The CISCO UCS-MR-X64G4RS-H is a high-density 64GB DDR4 Through-Silicon Via (TSV) Registered DIMM (RDIMM) memory module, offering a powerful upgrade for Cisco Unified Computing Systems. Operating at a speed of 2666 MHz with a PC4-21300 rating, this quad-rank, x4 architecture module is designed for unmatched speed and reliability. The 1.2V operation voltage optimizes power efficiency without compromising on performance. TSV technology enables higher memory density by vertically stacking memory dies, making this RDIMM an ideal choice for enterprises requiring substantial memory capacity to manage large datasets, high-performance computing tasks, or extensive virtualization environments. This module enhances system capability to handle multiple applications simultaneously, ensuring smooth operation and improved system responsiveness. The CISCO UCS-MR-X64G4RS-H represents a critical component for businesses aiming to upgrade their server infrastructure to meet today's demanding data processing needs.