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
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 |
✓ |
Topology |
Full bridge + LLC + SR + DC/DC |
Wire-free design (DC-side) |
✓ |
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 |
✓ |
Power consumption in standby (W) |
0.16 |
Average life time (h / 25°C) |
100,000 |
Operating temperature up to (°C) |
40 |
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 type |
Silent Wings 3 |
+SilentWings |
✓ |
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 |
OCP (over current protection) |
✓ |
OVP (over voltage protection) |
✓ |
UVP (under voltage protection) |
✓ |
SCP (short circuit protection) |
✓ |
OTP (over temperature protection) |
✓ |
OPP (over power protection) |
✓ |
SIP (Surge & Inrush Protection) |
✓ |
CE |
✓ |
CB |
✓ |
TÜV |
✓ |
FCC |
✓ |
cRUus |
– |
cTUVus |
✓ |
RCM (Australia) |
✓ |
BSMI |
✓ |
CU (Russia) |
✓ |
CCC |
✓ |
80 PLUS certification |
Platinum |
Efficiency (%) at 230V, 20% load |
92 |
Efficiency (%) at 230V, 50% load |
94 |
Efficiency (%) at 230V, 100% load |
92.7 |
ENERGY STAR |
7.0 |
ErP |
✓ |
WEEE |
✓ |
RoHS |
✓ |
Nvidia<sup>®</sup> 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 le
Bequiet Stright Power 11 Platinium 850w Modular Power Supply BN308
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