Introduction
be quiet! Straight Power 11 Platinum 550W raises the bar for systems that demand virtually inaudible operation and outstanding efficiency.
Power
Total power
550 W
Peak power
600 W
AC input voltage
100 - 240 V
AC input frequency
50/60 Hz
Input current
8/4 A
Power factor
0.99
Power Factor Correction (PFC) type
Active
Combined power (+3.3V)
110 W
Combined power (+12V)
549.6 W
Combined power (+5V)
110 W
Combined power (-12V)
3.6 W
Combined power (+5Vsb)
15 W
Max output current (+3.3V)
22 A
Max output current (+12V)
45.8 A
Max output current (+12V1)
18 A
Max output current (+12V2)
18 A
Max output current (+12V3)
20 A
Max output current (+12V4)
20 A
Max output current (+5V)
22 A
Max output current (-12V)
0.3 A
Max output current (+5Vsb)
3 A
Hold time
17.7 ms
Efficiency
93.8%
Power protection features
Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage
Ports & interfaces
Motherboard power connector
20+4 pin ATX
Motherboard power cable length
60 cm
Number of SATA power connectors
9
Number of PATA power connectors
3
EPS power connector (4+4 pin)
Y
PCI Express power connectors (6+2 pin)
2
PCI Express power cable length
60 cm
Floppy drive power connector
1
Cabling type
Modular
Performance
80 PLUS certification
80 PLUS Platinum
Purpose
PC
Power supply unit (PSU) form factor
ATX
ATX version
2.51
Noise level
14.9 dB
Bearing technology
FDB
Mean time between failures (MTBF)
100000 h
Certification
CE, CB, TÜV, FCC, cTUVus, RCM (Australia), BSMI, CU (Russia), CCC
Design
Product colour
Black
Cooling type
Active
Fan diameter
13.5 cm
Number of fans
1 fan(s)
Fan speed
0 - 1200 RPM
Fan location
Top
Weight & dimensions
Width
150 mm
Depth
160 mm
Height
86 mm
Weight
1.66 kg
Packaging data
Package width
248 mm
Package depth
328 mm
Package height
102 mm
Package weight
2.84 kg
Package type
Box
Technical details
Sustainability certificates
RoHS, ENERGY STAR
Logistics data
Master (outer) case width
282 mm
Master (outer) case length
651 mm
Master (outer) case height
346 mm
Master (outer) case gross weight
20.6 kg
Other features
EPS cable length
70 cm
Screws included
Y
Cable ties included
Y
Noise level (silent mode, <30%)
9 dB
Noise level (quiet mode, 50%)
9.6 dB
Noise level (full-load mode, 100%)
14.9 dB
Manual
Y
Parallel processing technology support
Dual Graphics
