This is a fan controller specifically designed for water-cooled systems with water temperature monitoring. It can control fan speed based on water temperature. Fan speeds can be set from the unit itself (similar to BIOS). The set speeds are loaded at startup, so you don't need to configure them every time. A warning buzzer can be activated when a certain temperature is exceeded. It powers on in conjunction with the PC's USB, so it starts and operates automatically. Specifications: 2.42-inch display PWM 25kHz Fan speed pulse acquisition FAN hub connections: 6 FANs, 5 ARGBs x 2 Hub SATA power supply Temperature alarm Short circuit protection circuit Electrostatic protection circuit Unit USB-C power supply Barrow temperature sensor fitting Works with SteamOS, Linux, and Windows. No drivers or software required; it operates as completely independent hardware. It works as long as power is supplied. Temperature gauge fitting -> unit -> fan hub x 2 -> controls 10 or more fans. You can set the power from 0% to 100% based on temperature. Temperature control range: 20°C to 60°C (on the screen) The unit allows you to control two groups of fans. By dividing into two groups, you can, for example, separate intake fans into one group and exhaust fans into two groups. You can also control the air pressure inside the PC (depending on the case) by increasing exhaust for negative pressure or increasing intake for positive pressure. Note: It does not support 3-pin fans; only 4-pin fans can be controlled. Choose a branching fitting for the temperature sensor that doesn't block the piping. You can use it with spare ports on the GPU or radiator as long as you don't block the flow path; this method doesn't require additional costs and is easy. Contents: Fan controller unit x 1 Temperature sensor fitting x 1 Fan hub (fan x 6, ARGB x 5) x 2 USB cable for PC installation (motherboard USB connector) -> TYPE C Simple operation manual What you need to prepare (not included): Branching fittings and connection fittings. Not needed if using spare ports on the GPU or radiator. Returns are possible if there are compatibility issues or defects. Thank you.