The CT2K51272BR160BJ is a kit of DDR3 memory modules from Crucial, each providing 4GB of ECC UDIMM RAM, which combines to a total of 8GB. Operating at DDR3-1600 speeds and designed to fit in systems with 240-pin slots, these modules meet the PC3-12800 specification. Ideal for use in servers and workstations, the ECC (Error Correcting Code) feature significantly enhances system stability by automatically detecting and correcting single-bit memory errors, which is vital for mission-critical systems and data-sensitive applications. This kit is engineered for seamless compatibility and reliability, embodying Crucial's commitment to quality.