This listing is for one (2) 128MB PC133 SDRAM memory module. This is a 168-pin DIMM, ideal for older desktop computers or servers requiring PC133 (133MHz) synchronous DRAM. The module features Elpida chips and carries an IBM FRU sticker (19K4655), indicating it was likely used in an IBM system. It's a reliable component for upgrading or replacing memory in compatible vintage systems. Please check your system's compatibility before purchasing. Item is sold as shown in the images.