AddOn AM1333D3DRLPR/8G x1 JEDEC Standard Factory Original 8GB DDR3-1333MHz Registered ECC Dual Rank 1.35V 240-pin CL9 RDIMM - 100% compatible and guaranteed to work

No matter how heavy and numerous the applications that you are using, 1333 MHz memory speed with Registered signal will run them smoothly 8 GB memory allows you to have more programs open at a time 240-pin-pin DDR3-1333/PC3-10660 interface multiplexes 2-bit data from memory cell and I/O buses to minimize processor idle time and enhance your computers performance