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Six green DDR5 RDIMM modules in a row, gold contacts visible, no heat spreaders

NEMIX RAM

NEMIX RAM DDR5 768GB 6x128GB 4800MHz CL40 2Rx4 ECC RDIMM Supermicro H13SSL-NT memory upgrade

SKU CH-K9W9-C981A

A 768 GB DDR5 server memory kit with six 128 GB Registered ECC RDIMMs at 4800 MHz CL40, 1.1 V, verified for the Supermicro H13SSL-NT motherboard

  • Capacity768GB (6 x 128GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.10V
  • ECCYes

Size 768GB 6X128GB

Show 24 more configurations
  • 768 GB total capacity across six 128 GB modules for maximum memory density
  • DDR5 4800 MHz speed with CL40 latency delivers rated performance on Supermicro H13SSL-NT
  • Registered ECC RDIMM architecture offloads the memory controller and corrects single-bit errors
  • 1 V operating voltage and 2Rx4 rank match the board's memory-controller expectations exactly
  • 288-pin RDIMM form factor fits the required slots without adapters or mismatches

Exact-match upgrade for Supermicro H13SSL-NT

This 768GB kit contains six 128GB DDR5 4800MHz RDIMMs built to the precise rank, voltage, and timing the motherboard's memory controller expects. Registered ECC architecture with CL40 latency and 1.1V operation ensures the system recognises full capacity at rated speed. It is designed for administrators who need maximum supported memory in this specific platform.

Registered RDIMM build with 288-pin DDR5 interface

The 2Rx4 registered design offloads the memory controller so every slot runs fully populated without signal degradation. ECC corrects single-bit errors on the fly to prevent silent data corruption and unplanned reboots. No heat spreader is fitted, so airflow must follow the server chassis specification. Verify the board's population order in the manual before installation.

Replaces smaller or mixed-capacity DDR5 RDIMM sets

Upgrading to this uniform 6x128GB kit eliminates population-rule conflicts and enables the full 768GB the platform supports. The jump is worth it when workloads demand maximum in-memory datasets or virtualisation density. It is not for systems that require UDIMM or SODIMM form factors, or for boards limited to lower per-slot capacities.

Highlights

  • 768 GB total capacity across six 128 GB modules for maximum memory density
  • DDR5 4800 MHz speed with CL40 latency delivers rated performance on Supermicro H13SSL-NT
  • Registered ECC RDIMM architecture offloads the memory controller and corrects single-bit errors
  • 1 V operating voltage and 2Rx4 rank match the board's memory-controller expectations exactly
  • 288-pin RDIMM form factor fits the required slots without adapters or mismatches

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR5 ECC RDIMM Registered Server Memory
Part NumberMR38400-724K6
Capacity768GB (6 x 128GB)
Type288-Pin DDR5 RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
ChipsetMajor OEM Samsung, Micron, Hynix
Heat SpreaderNo
Compatible SystemSupermicro
FeaturesDDR5 ECC RDIMM Motherboard Compatible
Package Content768GB 6X128GB DDR5 4800MHz PC5-38400 2Rx4 1.1V 288-PIN ECC RDIMM KIT

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Questions about this item

Does DDR5-4800 PC5-38400 run at 4800 MT/s on the Supermicro H13SSL-NT?

Yes, the kit is rated DDR5-4800 (PC5-38400) and the motherboard's memory controller will operate it at that speed when all six slots are populated with matching 2Rx4 registered ECC modules.

Will these 288-pin RDIMMs fit the H13SSL-NT's DIMM slots?

The board requires 288-pin registered DDR5 RDIMMs; each module in this 6 x 128 GB kit matches that form factor and the 2Rx4 rank layout the manual specifies for full-capacity population.

What is the correct installation order for all six modules?

Populate the slots in the exact sequence shown in the Supermicro H13SSL-NT manual — typically one DIMM per channel in the prescribed order — so the memory controller recognises the full 768 GB at DDR5-4800 with ECC active.

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