The PNY MD6144KD3-1600-X9 is a 6GB memory kit comprising three 2GB DDR3-1600MHz PC3-12800 modules. This non-ECC unbuffered, single-rank memory offers reliable performance with a CL11 latency and operates at 1.5V. Designed for systems requiring a performance boost, this kit is perfect for enhancing multitasking and overall system responsiveness.