VisionTek's High Performance Adrenaline Series DDR2 memory is the seamless PC upgrade. Whether just refreshing an existing desktop or installing a new operating system, Adrenaline Series DDR2 memory from VisionTek offers a burst of performance. Either in single slot or dual slot configuration, VisionTek Adrenaline Series DDR2 memorystrictly follows the JEDEC standard and is built and tested with speed and reliability in mind. Whether it is used for productivity, social networking, high performance 3D PC Gaming, and streaming video over wireless networks, VisionTek's Adrenaline Series DDR2 Desktop memory is ideal. Timing is 5-5-5-15 for PC2-5300, and 5-5-5-18 for PC2-6400 memory.