The Samsung 32GB 2Rx4 PC4 2400T DDR4 SDRAM memory module set includes four modules with a total capacity of 128GB. Each module has a capacity of 32GB and is designed for high performance with a bus speed of PC4-19200 (DDR4-2400). These modules are ECC memory and registered, making them suitable for demanding computing tasks. Manufactured by Samsung in China, these DDR4 memory modules are a reliable choice for enhancing the performance and efficiency of a computer system.