New Old Stock (NOS) Samsung 64GB 2Rx4 PC4-2933Y-RA2-12-DC1 server memory module is a high-quality DDR4 SDRAM with a total capacity of 64GB. This module is designed for server use with ECC memory features, ensuring reliable performance and error correction. With a bus speed of PC4-23400 (DDR4-2933) and 288 pins, this memory module is a solid and tested choice for enhancing server performance and stability. Guaranteed to work in Dell R640, R740, R840. Made in South Korea, this Samsung module is a dependable unit for expanding server memory capacity. I have many units in inventory, this sale is for one 64GB SDRAM module only. I may bundle modules together and offer free shipping depending on quantity.