Building a killer PC with perfect aesthetics? This Lian Li UNI FAN SL-INF 120 is a reverse-blade version, meaning it's designed to show the pretty RGB infinity mirror side on the intake – perfect for front or bottom intake fans in a typical build. It's a 120mm fan with a 4-pin PWM connection for precise speed control. Brand new in box, white color, with a 2-year warranty. Lian Li fans are known for great looks, daisy-chaining, and solid performance. If you're tired of seeing the boring backside of your intake fans, this reverse model is the solution. It’s all about that clean, symmetrical RGB glow. Just plug it in, sync it with your motherboard, and watch your rig shine.