1 piece of an SY2101A 256 X 4 RAM by Synertek in a 22 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 buy multiple items, please wait for an invoice, as we always combine shipping.Visit our website - www.unicornelectronics.com for all your electronic component needs.