BUYMINERS.CA specializes in cryptocurrency mining products and works closely with manufacturers to deliver the most reliable and functional components for the job. Each product goes through rigorous quality control checks and inspections before packaging. Each fan splitter 4 pin fan extension cable is constructed with sturdy and flexible nylon and braided for longer performance. The motherboard fan splitter has a 4-pin female, 4-pin male, and 2 x 3-pin male port. It can be used as a 4 pin to 3 pin splitter if you have a 3 pin pc case fan. The 10.5 inch pc fan extension cable provides a longer reach as required when installing pwm fans in larger enclosures. The case fan splitter cable is a quick and inexpensive solution for adding ventilation and regulating fan speed for better performance.