÜV
Yes

UKCA
Yes

IRAM
No

Environmental directives

Energy Star
8.0

ErP
Yes

WEEE
Yes

RoHS
Yes

Triman
No

Scope of delivery

Thumb screws
No

Screws
Yes

Cable ties
Yes

Velcro cable ties
No

User manual languages
No

OCK slot bracket with switch / OCK jumper
No

SFX-to-ATX adapter bracket
No

Casing

Dimensions without cable (L x W x H), (mm)
86 x 150 x 140

Weight (kg)
1.97

Color
Black

Logistics data and RRP

Dimensions, package (L x W x H), (mm)
268 x 195 x 97

Gross weight, package (kg)
2.4

Pieces per packaging unit
6

Dimensions, shipping box (L x W x H), (mm)
556 x 311 x 218

Gross weight, shipping box (kg)
15.2

Service

Warranty (Years)
5
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 41157401471

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4.4 ★★★★★
Based on 14 reviews
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Product Reviews
D
Verified Purchase
DFS
Lake Worth, US
★★★★★ 5
Love this Sweater!
Size: Medium, Color: Black
Had my doubts, but this sweater is great! The color is great, follow the care instructions, and this sweater will not let you down. Feels great, fits great, no shrinkage, and looks excellent. Does it pill? Yes, expect it, but I also bought the BEAUTURAL Fabric Shaver and Lint Remover, Sweater Defuzzer with 2-Speeds. And it works beautifully not only on this sweater when needed, but also on my winter beanies and other clothes, which now look like new. My advice then. Buy the de-piller and buy this Sweater. I have purchased six, and I love these sweaters, especially now that I know how to best care for and keep them like new.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 4, 2025
Y
Verified Purchase
Yoga MamaLV
Los Angeles, US
★★★★★ 5
SEXY BLACK TURTLENECK SWEATER!
Size: X-Large, Color: Black
This is soft, looks amazing on my husband who is a big guy (6’2” @245) so not everything fits all the time. Sleeves are long enough, and the sweater looks great on him. Soft material, nice collar rate 10/10. Will try and get a nice pic of him in it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 9, 2026
S
Verified Purchase
Shooter
Draper, US
★★★★★ 4
Nice economy casual sweater,
Size: Large, Color: Off-white
The sweater is fine for the price, with correct fit. Arrived fast. Nice neutral cream/oatmeal color. It has a fairly loose open weave and is predominantly cotton, so it’s quite breathable and well suited for layering in cool but not truly cold weather. The knit is a little coarse, not really scratchy but not very soft. It’s a good value for what they charge. And fine for casual wear. But I ultimately decided to return it and spend a lot more to get a merino wool sweater because they are dressier, much warmer for weight, MUCH softer, and less bulky under a jacket. I like to wear mock turtlenecks under a sport coat in the fall and this sweater was a little too thick for that.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 8, 2023
R
Verified Purchase
Ralph A.
Fort Morgan, US
★★★★★ 5
Soft and comfortable but runs a bit large
Size: Medium, Color: Off-white
I got this turtleneck in the off white color, and it looks very clean and easy to style. The color is true to what is shown and works well with casual or more dressed up outfits. The fabric feels soft and has a nice amount of stretch, which makes it comfortable to wear for longer periods without feeling stiff. The sweater feels lightweight but still warm enough for cooler days. It is not heavy or bulky, so it layers easily under jackets or coats. It also seems fairly wrinkle resistant. After wearing it and folding it, it still looked neat without needing much adjustment. In terms of fit, it does run a little big. I usually wear a medium, and while this one is still wearable, it feels slightly looser than expected, especially through the body. It is not a big deal, but I would probably order a smaller size next time for a more fitted look. The turtleneck itself sits comfortably around the neck and does not feel tight or irritating. Overall, it feels like a comfortable and easy to wear piece with good stretch, a nice lightweight feel, and a clean look. Just something to keep in mind on sizing if you prefer a closer fit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 18, 2025
B
Verified Purchase
Brittany
Louisville, US
★★★★★ 3
Don’t recommend
Size: Medium, Color: Black
Got this as a last minute shirt for an event and it was roughly $12 on sale. The quality was ok, first wear was fine but it doesn’t hold up after washing and air drying. I don’t recommend unless only wearing once, there was a lot of shedding and pilling after the first wear. I’m rough 5 ft tall and about 140 lbs. and I got a M and it sat around my hips so unless your on the tall side this wouldn’t fit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 7, 2026

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