Kingston HyperX Fury 4GB DDR3 SDRAM Memory Module - For Desktop PC - 4 GB (1 x 8GB) - DDR3-1866/PC3-14900 DDR3 SDRAM - 1866 MHz - CL10 - 1.50 V - Non-ECC - Unbuffered - 240-pin - DIMM

Up to 1866 MHz speed with CL10 latency for smooth computer performance DIMM 4 GB memory allows you to have more programs open at a time DDR3-1866/PC3-14900 interface synchronizes electrical and clock signals for an efficient data transfer rate