The Crucial 32GB DDR4-2666 Memory kit includes two 16GB modules, making it a total capacity of 32GB. It features a UDIMM form factor, DDR4 SDRAM type, and PC4-21300 bus speed. The memory modules are designed for high performance and reliability, with a lifetime manufacturer warranty. They also include ECC memory features, which provide error correction for increased data integrity. This memory kit is ideal for upgrading the memory capacity of your computer for improved performance and multitasking capabilities.