The Kingston 2GB DDR3 PC3-10600U Desktop RAM consists of two DIMM modules with a total capacity of 2GB each, providing a total memory capacity of 4GB. This RAM model, Kingston KVR1333D3N9 / 8G LP, operates at a bus speed of PC3-10600 (DDR3-1333) and features ECC memory for added reliability. With its 240 pins, this memory unit is designed for desktop computers requiring DDR3 SDRAM technology for optimal performance. Ideal for upgrading or expanding memory capacity in your system, this Kingston RAM is a trusted and reliable choice for enhancing your computer's speed and efficiency.