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- USA
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20
For Your Every Summer RSVP, with Code: SUMMER15
Description
be quiet! System Power 11 550W is ATX 3.1 compliant and PCIe 5.1 compatible, 5-year manufacturer's warrantySYSTEM POWER 11 550W 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 550WProven 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 11 550 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)
4
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% load64.4 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 86.6 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)
1800
dB(A) at 10% load
10.4
dB(A) at 20% load
10.8
dB(A) at 50% load
11.0
dB(A) at 100% load
24.2
Output
Multi-rail operation (12V rails)
No
12V single rail operation
Yes
Overclocking key
No
+3.3V (A)
20
+5V (A)
20
+12V1 (A)
45.83
+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)
550
Max. combined power 12V-2x6 (W)
300
Max. combined power 3.3V + 5V (W)
120
Hold-up time at 100% load (ms)
16.86
Hold-up time at 80% load (ms)
20.92
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
7
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
TUV
Yes
UKCA
Yes
IRAM
No
Environmental directives
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)
1.92
Color
Black
Logistics data and RRP
Dimensions, package (L x W x H), (mm)
268 x 195 x 97
Gross weight, package (kg)
2.3
Pieces per packaging unit
6
Dimensions, shipping box (L x W x H), (mm)
556 x 311 x 218
Gross weight, shipping box (kg)
14.9
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:
- 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
4.8 ★★★★★
Based on 77 reviews
Sort
Product Reviews
★★★★★ 5
I love it for my workspace! Hot tea all day
Color: Wood Grain
I love this item. The size is perfect, as I prefer something less bulky for my work desktop. It isn't as fancy as others that has the digital display screen, which is fine by me, because I don't necessarily need that. The knob and different colors that indicate the temperature range works fine. The temperature on this thing works fantastically well for me. Using it on the lowest setting keeps my drink nice and hot in a cold office. I use a heatproof glass teapot with this and its a good fit. It keeps my tea hot throughout the day, so I am able to pour smaller amounts of drink and take my time sipping it throughout the day without worrying that it will get cold. At point I almost forgot that it has an automatic shut-off safety feature when I noticed it was off. So that is a good feature to have. I highly recommend this.
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Reviewed in the United States on January 15, 2026
★★★★★ 4
Requires a very specific mug to be useful.
Color: Black
The hotplate itself gets hot enough on its highest setting where it would burn your finger if you left it one there for more then a couple seconds. However when it come to what mug you can use to transfer that heat to your drink, this WILL NOT work with just any old ceramic, metal or glass mugs. You absolutely need to have a perfectly flat bottom on it. If the center of the bottom of the mug does not make direct contact with the very center of the warmer, it will not transfer heat. So straight way plan of spending another $15 to $20. Amazon has some available with good reviews all be it not a very big selection. I'm giving this 4 stars because the description needs to be very clear about this and its not.
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Reviewed in the United States on May 8, 2026
★★★★★ 5
Great mug warmer with temp control
Color: Black
I replaced a cheap mug warmer with a couple of these for the house, and for almost the same price this is a lot more functional. I really like the temperature control and silicone surface protector. In combination with the carafe below, this has changed my life - no more microwaving coffee all morning.
https://www.amazon.com/GiNT-Stainless-Thermal-Thermos-Retention/dp/B07MW5N7MS
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Reviewed in the United States on May 10, 2026
★★★★★ 5
Super Satisfied Customer Here!
Color: Gold, Color: Gold
I purchased the gold/black mug warmer. I always spend a good about of money for great coffee products and I take my time to perfect my coffee for my mornings at work. However, I get pulled into urgent meetings and just something urgent and I always leave more than half of my coffee behind. When I come back it’s cold and that’s very disappointing considering the money and time I spent to make it bc I then have to toss it. I don’t believe in microwaves and I refuse to use one. When I found this, I was super excited! It looks perfect at my desk and it works perfect! I would have liked it to be more on the brass gold like my pen holder, but it’s just as pretty! As you can see, my mug had a layer on the bottom and that made me think it may not work well, but it did the job. My coffee was super warm and it got even hotter as I left it there tearing it. I turned it one before making my coffee, so I’m not sure exactly how long it took to warm up but for me, by the time I got back, it was the peg temperature. I highly recommend this to anyone who has the same struggles. No more cold coffees! Thank you!!!
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Reviewed in the United States on January 21, 2026
★★★★★ 5
Neat gadget
Color: Gold
Neat little gadget. Works great, easy to use and has a light indicator for temperature range. Keeps a cup of liquid hot right to the bottom.
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Reviewed in the United States on May 29, 2026
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