KVR16N11S8K2/8 8GB 1600MHz DDR3 Non-ECC CL11 DIMM (Kit of 2) SR x8 Standard 512M X 64 Non-ECC 1600MHz 240-pin Unbuffered DIMM (DDR3, 1.5V, CL11, FBGA, Gold) Form Factor: Memory Module Pieces/Unit: 2 (Two 4GB modules, totaling 8GB) Warranty: Lifetime