The Lian Li RB Series 550W Black is a non-modular ATX 3.1 power supply designed for everyday gaming, productivity and general desktop systems. Model RB0550B carries 80 PLUS Bronze certification with efficiency up to 85% and provides 549.6W on its combined +12V output. Despite its mainstream 550W capacity, it includes native 12V-2x6 connectivity for compatible modern graphics cards. The PSU also features Active PFC, a 135mm HYB temperature-controlled fan, built-in cable-routing channels with Velcro straps, three-sided cable exits and six electrical protection mechanisms in a compact 150mm-deep black chassis.
Shipping and Returns
We offer fast and reliable shipping for all our items. Orders are processed within 1-2 business days and shipped via standard delivery, which typically takes 3-5 business days.
For any questions regarding your order, please contact our customer service team for assistance.
Refund & Replacement Policy
Returns are only accepted in rare cases with double shipping charges, and only if the product is sealed.
Opened or preference-based returns are not allowed.
Please report any damaged, defective, dead-on-arrival, or incorrect product within 72 hours with an uncut unboxing video for replacement.
Refunds are processed after verification, and if a replacement is unavailable, a full refund will be issued.
Refunds are processed after verification, and if a replacement is unavailable, a full refund will be issued.