Lian Li RB Series 80 PLUS Bronze...

750-watt power supply with 80 PLUS Bronze (85% efficiency), semi-modular design, integrated cable management, quiet 135mm HDB fan, PCIe 5.1 and ATX 3.1 compatibility

The Lian Li RB Series 750W is an efficient power supply designed for beginners and gamers who value performance, quality, and clean cable management. It combines a semi-modular cable design with premium components and smart organisation. With up to 85% efficiency at half load , it holds the 80 PLUS Bronze certification and delivers stable 750-watt output.

750 W of Reliable Output Power
80 PLUS Bronze: 85% efficiency at 50% load
Semi-Modular: Core cables fixed, optional cables modular
Tidy Cable Management: Integrated Velcro straps on three sides
Modern Standards: ATX 3.1 and PCIe 5.1
Quiet Cooling: 135 mm HDB fan

Reliable Power Delivery

High-quality electrolytic capacitors ensure consistent and stable performance – even at temperatures up to 40 °C. As a result, the Lian Li RB Series Power Supply achieves high efficiency and carries the 80 PLUS Bronze certification.

Modern Semi-Modular Power Supply

The 24-pin ATX and CPU-EPS cables are permanently attached. In addition, the PSU provides PCIe 6+2 and 12V-2x6 connectors as well as an adapter for PCIe . The 12V-2x6 connector is colour-coded to prevent incorrect installation – if you can see blue, it’s not fully plugged in. SATA and peripheral cables can be connected as needed via modular ports , keeping your case neat and organised.

Clean Cable Management

The PSU includes Velcro straps on three sides to help you bundle excess cables easily. This reduces clutter and improves airflow within your PC case.

ATX 3.1 and PCIe 5.1 – Future-Proof Standards

The Lian Li RB Series 750W meets both the ATX 3.1 and PCIe 5.1 standards, providing modern specifications for efficiency, safety, and stability – ideal for current and next-generation hardware.

Quiet & Efficient Cooling

135 mm HDB fan instead of 120 mm
Better cooling at lower fan speeds
40.1 dB(A) at 1,600 RPM
Stable temperatures even under heavy load

The larger fan improves airflow while operating more quietly. Even under high load, the power supply remains pleasantly quiet and reliably cool.

Specification

Colour
Primary Colour	Black
Dimensions
Length / Depth	150 mm
Width	86 mm
Height	150 mm
Fan Specifications
Fan Size	135 mm
Power Supply
PSU Format	ATX
ATX Standard	ATX 3.1
12V Distribution	multi rail
Modular Power Supply	Yes
Modular Type	semi modular
Power Specifications
Total Power Output	750 W
Power Output +12V rails	649.2 W
Cable Specifications
Max. CPU Power Cable Length	650 mm
Max. 24-Pin Motherboard Power Cable Length	600 mm
Max. 12V-2x6 Cable Length	100 mm
Max. PCIe Power Cable Length	100 mm
Max. SATA Power Cable Length	850 mm
Cooling
Semi Passive Power Supply	Yes
Internal Ports
CPU Power Connectors 12V ATX/EPS	2
8 Pin PCIe Power Connectors	2
6+2 Pin PCIe Power Connectors	2
SATA Power Connectors	5
Efficiency Class
80PLUS Efficiency	80 PLUS Bronze
Lighting
Lighting / RGB	No

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