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Twelve bare green DDR5 RDIMM sticks in a row

NEMIX RAM

NEMIX RAM CSE-GS7A-2000B 1.5TB (12x128GB) DDR5 4800 ECC RDIMM memory upgrade

SKU CH-Y5EW-3Q68T MPN CSE-GS7A-2000B

1.5 TB DDR5 4800 ECC RDIMM kit with twelve 128 GB registered modules for Supermicro SYS-551A-T workstations

  • Total capacity1.5 TB (12 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 5TB total capacity from twelve 128GB modules
  • DDR5 4800 speed rated at PC5-38400
  • ECC registered design protects data integrity
  • 1V operating voltage reduces power draw
  • Validated for Supermicro SuperWorkstation SYS-551A-T

1.5 TB DDR5 ECC RDIMM kit for Supermicro

This 12-module kit delivers 1.5 TB of DDR5 4800 registered ECC memory in 128 GB modules. It is built for Supermicro SuperWorkstation SYS-551A-T and Super X13SWA-TF platforms. The registered design and ECC support target mission-critical server and workstation workloads.

Upgrade from lower-capacity DDR5 RDIMM sets

Replacing smaller kits with this 12 x 128 GB configuration raises total system memory to 1.5 TB without mixing module densities. The jump is worth it when virtualization, large databases or scientific computing demand maximum registered ECC capacity on supported Supermicro motherboards.

Suits IT teams running memory-intensive Supermicro

Engineers who need 1.5 TB of validated DDR5 4800 ECC RDIMM memory for compatible Supermicro workstations will benefit. Builders using consumer motherboards, non-ECC platforms or systems limited to fewer than 12 DIMM slots should look elsewhere.

How it compares

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

Price $49,229.99
Pricier than about 96% of the 21,161 comparable items (median $397.99).
Total capacity 1.5 TB (12 × 128 GB)
Higher than about 97% of the 20,941 comparable items (median 32 GB).
Price per GB $32.82 per GB
Pricier than about 90% 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 numberMR38400-744K12
Total capacity1.5 TB (12 × 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 items1.5 TB (12 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does this 288-pin DDR5 RDIMM kit fit the Supermicro SuperWorkstation SYS-551A-T?

Yes, the 12-module kit is built for that workstation and uses the 288-pin DDR5 RDIMM form factor the board requires.

What is the correct slot population order when installing all twelve 128 GB modules?

Fill every DIMM slot in the sequence shown in the system manual; skipping a channel or mixing ranks will prevent the 1.5 TB configuration from posting.

When should the twelve 4Rx4 modules be replaced if ECC correctable errors start appearing?

Replace the affected module once the system logs show a rising correctable-error count on any of the 12 sticks, as continued use risks uncorrectable failures.

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