DDR3 Desktop RAM 4GB & 8GB — 1333 / 1600 / 1866MHz (PC3-10600 / PC3-12800 / PC3-14900) 240‑Pin DIMM 1.5V

High-performance DDR3 desktop memory modules, offered as single sticks or dual-module kits. Choose 4GB or 8GB modules in the following kit options: 1x4GB = 4GB total (one 4GB module); 2x4GB = 8GB total (two 4GB modules); 1x8GB = 8GB total (one 8GB module); 2x8GB = 16GB total (two 8GB modules). Available speeds and PC3 ratings for 4GB modules: 1333MHz / PC3-10600, 1600MHz / PC3-12800, 1866MHz / PC3-14900. The same speed/PC3 options are offered for 8GB modules: 1333MHz / PC3-10600, 1600MHz / PC3-12800, 1866MHz / PC3-14900. Form factor and electrical: DDR3 240‑pin DIMM designed for desktop systems, operating at 1.5V.