This dual-channel 4GB desktop memory kit consists of two matched 2GB G.SKILL Ripjaws Series DDR3 RAM modules model F3-12800CL9D-4GBRL. Operating at 1600MHz (PC3-12800) with CL9-9-9-24 low latency timings at 1.50V, these 240-pin DIMMs feature blue anodized aluminum heat spreaders for thermal dissipation and system stability during gaming or desktop multitasking. Designed for desktop PC upgrades and custom motherboard builds, this kit comes in its protective clam storage packaging.