Proline DDR3 module 16 GB DIMM 240 pin 1066 MHz / PC3 8500  registered It is  to be compatible with your system and to work right the first time.GB DDR3 SDRAM Memory Module is the perfect upgrade for your computer. With a memory size of 16 GB , it provides ample space for multitasking and running memory-intensive applications. The memory speed of 1066 MHz ensures fast and efficient performance, allowing you to work seamlessly without any lag.