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Eight green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM CSE-GS7A-2000B 1TB (8x128GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-N1EX-8ZS48 MPN CSE-GS7A-2000B

Eight 128 GB DDR5 4800 CL40 ECC registered DIMMs deliver 1 TB for Supermicro SYS-551A-T workstations

  • Total capacity1 TB (8 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 1TB total capacity across eight 128GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered design detects and corrects data errors
  • Low 1.10V operating voltage reduces server power draw
  • Validated for Supermicro SuperWorkstation SYS-551A-T compatibility

1TB DDR5 ECC RDIMM kit for Supermicro servers

This 1TB kit contains eight 128GB DDR5 4800 registered DIMMs built for Supermicro SuperWorkstation SYS-551A-T and X13SWA-TF platforms. It targets IT teams expanding memory capacity in validated enterprise servers and workstations. Each module operates at 1.1V with CL40 latency and 4Rx4 organisation. The kit is sold new and ready for installation.

Capacity and headroom: eight modules fill eight

Eight 128GB modules deliver 1TB total capacity across a full eight-slot population. The 4Rx4 rank structure provides high density per channel but increases electrical load on the memory controller. At DDR5 4800 the kit handles large datasets and virtualisation workloads within the rated speed. Systems requiring higher frequencies or lower latency than CL40 will not reach those targets with this kit.

Registered ECC RDIMM with 4Rx4 organisation

The decisive specification is the registered ECC RDIMM format combined with 4Rx4 rank architecture. This combination determines compatibility with the target Supermicro platforms and governs signal integrity at full population. Buyers must confirm their motherboard supports 4Rx4 registered modules at DDR5 4800 before purchase. Modules without heat spreaders rely on system airflow for cooling.

How it compares

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

Price $30,349.99
Pricier than about 93% of the 21,161 comparable items (median $397.99).
Total capacity 1 TB (8 × 128 GB)
Higher than about 93% of the 20,941 comparable items (median 32 GB).
Price per GB $30.35 per GB
Pricier than about 87% 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 numberMR38400-744K8
Total capacity1 TB (8 × 128 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 rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items1 TB (8 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will this 4800 CL40 DDR5 kit run alongside my existing DDR5 modules in the SuperMicro SYS-551A-T?

The kit is validated for the SYS-551A-T and X13SWA-TF; mixing with other DDR5 modules is not guaranteed and may prevent the system from training at 4800.

How can I confirm the 1.1V 4Rx4 modules are detected at 4800 MT/s after installation?

Enter the BIOS and verify each slot shows 128 GB, 4800 MT/s, CL40, 1.1 V, ECC registered; run a memory diagnostic to confirm stability.

Does the package include only the eight 128 GB RDIMMs or are heat spreaders and cables supplied?

The box contains the eight 128 GB 288-pin DDR5 RDIMMs only; no heat spreaders or cables are included.

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