Features: brand new and high quality Double-ring high brightness fan, multiple modes, built-in colorful RGB light bar, colorful color changing fan! Support speed adjustment, brightness adjustment, support to adjust the running light speed, the fan can be stopped. The fan is a small 6pin interface, and the controller is powered by a large 4pin interface. You can just plug in the desktop power supply and use the big 4pin to get power. The hydraulic bearing has a large oil storage space and forms an original loop-back oil supply circuit. It is driven by a strong magnetic motor to make the fan longer, quieter and more durable. There are 8 foot pads for shock absorption, shock and noise reduction. Specifications: Material: PC Size: approx. 12x12x2.5cm/4.72x4.72x0.98in Operating voltage: 12v + 5v Rated power: 4.2w Speed: 0-1400rpm Air volume: 37.8cfm 10% Fan noise: 25dba 10% Product Life: 30000h Fan interface: 6pin small Bearing Type: Hydraulic Bearing Color: blue, color, green, pink, red, white USB interface: small 3Pin +big 4Pin or small 6Pin interface Note: 1. Due to different monitor and light effect, the actual color may be slightly different from the picture color. 2. Allow 1-3cm difference due to manual measurement. 3. The standard controller does not support music sensor and mainboard shenguang synchronization! 4. the music controller does not support the shenguang 12v 4-pin sync motherboard. Package includes: 1PC x RGB for Case Fan