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Sixteen green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM CSE-GS7A-2000B 256GB (16x16GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-1P0K-EGCGC MPN CSE-GS7A-2000B

256 GB of DDR5 ECC registered memory in sixteen 16 GB modules running at 4800 MT/s with CL40 latency

  • Total capacity256 GB (16 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 256 GB total capacity across 16 modules for dense server workloads
  • DDR5 4800 MT/s speed with PC5-38400 bandwidth for high-throughput applications
  • CL40 CAS latency at 1.10 V for efficient registered operation
  • ECC and registered design protects data integrity in mission-critical systems
  • Validated for Supermicro SuperWorkstation SYS-551A-T and X13SWA-TF platforms

Server memory kit

This NEMIX RAM kit provides 256GB of DDR5 ECC registered memory in sixteen 16GB modules. It runs at 4800MHz with CL40 latency and 1.1V voltage. The 288-pin RDIMM design targets Supermicro SuperWorkstation SYS-551A-T and X13SWA-TF platforms.

Suited for registered ECC workloads

This kit fits administrators expanding Supermicro workstations that require registered ECC RDIMMs. Builders needing unbuffered memory, non-ECC modules or consumer DDR5 form factors cannot use this product.

Module-only package

The box contains sixteen 1Rx8 RDIMM modules without heat spreaders. No cables, software licences or additional accessories are included, so installation relies entirely on the host system's memory slots and cooling.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $6,404.99
Pricier than about 82% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (16 × 16 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $25.02 per GB
Pricier than about 69% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineSuperMicro Server/Workstation Compatible Series Memory
Model nameSuperMicro DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-618K16
Total capacity256 GB (16 × 16 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank1Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items256 GB (16 × 16 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Does this 16-module kit require a SuperMicro SuperWorkstation SYS-551A-T or X13SWA-TF motherboard to function?

The kit is validated for the SuperMicro SuperWorkstation SYS-551A-T and X13SWA-TF platforms; other DDR5 RDIMM systems may work but are not confirmed by the supplier.

Can I mix these 1Rx8 CL40 registered modules with older DDR5 ECC RDIMMs of different rank or speed?

Mixing ranks, speeds or latencies is not recommended; the motherboard will typically downclock all modules to the slowest common settings, which can reduce stability.

How do I verify the full 256GB kit is recognised and running at 4800 MT/s with ECC active?

Enter the system BIOS or UEFI and check the memory configuration screen; it should list 16 installed modules, show 4800 MT/s, CL40 timings and report ECC as enabled.

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