Chimicron is an independent distributor of electronic components. We have reliable sources of electronic components, only sell new & original products and offer 1 year warranty for our products. Buy the P87C51RD+4A Rochester Electronics at chimicron.com. We have 128500 pieces of P87C51RD+4A in stock available now. Submit an inquiry for P87C51RD+4A or send an email to [email protected], we will contact you in 24 hours.