PNY XLR8 8GB  DDR3 1866MHz   (PC3 14900) 240-Pin CAS CL9 Dual Channel Desktop Memory Module -MD8192SD3-1866-X9 Capacity: 8 GB Memory Type: DDR3 SDRAM - DIMM 240-pin Upgrade Type: Generic Overclocked-Boasting Uber High Speed 1866MHz and low latencies CAS CL 9 to meet the demanding needs of hard core gamers and enthusiasts Custom heat sink featuring cooling fins for superior heat extraction for enhanced reliability and endurance for high stress gaming and overclock conditions Single Speed: 1866MHz Type: DDR3 Desktop Timing/Tested Latency:9-10-9-28 Latency: CAS 9 Lifetime Warranty and Free 24-7 Technical Support