1 piece of a MK4516N-15 16K dynamic RAM by Mostek in a 16 pin DIP package. Parts are new old stock.Parts are fully guaranteed.All ICs are shipped in plastic tubes, in a padded envelope.All domestic shipments under 5 pounds are sent via USPS with delivery confirmation. All others shipped via UPS.If you win multiple items, please wait for an invoice as we always combine shipping.Visit our website - www.unicornelectronics.com for all your electronic component needs.