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Lian Li RB RB 550B (G9P.RB0550B.B000.EU)

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Lian Li RB 550W Power Supply 80 Plus Bronze ATX 31 PCIe 51 Ready 135mm Low-Noise Fan Built-in Cable Management 5-Year Warran

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Lian Li RB RB 550B
Main
Power550 W
Form factorATX
Specs
PFCactive
Efficiency85 %
Cooling systemactive
Fan size135 mm
Fan bearinghydrodynamic
Certification80+ Bronze
ATX12V version3.1
Power connectors
MB/CPU power supply24+8+8(4+4) pin
SATA3
MOLEX1
PCIe 8pin (6+2)2
Cable systemnon-modular
Braided wires
Cable length
MB600 mm
CPU650 mm
SATA400 mm / 550/700 /
MOLEX850 mm
PCIe600 mm
Max. power
+3.3V20 А
+5V20 А
+12V145.8 А
-12V0.3 А
+5Vsb3 А
+12V549 W
+3.3V +5V100 W
-12V3.6 W
+5Vsb15 W
General
Over voltage protection (OVP)
Over power protection (OPP)
Short circuit protection (SCP)
ProtectionOCP, UVP, OTP
Noise level39 dB
Manufacturer's warranty5 years
Dimensions (HxWxD)86x150x150 mm
Official Websitelian-li.com
Added to E-CatalogJuly 2026
P/N
G9P.RB0550B.B000.EU

The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
How to choose a power supply for a PCBasics of choosing a reliable and balanced power supply for your home, office and gaming computer

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