• Cisco UCS-MR128G2RG5 128GB DDR5-6400 RDIMM green white module
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Cisco

Cisco UCS-MR128G2RG5 | 128GB DDR5-6400 RDIMM | 2Rx4 (x4) 32Gbit | ECC Registered | 288-pin

UCS-MR128G2RG5

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Description

Performance-focused 128GB DDR5-6400 ECC Registered DIMM built for servers that support the highest DDR5 speeds, using 2Rx4 organization with 32Gbit ICs for balanced throughput and capacity. Ideal for memory-intensive workloads on next-gen platforms.

Features

- Top-tier DDR5-6400 speed for bandwidth-heavy applications
- Enterprise-grade ECC Registered reliability
- 2Rx4 layout for strong performance scaling
- Supports large memory footprints with 128GB per DIMM
- Energy-efficient 1.1 V operation
- Downclock compatibility with lower-speed platforms

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

- Capacity: 128 GB
- Memory type: DDR5 ECC RDIMM (Registered)
- Data rate: 6400 MT/s (DDR5-6400)
- Speed class: PC5-51200
- Rank/organization: 2Rx4 (x4)
- DRAM density: 32Gbit
- Module pins: 288-pin
- Voltage: 1.1 V nominal
- ECC: Yes (72-bit total bus width)
- Theoretical bandwidth: up to 51.2 GB/s per module
- Compatibility: Servers requiring DDR5 ECC RDIMM

FAQs

Q: Will this 6400 MT/s DIMM work in a system that only supports 5600 MT/s?
A: Yes. It will operate at the highest speed supported by the system, such as 5600 MT/s.

Q: Is this module UDIMM or RDIMM?
A: It is an RDIMM (Registered DIMM) with ECC for server platforms.

Q: Can I mix this with other capacities or speeds?
A: Mixing is often possible but must follow the server’s memory population rules. Matching type, rank, and voltage is recommended.

Q: Does this require a specific CPU generation?
A: It requires a platform that supports DDR5 ECC RDIMM; consult your server CPU/chipset documentation.

Q: Is ECC mandatory for this module?
A: Yes. This module includes ECC and is intended for ECC-capable server boards.

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