The G.skill Trident X DDR3 2400 CL10-12-12-31 65V memory modules consist of two DDR3 SDRAM DIMM modules with a total capacity of 8 GB. Each module has a capacity of 4 GB, making them ideal for expanding the memory capacity of a computer. With a bus speed of PC3-19200 (DDR3-2400), these memory modules offer high performance for demanding computing tasks such as gaming, multitasking, and content creation. The G.skill Trident X series is known for its reliability and speed, making it a popular choice among computer enthusiasts and gamers.