• Cisco UCS-MR128G4RE1S 128GB DDR5-4800 RDIMM green silver module
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Cisco

Cisco UCS-MR128G4RE1S | 128GB DDR5-4800 RDIMM | 4Rx4 (x4) 16Gbit | ECC Registered | 288-pin

UCS-MR128G4RE1S

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Description

128GB DDR5-4800 ECC Registered DIMM with 4Rx4 organization using 16Gbit ICs, ideal for memory-dense servers requiring stable throughput and robust error correction. Suited for virtualization, databases, and general compute.

Features

- High-capacity 128GB module for dense server configurations
- ECC Registered for enterprise-grade reliability
- 4Rx4 layout for compatibility with memory-dense platforms
- 1.1 V power for improved efficiency
- JEDEC-compliant DDR5 performance
- Operates at platform-supported speeds when mixed

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: 4800 MT/s (DDR5-4800)
- Speed class: PC5-38400
- Rank/organization: 4Rx4 (x4)
- DRAM density: 16Gbit
- Module pins: 288-pin
- Voltage: 1.1 V nominal
- ECC: Yes (72-bit total bus width)
- Theoretical bandwidth: up to 38.4 GB/s per module
- Compatibility: Servers requiring DDR5 ECC RDIMM

FAQs

Q: Is this module ECC and Registered?
A: Yes. It is an ECC Registered DIMM for compatible server platforms.

Q: Can I mix this with 2Rx4 128GB DIMMs?
A: Mixing ranks/organizations is often restricted. Follow your server’s memory population guidelines for best results.

Q: Will it downclock on platforms that support only lower speeds?
A: Yes, it will run at the highest speed supported by the platform.

Q: Is this suitable for desktops?
A: No. RDIMMs require server/workstation boards that support Registered ECC DDR5.

Q: What pin count does it use?
A: 288-pin DDR5 RDIMM standard.

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