This lot contains two Kingston KVR800D2N6/1G DDR2 SDRAM modules, each with a capacity of 2GB. These modules have a bus speed of PC2-6400 (DDR2-800) and are ideal for boosting your computer's memory. They are compatible with a variety of computer models and come from a reliable brand in the industry. If you're looking to upgrade your computer's memory, this lot of two Kingston DDR2 SDRAM modules is a great option to consider. With a total capacity of 4GB, these modules can help improve your computer's performance and speed. They are easy to install and come from a trusted brand, making them a smart choice for any computer user.