BLACK LABEL PERFORMANCE MEMORY 4GB 1x4GB PC3-14900 1833MHz 240-pin EXT CAS 10 DDR3 Memory for Intel Core i7 X79 Series Platforms -Single Pack Memory Kit. When only the fastest memory is good enough VisionTek BLACK LABEL ULTIMATE PERFORMANCE PC3-14900 DDR3 memory, running at 1866 MHz is the right call. Intended for use on Intel X79 SandyBridege E platforms, VisionTek DDR3 PC3-14900 memory is equipped with high efficiency extruded aluminum heat sinks which ensure longevity and performance in the most demanding environments. This memory is ideal for workstations used with 3D rendering or non-linear video editing, as well as the fastest consumer level systems used for online gaming. When you have to have the best of the best, VisionTek PC3-14900 DDR3 memory kits are the best available today. As with all of its memory offerings, VisionTek follows the JEDEC memory specification strictly which ensures system compatibility, and backs it's memory with a lifetime warranty. Ultra-high performance 4GB DDR3 (1X4GB) Single Pack kit for Intel Core i7 Includes VisionTek High Performance Extruded heat spreaders 1866MHz, 10-10-10-24, 1.65V, with Intel X79 SandyBridge E support. Lifetime warranty: This DDR3 memory kit is built to last under the most demanding, processor intensive environments, and is backed by a limited Lifetime warranty