2.54mm21mm by CHINA Design and production,in Positive energy website building service Spot sales,And can pass Positive energy website building service Purchasing。2.54mm21mm Price reference $ 0.105878。2.54mm21mm - 。You can download Chinese information、Pin map、DatasheetData sheet function specification，In the information 2.54mm21mm Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial
