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Eight green DDR5 RDIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 1TB (8x128GB) DDR5 4800 CL40 1.1V 4Rx4 ECC RDIMM Server Memory Upgrade

SKU CH-FRDV-710K1

Eight 128 GB DDR5 RDIMMs deliver 1 TB of registered ECC memory at 4800 MT/s with CL40 latency and 1.1 V operation

  • 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 with eight 128GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM for data integrity
  • 1V operating voltage reduces power draw
  • Validated for SuperMicro SuperServer SSG-521E-E1CR24H SSG-521E-E1CR24L X13SEDW-F

1TB DDR5 ECC RDIMM kit for Supermicro

This 1TB kit contains eight 128GB DDR5 4800 registered DIMMs built for Supermicro Storage SuperServer platforms such as the SSG-521E-E1CR24H and SSG-521E-E1CR24L. The modules run at 1.1V with CL40 latency and use a 4Rx4 organisation. They are designed for enterprise workloads that demand maximum capacity per channel.

Who this suits and who it does not

IT teams upgrading compatible Supermicro servers to the full 1TB configuration will find the matched kit straightforward to deploy. Buyers who need fewer than eight modules, a different speed grade, or memory for non-Supermicro platforms should look at other options.

4Rx4 quad-rank DDR5 organisation

Each 128GB module uses a 4Rx4 layout, placing four ranks of x4 chips on a single 288-pin RDIMM. This density allows the eight-module kit to reach 1TB while the registered buffer and ECC maintain signal integrity and data protection at DDR5 4800 speeds.

How it compares

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

Price $32,684.99
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 $32.68 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 numberMR38400-744K8
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 the 288-pin DDR5 RDIMM modules need any firmware updates or thermal-pad replacements during their service life?

The modules have no heat spreader and carry a lifetime replacement warranty; no firmware updates or pad changes are scheduled by the manufacturer.

What electrical or thermal limit appears first when all eight 128 GB sticks run at 4800 MT/s continuously?

The kit operates at 1.1 V with CL40 latency; sustained loads stay within the rated voltage and timing envelope without a lower throttle point.

How much heat and fan noise does the 1 TB kit add when the server runs 24/7?

Registered DDR5 at 1.10 V and no heat spreader keeps thermal output low, so existing chassis airflow handles cooling without extra fan speed.

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