Integrated CircuitChina Wired Mouse IC Optical Sensor V101s Ka2b USB Interface DIP12L Dpi: 1000 (default) /1600 Replace A2636, Find details about China V101s, A2636 from Wired Mouse IC Optical Sensor V101s Ka2b USB Interface DIP12L Dpi: 1000 (default) /1600 Replace A2636