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Four green DDR5 RDIMM modules, bare chips, no heat spreaders

NEMIX RAM

NEMIX RAM 512GB (4x128GB) DDR5 4800 ECC RDIMM CL40 1.1V memory upgrade

SKU CH-T4G2-E8QAB

512 GB kit of four 128 GB DDR5 4800 ECC registered DIMMs at CL40 and 1.1 V for Supermicro servers

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Massive 512GB capacity for heavy workloads
  • DDR5 4800 speed handles data-intensive tasks
  • ECC registered design protects data integrity
  • 1V operation reduces server power draw
  • Validated for SuperMicro SuperServer SSG-521E systems

512 GB DDR5 ECC RDIMM kit

This 512 GB kit contains four 128 GB DDR5 4800 ECC registered DIMMs built for Supermicro servers and workstations. It targets IT teams and system builders who need maximum registered memory capacity for virtualization, database or compute workloads.

Check motherboard RDIMM support and slot count

Verify that your Supermicro platform accepts 288-pin DDR5 RDIMMs and has at least four available slots. The modules run at 1.1 V with CL40 latency and a 4Rx4 organisation, so the memory controller must support registered ECC operation at DDR5 4800 speeds.

Four-module kit enables full population

The package delivers four matched 128 GB sticks, allowing you to populate a full bank or complete a quad-channel configuration in one order. No heat spreaders are included, so ensure your chassis airflow meets the server vendor's thermal guidelines for dense memory layouts.

How it compares

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

Price $14,136.99
Pricier than about 90% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $27.61 per GB
Pricier than about 77% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineSuperMicro Server/Workstation Compatible Series Memory
Model nameSuperMicro DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-744K4
Total capacity512 GB (4 × 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 items512 GB (4 × 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 the 512GB kit ship as four 128GB modules or do I need to buy extra sticks?

The kit contains four 128GB modules for a total of 512GB; no additional sticks are required.

Should I choose the 4Rx4 registered ECC version or a different rank configuration for my Supermicro SSG-521E-E1CR24H?

The 4Rx4 registered ECC RDIMM is the specified configuration validated for the listed Supermicro Storage SuperServer models.

What does the DDR5 4800 CL40 rating deliver in a real server workload?

The modules run at 4800 MT/s with CL40 latency at 1.1V, providing ECC error correction and registered signalling for stable operation in the supported Supermicro platforms.

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