Factory Price MEGA2560 R3 Development Board Kits ATMEGA16U2 CH340G mega 2560

Q1: Who is Yonglisheng? A: We are a professional supplier of electronic components from China. We can provide original and new integrated circuits,diodes, Transistors, resistors, capacitors, crystals, etc. Also provide BOM full service, PCB service.Q2:What is the minimum order quantity for your products? A.Minimum order quantity starts from ONE piece . Q3:How often do we send goods? A:We will pack and send your goods within 2-3 working days,after we confirmed your payment. For quickly packing and sending,pleaselet us know if you finished the payment. Q4:How is our logistics? A:We usually shipp by DHL,UPS,TNT or EMS.It usually take 3-7 days to arrive. Air cargo and sea shipping are also optional. Q5: How if our after-sales service?A:1.Our products are all original and new from manfacturer.It must be work if the model number is correct. 2.We orrfer 30-90days warranty to our products. 3.During the guarantee period,if the items your purchased from our store are out of perfected quality,pls notity us within 3 daysafter deliverry,we will return the newproducts when we got your message