The S101UL is a high-precision, ultra-low-power optical navigation chip. It offers high accuracy while maintaining extremely low power consumption, with an IC LED current of only 1.25mA. It is mainly used in wireless business office mice that require low power consumption and is commonly found in 2.4G or dual-mode ultra-energy-saving mice. It has a maximum resolution of 5000 CPI, a maximum speed of 30 ips, a maximum acceleration of 10 g, and a maximum frame rate of 2000 fps.