be quiet! System Power 11 650W is ATX 3.1 compliant and PCIe 5.1 compatible, 5-year manufacturer's warranty
be quiet! System Power 11 650W is ATX 3.1 compliant and PCIe 5.1 compatible, 5-year manufacturer's warranty is backordered and will ship as soon as it is back in stock.
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be quiet! System Power 11 650W is ATX 3.1 compliant and PCIe 5.1 compatible, 5-year manufacturer's warranty
£53.19
System Power 11 650W ATX 3.1 Power Supply
Proven reliability, quiet operation, and strong performance for value-oriented PC builders.
System Power 11 650W is an ATX 3.1 power supply unit designed for users who demand dependable power delivery and low noise without compromising on value.
Key Features
- ATX 3.1 PSU with support for:
- PCIe 5.1 GPUs
- GPUs with 6+2 pin connectors
- Quiet cooling with a temperature-controlled 120 mm quality fan
- Strong 12V single rail for rock-solid system stability
- DC-to-DC technology for tight voltage regulation
- Supports:
- Up to one PCIe 5.1 12V-2x6 600W connector
- Up to three PCIe 6+2 connectors for high-end GPUs
- Dependable operation to support powerful GPUs
- Standby power draw of less than 0.15 W
- 80 PLUS Bronze efficiency (up to 90.0 %)
- 5-year manufacturer’s warranty
- Product conception, design, and quality control in Germany
Technical Specifications
General
| Parameter | Value |
|---|---|
| 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 |
| Input 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 lifetime (h / 25°C) | >100,000 |
| Operating temperature up to (°C) | 40 |
Efficiency
| Parameter | Value |
|---|---|
| 80 PLUS certification | Bronze |
| Efficiency (%) at 230V, 2% load | 63.9 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
| Parameter | Value |
|---|---|
| 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 |
| Noise level dB(A) at 10% load | 10.9 |
| Noise level dB(A) at 20% load | 10.9 |
| Noise level dB(A) at 50% load | 11.8 |
| Noise level dB(A) at 100% load | 30.9 |
Output
| Parameter | Value |
|---|---|
| Multi-rail operation (12V) | No |
| 12V single rail operation | Yes |
| Overclocking key | No |
| Rail | Current (A) |
|---|---|
| +3.3V | 20 |
| +5V | 20 |
| +12V1 | 54.17 |
| +12V2 | No |
| +12V3 | No |
| +12V4 | No |
| +12V5 | No |
| +12V6 | No |
| -12V | 0.3 |
| +5Vsb | 3 |
| Parameter | Value |
|---|---|
| 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
| Parameter | Value |
|---|---|
| Modular cables | No |
| Sleeved cables | P24 |
| Flat cables | P4+4, P4, PCIe, drives |
| Maximum cable length (cm) | 55 |
| Cable length to motherboard (cm) | 79 |
| Number of cables | 8 |
Connectors
| Connector type | Quantity |
|---|---|
| ATX-Motherboard (20+4-pin) | 1 |
| P4+4 (CPU) | 1 |
| P8 (CPU) | No |
| P4 (CPU) | 1 |
| 12V-2x6 cables | 1 |
| PCIe 6+2-pin (GPU) | 2 |
| PCIe 6-pin (GPU) | No |
| SATA | 5 |
| PATA | 1 |
| FDD (Floppy) | No |
Protection Features
| Protection type | Available |
|---|---|
| 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 |
Certifications
Safety
| Certification | Status |
|---|---|
| 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
| Directive | Status |
|---|---|
| Energy Star | 8.0 |
| ErP | Yes |
| WEEE | Yes |
| RoHS | Yes |
| Triman | No |
Scope of Delivery
| Item | Included |
|---|---|
| Thumb screws | No |
| Screws | Yes |
| Cable ties | Yes |
| Velcro cable ties | No |
| User manual languages | No |
| OCK slot bracket/jumper | No |
| SFX-to-ATX adapter | No |
Casing
| Parameter | Value |
|---|---|
| Dimensions without cable (L x W x H, mm) | 86 x 150 x 140 |
| Weight (kg) | 1.97 |
| Color | Black |
Logistics Data
| Parameter | Value |
|---|---|
| Package dimensions (L x W x H, mm) | 268 x 195 x 97 |
| Gross weight, package (kg) | 2.4 |
| Pieces per packaging unit | 6 |
| Shipping box dimensions (L x W x H, mm) | 556 x 311 x 218 |
| Gross weight, shipping box (kg) | 15.2 |
Service
| Parameter | Value |
|---|---|
| Warranty (years) | 5 |
Let customers speak for us
Good products, delivery, price.
Great service. Good product.
Arrived very quickly and worked a treat.
This product is most likely. Compact and easy, daily use. 😉
Excellent service
item as described and delivered promptly
Received with thanks
Very good repair set at an excellent price! Arrived on time and came well-packed. Very pleased with it. Recommended seller.
Very pleased
Nice doing business, product was as described in description. Works as Indented, thanks.
First class service a++++++++++
Perfect thanks. Speedy delivery. Md
Should be good fun programming this device
For use at my soldering station to keep fumes out of my eyes
All good, thanks. Item as described. Quick delivery. A+++++
