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Lian Li RB 550W 80+ Bronze ATX 3.1

Lian Li RB 550W 80+ Bronze ATX 3.1

MPN RB0550B UPC 840353050075

Wattage
550 W
Efficiency
80 PLUS Bronze
Modular
Non-modular
Form factor
ATX
Standard
ATX 3.1
12V-2x6
Yes

Best price now

$49.99

at

The store's own price · checked

Lowest price in 30 days

Lowest in 30 days: $49.99 · typical: $49.99

Near you

In stock at 28 stores nationwide.

Every real price drop the minute we find it: psu.live on Telegram · Discord

Where to buy

★ 5.0 out of 5 from 3 customer ratings at 2 stores. How we count

In stock ★ 5.0 (1) · LIAN LI (marketplace seller) · free ship · $49.99
In stock Tech Wave (marketplace seller) · free ship · $49.99
Out of stock online ★ 5.0 (2) · In store at 23 of 30 · $49.99
In stock Amazon.com · free ship · $54.04
Out of stock ★ 5.0 (1) · FlashDeal (marketplace seller) · +$15 ship · $64.98
Not confirmed Adorama · $64.99
Out of stock BTE Outlet (marketplace seller) · free ship · $78.98
Not confirmed -

In-store stock · 28 stores

Set your ZIP to sort by distance
StorePriceStockOpen boxProduct page
MCPhoenix AZ · Closed $50 16 -
CCEast Bay CA $50 13 -
CCSan Francisco CA $50 3 -
CCSan Mateo CA $50 4 -
CCSanta Clara CA $50 12 -
CCSunnyvale CA $50 7 -
MCTustin CA · Closed $50 3 -
MCDenver CO · Closed $50 2 -
MCMiami FL · Closed $50 9 -
MCDuluth GA · Closed $50 2 -
MCMarietta GA · Closed $50 5 -
MCChicago IL · Closed $50 2 -
MCWestmont IL · Closed $50 2 -
MCIndianapolis IN · Closed $50 3 -
MCOverland Park KS · Closed $50 2 -
MCCambridge MA · Closed $50 3 -
MCParkville MD · Closed $50 1 -
MCRockville MD · Closed $50 1 -
MCMadison Heights MI · Closed $50 2 -
MCNorth Jersey NJ · Closed $50 2 -
MCBrooklyn NY · Closed $50 2 -
MCFlushing NY · Closed $50 3 -
MCWestbury NY · Closed $50 3 -
MCYonkers NY · Closed $50 1 -
MCMayfield Heights OH · Closed $50 4 -
MCSt. Davids PA · Closed $50 3 -
MCDallas TX · Closed $50 5 -
MCHouston TX · Closed $50 6 -
MCSanta Clara CA · Closed $50 Sold out -
MCSt. Louis Park MN · Closed $50 Sold out -
Price history

Lowest in-stock price by retailer

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Specifications

Power

Wattage
550 W
Efficiency
80 PLUS Bronze
Standard
ATX 3.1
Native 12V-2x6 / 12VHPWR
Yes

Build

Form factor
ATX
Modular
Non-modular
Fan
135 mm
Depth
150 mm
Warranty
5 years

Wrong price, stock or spec? Tell us

Full spec sheet from Newegg
Details/PFC
Active PFC, PF > 0.95 under full load @ 115Vac, 60Hz
Details/Fans
1 x 135 mm HYB Fan
Details/MTBF
>100,000 Hours
Details/Type
ATX (ATX 3.1 Compatible)
Details/Color
Black
General/Brand
LIAN LI
General/Series
RB series
Details/Modular
Non Modular
Details/Approvals
CE/CB/cTUVus/TÜV/FCC/BSMI/CCC/KCC/SAA+RCM
Details/Connectors
Main Power (20+4Pin)600mm * 1pc ATX 12V (4+4Pin) EPS 4+4pin 650mm * 2pc PCIe 6+2 600+150mm * 1pc SATA (5Pin) / Peripheral (4Pin) SATA 400+150+150mm + PATA 150mm *1pc
Details/Protection
OPP/OVP/SCP/OCP/UVP/OTP
Details/Input Voltage
100 - 240 V
Details/Maximum Power
550 W
Details/Main Connector
20+4Pin
Details/Energy-Efficient
80 PLUS BRONZE Certified
Dimension & Weight/Weight
5 lbs
Details/Input Frequency Range
8A, 50-60Hz
Dimension & Weight/Dimensions
150mm(W)x86mm(H)x150mm(D)
Additional Information/First Listed on Newegg
January 06, 2026
Full spec sheet from Best Buy
UPC
840353050075
Brand
Lian Li
Color
Black
Modular
Non-modular
Wattage
550 watts
Form Factor
ATX
Model Number
RB0550B
Product Name
RB550 80 Plus Bronze Non Modular - Low-Noise ATX 550 Watt Power Supply - 135mm Larger Fan - Active PFC Design(RB0550B)
ATX Connector
1
Product Width
86 millimeters
PCIe Connector
1
Product Height
150 millimeters
Product Length
150 millimeters
Product Weight
81.12 ounces
SATA Connector
1
EPS12V Connector
1
Warranty - Parts
5 years
Energy Efficiency
80 PLUS Bronze
PCI Express Version
PCI Express 5.1
Power Cord Included
true
Full spec sheet from Micro Center
PFC
Active
SKU
922542
UPC
840353050075
MTBF
100,000 Hours
Color
Black
Labor
5 Year Limited
Parts
5 Year Limited
Width
5.91 in. (150.00 mm)
Height
3.39 in. (86.00 mm)
Rating
80 PLUS Bronze Certified
Modular
Non-Modular
Wattage
550 Watts
Mfr Part#
RB0550B.B000.US
+12V Rails
1
Protection
OPP/OVP/SCP/OCP/UVP/OTP
Form Factor
ATX
ATX Connector
20+4-pin
Input Voltage
100V - 240V
SATA Connector
3
Molex Connector
1
ATX 12V Connector
2 x 4+4-pin
Graphics Connector
2 x 6+2-pin
Power Supply Depth
5.91 in. (150.00 mm)

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