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Green rectangular DDR5 RDIMM circuit board with gold edge connectors and black memory chips, no heat spreader

NEMIX RAM

NEMIX RAM 128GB DDR5 4800MHz PC5-38400 CL40 2Rx4 1.1V ECC Registered RDIMM Supermicro H13SRH memory upgrade

SKU CH-Y1MV-V6WHS

128 GB DDR5 4800 MHz registered ECC RDIMM built for the Supermicro H13SRH motherboard

  • Total capacity128 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB

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Speed 4800MHz

  • 128GB capacity scales memory-intensive workloads on Supermicro H13SRH
  • DDR5 4800MHz speed delivers rated throughput with CL40 timing
  • Registered ECC architecture corrects single-bit errors for production stability
  • 2Rx4 1.10V configuration matches board memory-controller requirements exactly
  • 288-pin RDIMM form factor fits the motherboard's DIMM slots precisely

128GB DDR5 4800MHz Registered ECC RDIMM

This 128GB DDR5 4800MHz module is built for the Supermicro H13SRH motherboard. It uses a 288-pin RDIMM form factor with Registered architecture and ECC. The 2Rx4 organisation and CL40 timing match the board's memory controller requirements. It is intended for servers that need maximum capacity per slot with error correction.

Capacity and headroom at 4800 CL40

A single 128GB DIMM fills one slot and lets the board reach high total memory when all supported slots are populated. Registered buffering keeps the memory controller stable at full capacity. The 1.1V operation and CL40 latency are the rated specifications. Systems that need more than one DIMM per channel or faster speeds will exceed what this module provides.

Upgrading from smaller or unbuffered DDR5

This module replaces lower-capacity RDIMMs or non-ECC UDIMMs that the H13SRH cannot use at full population. The jump is worth it when the workload demands the full 128GB per slot with ECC protection and Registered stability. Buyers who need UDIMM form factor, non-ECC operation, or speeds above 4800MHz should look elsewhere.

How it compares

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

Price $4,162.99
Pricier than about 77% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $32.52 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 lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR38400-724K1
Total capacity128 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
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

Will the 2Rx4 rank and 1.1V voltage let this 128GB DDR5 module run at 4800MHz alongside existing RDIMMs in my Supermicro H13SRH?

The module matches the board's required 2Rx4 rank, 1.1V voltage, and CL40 timing so the memory controller recognises it at full capacity and rated speed when populated per the manual.

How can I confirm the ECC Registered RDIMM is operating correctly after installation?

Check the BIOS memory map for the full 128GB at DDR5 4800 (PC5-38400) with ECC active, then run a memory diagnostic to verify single-bit error correction.

Does the package include a single 128GB DDR5 4800MHz 288-pin RDIMM or a multi-stick kit, and are any brackets or cables needed?

The box contains one 128GB DDR5 4800MHz PC5-38400 2Rx4 1.1V CL40 288-pin ECC Registered RDIMM; no extra brackets or cables are required.

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