The Samsung 40GB (5x8GB) 2Rx4 PC3-10600R (DDR3-1333) Memory M393B1K70CH0-CH9Q5 is a high-quality server memory module designed for enterprise networking and server applications. With a total capacity of 40GB spread across 4 modules, each with a capacity of 8GB, this DDR3 SDRAM module offers reliable performance. It features ECC memory, registration, and fully buffered technology to ensure data integrity and stability. With a bus speed of PC3-10600R (DDR3-1333) and 240 pins, this Samsung memory module is a dependable choice for servers and networking systems requiring high-performance memory solutions.