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Four green DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 256GB (4x64GB) DDR5 4800 CL40 ECC RDIMM Server memory upgrade

SKU CH-XFMJ-5T1QR

256GB kit of four 64GB DDR5 4800 CL40 ECC registered DIMMs for Supermicro servers

  • Capacity256GB (4 x 64GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 256 GB total capacity across four 64 GB modules
  • DDR5 4800 MT/s speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM design protects data integrity
  • 10 V operating voltage reduces power draw
  • Validated for Supermicro SuperServer SSG-521E-E1CR24H and SSG-521E-E1CR24L

Server Memory Kit for Supermicro Systems

This NEMIX RAM kit supplies 256GB of DDR5 ECC registered memory in a matched set of four 64GB modules. It is built for Supermicro Storage SuperServer SSG-521E-E1CR24H, SSG-521E-E1CR24L and X13SEDW-F platforms that require registered DIMMs with error correction.

Administrators Needing Verified Compatibility

Suits IT teams who must guarantee stability in mission-critical Supermicro servers and want modules stress-tested under load. Not for builders using consumer motherboards that accept only unbuffered non-ECC DIMMs, or for anyone needing a different capacity or speed than this kit provides.

4800 MT/s Registered ECC at CL40

The kit runs at DDR5 4800 (PC5-38400) with a CAS latency of CL40 and 1.10V across 288-pin 2Rx4 registered modules. This speed and latency combination determines whether the memory matches the server's qualified vendor list and timing requirements.

Highlights

  • 256 GB total capacity across four 64 GB modules
  • DDR5 4800 MT/s speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM design protects data integrity
  • 10 V operating voltage reduces power draw
  • Validated for Supermicro SuperServer SSG-521E-E1CR24H and SSG-521E-E1CR24L

Specifications

BrandNEMIX RAM
SeriesSuperMicro Server/Workstation Compatible Series Memory
ModelSuperMicro DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-924K4
Capacity256GB (4 x 64GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemSupermicro
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank2Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content256GB (4X64GB) DDR5 4800MHZ PC5-38400 2Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does my SuperMicro SSG-521E-E1CR24H server have the registered DDR5 slots this 4800 CL40 kit requires?

The kit is built for SuperMicro Storage SuperServer SSG-521E-E1CR24H and SSG-521E-E1CR24L systems using 288-pin DDR5 RDIMM slots at 1.1 V.

Can I keep my existing DDR5 4800 CL40 modules and add this 256 GB kit alongside them?

All four 64 GB modules are 2Rx4 registered ECC at 4800 MT/s CL40 1.1 V; matching rank, speed, voltage and ECC type lets them run together in the same channel.

How do I confirm the full 256 GB is recognised and ECC is active after installation?

Check the BIOS memory summary for 256 GB total, 4800 MT/s speed, CL40 timings and ECC enabled status.

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