Cisco 16GB 1Rx4 DDR4-2666 PC4-21300 ECC Registered Memory Samsung M393A2K40DB2-CTD UCS-MR-X16G1RS-H 15-105079-01

Upgrade your Cisco UCS server infrastructure with the Cisco UCS-MR-X16G1RS-H 16GB DDR4 Registered ECC memory module. Built with high-quality Samsung DRAM components, this enterprise-grade RDIMM delivers reliable performance, enhanced data integrity, and efficient memory bandwidth for demanding virtualization, database, cloud, and business-critical workloads. Operating at DDR4-2666 (PC4-21300) speeds, this module is designed to provide dependable operation in compatible Cisco UCS servers while supporting ECC error correction for improved system stability.

Ideal for data center environments, the Cisco UCS-MR-X16G1RS-H combines 16GB of capacity with a 1Rx4 single-rank architecture, making it an excellent choice for expanding server memory resources while maintaining compatibility with Cisco-certified hardware platforms.

• SKU: M393A2K40DB2-CTD-CISCO
• Capacity: 16GB
• Memory Type: DDR4 SDRAM
• Speed: DDR4-2666 / PC4-21300
• Form Factor: 288-Pin RDIMM
• Rank Configuration: 1Rx4
• Error Checking: ECC (Error-Correcting Code)
• Registered/Buffered: Registered (RDIMM)
• Voltage: 1.2V
• Manufacturer: Samsung
• Manufacturer Part Number: M393A2K40DB2-CTD
• Cisco Part Number: UCS-MR-X16G1RS-H
• Cisco Assembly Number: 15-105079-01

• Improves server responsiveness and multitasking capability
• Enterprise-class ECC protection helps reduce memory-related errors
• Optimized for Cisco UCS server environments
• Supports demanding virtualized and cloud workloads
• High-speed DDR4-2666 performance for improved throughput
• Genuine Samsung memory integrated into Cisco-qualified hardware

• M393A2K40DB2-CTD
• UCS-MR-X16G1RS-H
• 15-105079-01

The following modules are commonly deployed alongside this memory in compatible Cisco UCS platforms, provided system specifications and population rules are followed:

• Cisco UCS-MR-X16G1RS-H (16GB DDR4-2666 RDIMM)
• Cisco UCS-MR-X32G1RS-H (32GB DDR4-2666 RDIMM)
• Cisco UCS-MR-X64G2RS-H (64GB DDR4-2666 RDIMM)
• Samsung M393A2K40DB2-CTD (16GB DDR4-2666 ECC RDIMM)
• Samsung M393A4K40CB2-CTD (32GB DDR4-2666 ECC RDIMM)

• Product Type: Server Memory Module
• Capacity: 16GB
• Technology: DDR4 ECC Registered SDRAM
• Data Rate: 2666 MT/s
• Bandwidth: PC4-21300
• Rank: Single Rank (1Rx4)
• CAS Latency: CL19
• Voltage: 1.2V
• Pin Count: 288-Pin
• Buffered Type: Registered (RDIMM)
• ECC Support: Yes
• RoHS Compliant: Yes

This memory module is designed for enterprise server environments including:

• Cisco UCS Rack Servers
• Cisco UCS Blade Servers
• Virtualization Hosts
• Database Servers
• Cloud Infrastructure
• Business-Critical Enterprise Applications

Whether expanding an existing Cisco UCS deployment or replacing a failed memory module, the Cisco UCS-MR-X16G1RS-H provides the reliability, compatibility, and performance required for modern data center operations.