Check the listing for details. Mostek MK3880N 40 Pin IC CPU Z80 Processor NOS. Condition: New. Listed at 6.00 USD. Mostek MK3880N 40 Pin IC CPU Z80 Processor NOS These come straight from the original MOSTEK chip tubes. May have slight discoloration due to age. NEW OLD STOCK NOS These are NOT new reproduction chips. These are ORIGINAL New Old Stock. Never Used. Please Note: You will not receive the exact one pictured, that is for reference only. We will ship one in similar NOS condition. CHIP INFO: Mfr. #: AM9128-20PCManufacturer: AMD Description: Static RAM, 2Kx8, 24 Pin, Plastic, DIP Fast shipping, usually the same day. Fast Reliable Worldwide International Shipping Through EBAY INTERNATIONAL STANDARD DELIVERY. Warehouse Location: Upstairs Chip Section 4 If you have any questions, please ask, we are here to help! Please check out our other auctions for more slot machine and amusement parts. Thank you and Game On!