The Kingston Technology System Specific Memory 16GB DDR4 2666MHz Memory Module is a high-quality memory module designed for specific systems. With a total capacity of 16GB and a form factor of DIMM, this DDR4 SDRAM module is ideal for workstation use. It features ECC memory and is registered, ensuring reliable performance and error correction. The module has 288 pins and is a single unit, making it a perfect choice for upgrading your system's memory capacity.