Features: Support the transmission of 4pin speed controls on the motherboards, and achieve synchronous adjustment of multiple fan speeds through the control chip. The temperature sensings sensitivity is ± 1 ℃. Adopting a standard 4Pin design, a single port can expand up to 5 fan (including CPU/case fan) DC12V voltages and 0.1-2.5A current output, compatibles mainstream motherboards and water cooling systems. Low attenuation signal transmission: Equipped with tinned coppered cored wire and double-layer shielding structure, signal transmission loss rate is less than 3%, ensuring the stability of adjustment pulse signal during distances (up to 41cm) wiring and avoiding speed delay caused by multiple device interferences. Integrated overloads protections module, single load capacity of 4.8W, supports short circuits recovery function, combined with flame-retardant PVC outer covering material, meets UL94-V0 fire rating standard Specifications: Product name: 4pin Adjustment Speed Fan Controller size: about 80x26x13mm/3.14x1.02x0.51in Product weight: 0.023kg Wire length: 400mm Interfaces: 5 interfaces (4pin) Voltages: DC12V Product color: black, white Package Includes: 1PC Fan Temperature Control Adapter note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.