A high-capacity 64GB DDR4 registered memory module with quad-rank x4 organization operating at 2133 MHz for Cisco systems. Features substantial memory capacity with registered buffering for enhanced signal integrity and enterprise-grade reliability optimized for Cisco equipment. Provides high memory density with early DDR4 technology designed for Cisco's networking and computing applications. Designed for Cisco servers requiring extreme memory capacity with reliable DDR4 performance and proven Cisco compatibility.