The Samsung 64GB DDR3 4Rx4 PC3-8500R Server Memory M393B2K70CMO-YF8 is a high-quality memory module designed for server use. With a total capacity of 64GB spread across 4 modules, each with a capacity of 16GB, this DDR3 SDRAM RAM provides fast data transfer speeds at PC3-8500 (DDR3-1066) bus speed. It features ECC memory and is registered, ensuring reliable performance in server environments. The DIMM form factor and 240 pins make it compatible with a wide range of servers, making it a dependable choice for enhancing server performance and efficiency.