This lot includes 2 Micron 256MB laptop RAM memory modules in SO-DIMM form factor. These vintage memory modules have been tested and confirmed to be in working condition. With a total capacity of 256 MB and a bus speed of PC-133, these memory modules are ideal for upgrading older laptops to improve performance. Additionally, these modules have a lifetime manufacturer warranty and are designed with ECC memory features for enhanced reliability. Made in the United States, this product offers a reliable and durable memory upgrade solution for those looking to enhance their laptop's capabilities.