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Straight Power 11, 80 PLUS Platinum 1200W, Fully Modular, ATX Power Supply

  • SKU: 13352836
  • Manufacturer: be quiet!
  • MPN: BN645
  • Availability: CONTACT US
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Straight Power 11, 80 PLUS Platinum 1200W, Fully Modular, ATX Power Supply

be quiet! Straight Power 11 Platinum 1200W (BN645). 80 PLUS PLATINUM CERTIFIED. One of the highest efficiency certificates available. Straight Power 11 Platinum 1200W is certified with 80 PLUS Platinum efficiency, reaching up to 93.9%. 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.

  • 80 PLUS® Platinum efficiency (up to 93.8%)
  • 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
  • Powerful multi-GPU support with two PCI-Express connectors
  • Japanese 105°C-rated capacitors ensure stability and reliability
  • ErP and Energy Star 7.0 ready
  • 5-year manufacturer’s warranty
General data
Model Straight Power 11 Platinum | 1200W
Continuous power (W) 1200
Peak power (W) 1270
Form factor ATX 12V Version 2.51
Form factor EPS 12V Version 2.92
Modular Cable management
Topology LLC + SR + DC/DC
Wire-free design (DC-side)
Voltage (Vac) 100 - 240
Frequency (Hz) 50 - 60
Input current (A) 15/7.5
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) 24
+12V2 (A) 24
+12V3 (A) 38
+12V4 (A) 38
+12V5 (A) -
+12V6 (A) -
-12V (A) 0.5
+5Vsb (A) 3
Max. combined power 12V (W) 1,200
Max. combined power 3.3V + 5V (W) 150
Hold-up time (ms @ 100%) 19.6
Power good signal 100-150ms
Fan / Cooling technology
Fan type be quiet! Silent Wings 3
Motor technology 6-pole fan motor
Bearing technology FDB
Fan size (mm) 135
Max. fan speed (rpm), temperature-dependent 2,600
Temperature control for case fans -
dB(A) at 20% load 9.4
dB(A) at 50% load 11.5
dB(A) at 100% load 32.9
OCP (over current protection)
OVP (over Voltage protection)
UVP (under Voltage protection)
SCP (short circuit protection)
OTP (over temperature protection)
OPP (over power protection)
Safety certification
Nemko (N) -
Semko (S) -
Fimko (FI) -
Demko (D) -
cRUus -
RCM (Australia)
CU (Russia)
Eco / Efficiency
80 PLUS certification Platinum
Efficiency (%) at 230V, 20% load 92,4
Efficiency (%) at 230V, 50% load 93,9
Efficiency (%) at 230V, 100% load 92,5
Environmental directives
Energy Star 7.0
Cable management / Connectors
Multi-GPU ready
Modular Cable management
Fully modular
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) 6
PATA 4-pin 4
SATA 15-pin (HDD, Drives) 11
FDD (Floppy) 1
External fan connectors -
Dimensions without cable (L x W x D), (mm) 170 x 150 x 86
Weight (kg) 1.93
Color Black
Thumb screws -
Cable ties
Velcro cable ties -
Box/Bag for PSU/Cables -
User manual languages EN, DE, FR, PL, ES, RU
OCK slot bracket with switch / OCK jumper -
SFX-to-ATX adapter bracket -
Warranty (Years) 5
Express replacement service in first year DE, FR
International hotline / free of charge ✓ / DE, FR
Logistics data, RRP
Article number BN645
EAN code 4260052187531
Dimensions, package (L x W x H), (mm) 328 x 248 x 102
Gross weight, package (kg) 3.43
Pieces per packaging unit 6
Dimensions, shipping box (L x W x H), (mm) 651 x 282 x 346
Gross weight, shipping box (kg) 24.47