HX-MR-X64G4RS-H Cisco 64GB PC4-21300 DDR4-2666MHz

HX-MR-X64G4RS-H Overview

The HX‑MR‑X64G4RS‑H is a high-capacity 64 GB DDR4 memory module specifically engineered for Cisco enterprise servers. It operates at a speed of 2666 MHz (PC4‑21300) and comes in a registered ECC configuration, delivering high reliability for data-critical applications. Designed as a quad-rank (4Rx4) DIMM, it fits into the standard 288‑pin slot and runs on a low 1.2 V supply. Its CAS latency is typically CL19, ensuring balanced performance at this speed tier. Under the hood, it utilizes TSV or 3DS memory technology to achieve its quad-rank architecture, enhancing density and performance efficiency.