Cisco UCSX-MRX16G1RE1 16GB DDR5-4800MHz ECC Registered Server RAM

The Cisco UCSX-MRX16G1RE1 16GB DDR5-4800MHz ECC Registered Server RAM is a server memory module designed for compatible Cisco Unified Computing System (UCS) and UCSX platforms. It provides 16GB of memory capacity and a rated data rate of 4800 MT/s for supported enterprise server configurations.

This module uses DDR5 SDRAM technology and a registered DIMM (RDIMM) design with ECC support. Cisco identifies the UCSX-MRX16G1RE1 as a 16GB DDR5-4800 RDIMM with a single-rank 1Rx8 configuration using 16Gb DRAM devices.

Key Features and Benefits

• 16GB capacity: Suitable for memory expansion in compatible enterprise servers.
• DDR5-4800 performance: Provides a rated data rate of 4800 MT/s on supported platforms.
• ECC memory: Helps detect and correct supported memory errors.
• Registered DIMM architecture: Designed for compatible server memory configurations.
• Single-rank 1Rx8 design: Uses a single rank of x8-organized DRAM devices.
• Cisco part-number identification: Helps identify the intended memory module for system compatibility checks.

Technical Specifications

Specifications are based on Cisco's published memory documentation. Actual memory speed depends on the server model, processor generation, and installed memory configuration.

Compatibility and Supported Systems

The UCSX-MRX16G1RE1 belongs to Cisco's DDR5-4800 memory family designed for supported UCS M7 systems using 4th Generation Intel Xeon Scalable processors. Compatibility must be confirmed against the specific server model and Cisco's memory population guidelines.

• Confirm the exact Cisco UCS or UCSX server model.
• Verify processor-generation support for DDR5-4800 RDIMMs.
• Follow the system's approved DIMM slot population sequence.
• Do not mix DDR4 and DDR5 modules or incompatible DIMM types.

Applications

• Enterprise server memory expansion
• Virtualization and virtual machine hosting
• Database and business application servers
• Cloud and data-center infrastructure
• Enterprise computing workloads on compatible Cisco platforms

Availability and Product Lifecycle

Cisco's published memory lifecycle documentation lists UCSX-MRX16G1RE1 among the DDR5-4800 memory part numbers affected by an end-of-sale announcement. The listed end-of-sale date was December 30, 2025. Buyers should verify current stock, product condition, warranty, and replacement options with their supplier.

Why Choose Cisco UCSX-MRX16G1RE1?

The Cisco UCSX-MRX16G1RE1 offers 16GB of DDR5-4800 ECC Registered memory for supported Cisco server configurations. Its exact part-number identification and registered design help buyers select memory intended for a compatible enterprise platform.

Frequently Asked Questions

1. What is the capacity of Cisco UCSX-MRX16G1RE1?

It is a 16GB DDR5 server memory module.

2. What is the rated speed?

The module is rated at DDR5-4800, equivalent to a data rate of 4800 MT/s.

3. Is this ECC Registered memory?

Yes. Cisco lists this part as a Registered DIMM in its DDR5-4800 memory family.

4. What does 1Rx8 mean?

1Rx8 indicates a single-rank module using x8-organized DRAM devices.

5. Can I use it in a desktop PC?

Generally, no. It is registered server memory and requires a compatible server platform.

6. Is it compatible with all Cisco UCS servers?

No. Compatibility depends on the exact UCS/UCSX model, processor generation, and supported memory configuration.

7. Is this memory still available from Cisco?

Cisco lists the DDR5-4800 memory family containing this part number as end-of-sale. Availability may depend on remaining stock or third-party suppliers.