Product information: 2GB DDR XMS3500LL Pro TwinX (2x1GB) CAS2Realizing the increasing need for greater system memory to take full advantage of memory-intensive applications while maintaining low latencies for best performance on the Athlon.64 platform, Corsair designed the XMS-3500LL PRO with the latest 64MBx8 high speed chips and specially designed Brain Power PCB. The latest real-world applications like Battlefield2 demand a lot more memory bandwidth. Moving system memory to 2GByte provides the necessary bandwidth to ensure ultimate gaming experience, improving performance by well over fifteen (15) percent. In addition to the total system memory, memory latency also plays a key role in overall performance. The new XMS-3500LL PRO SPD is programmed at Plug and Frag. latencies of 2-3-2-6-1T, making it the most ideal choice for the AMD platform. Other differentiating features include the enhanced PRO heat spreader for enhanced heat dissipation, and proprietary activityindicating LEDs that can aid in system troubleshoots.