Listing is for a single (1x) memory module with 16gb total capacity. Previously used in working condition.The 16GB Crucial Ballistix Sport LT White DDR4 PC4-19200 UDIMM BLS16G4D240FSC.16FBD is a high-performance server memory module designed for enterprise networking and server applications. With a total capacity of 16GB and a single module design, this DDR4 memory module offers reliability and speed for demanding computing tasks. Manufactured by Crucial in the United States, this memory module is a solid choice for businesses looking to enhance their server capabilities with a trusted and quality product.