Check the listing for details. MOS 8520R2 8520A-1 8520PD 8520A-1PD Complex Interface Adapter C64 IC x 1pc. Condition: Used. Listed at 15.99 USD. Welcome to "ericwoosrarechips" !!! The only reason that we created this store is: SELLING "HARD TO FIND" & "RARE" CHIPS! We have many years of industry experience,plenty reliable source, and perfect after-sales service,If you can't find the chips you wanted from our shop, please contact us! We are using Registered Mail only(SpeedPAK,ePacket,China/HK Post,DHL eCommerce)with tracking for shipping,and might using faster shipping method(DHL,UPS,FEDEX)to ensure the safe arrival of goods in your hands and reduce the possibility of lost if your order amount over $200,you can also choose Expedited Shipping for your small order if you wanted it urgently. Do send message before open any cases,we can handle any kinds of problem to make you satisfied with our business. We love to hear the voice of your advice!!Thank you and have a pleasant shopping!!!On Sep-24-20 at 06:34:07 PDT, seller added the following information: