DDR3 RAM 16GB Kit (2x8GB) 1600MHz CL11 DIMM Wlizedle Desktop Memory PC3-12800 24A solid aluminum heat spreader enables fast heat dissipation, lowers hardware power consumption and efficiently dissipates heat from each module so that they consistently run at high clock speeds. 1600MHz RAM can downclock to 1333MHz or 1066MHz if your computer system specification only supports 1333MHz or 1066MHz. Compatible with all motherboards. In order to avoid disputes between the two parties, check the specifications of the device before purchasing. For example, computer motherboard model/RAM model/RAM slot/RAM frequency/maximum compatible memory capacity. Please contact our service staff if you have any questions, we will sort it out within 24 hours. Thanks for choosing us. Wish a happy shopping experience.