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Eight green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 512GB (8x64GB) DDR5-4800 CL40 2Rx4 ECC RDIMM Supermicro H13SRH

SKU CH-CHM1-CW463

Eight 64 GB DDR5-4800 CL40 2Rx4 registered ECC RDIMMs totalling 512 GB, validated for the Supermicro H13SRH motherboard

  • Total capacity512 GB (8 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 512GB 8X64GB

Show 18 more

Speed 4800MHz

  • 512 GB capacity from eight 64 GB modules for maximum server memory density
  • DDR5-4800 speed with CL40 latency at 1.10 V for rated performance
  • Registered ECC design with 2Rx4 organisation corrects errors and stabilises fully populated slots
  • 288-pin RDIMM form factor matches Supermicro H13SRH memory-controller requirements exactly
  • Lifetime replacement coverage plus US-based technical support for long-term reliability

512GB DDR5-4800 ECC RDIMM kit

This 512GB kit contains eight 64GB DDR5-4800 registered ECC modules built for the Supermicro H13SRH motherboard. Each module runs at 1.1V with CL40 latency and a 2Rx4 organisation. The registered design lets the memory controller address every slot at full capacity. System integrators and administrators who need maximum supported memory on this platform use this kit.

Thermals noise and power draw

The modules operate at the standard DDR5 voltage of 1.1V without a heat spreader. Registered buffering reduces the electrical load on the motherboard memory controller when all eight slots are populated. Power consumption scales with the number of active ranks and the 4800 MT/s data rate. No active cooling is included, so chassis airflow must handle the heat from a fully populated bank.

Build fit and requirements

Installation requires a Supermicro H13SRH motherboard with eight 288-pin RDIMM slots and a BIOS that supports the stated population rules. The kit frees the administrator from mixing different capacities or ranks, which can limit total memory or reduce speed. Consult the motherboard manual for the approved DIMM population order before installing. Buyers who need a different capacity, a UDIMM form factor, or non-ECC memory cannot use this kit.

How it compares

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

Price $14,140.99
Pricier than about 90% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (8 × 64 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $27.62 per GB
Pricier than about 77% 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 numberMR38400-924K8
Total capacity512 GB (8 × 64 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 items512 GB 8 × 64 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

How do I install the 8x64GB DDR5 RDIMM kit in my Supermicro H13SRH, and which population rule do people miss?

Populate all eight slots following the motherboard manual's exact DIMM population order; the common mistake is skipping the prescribed sequence, which prevents the full 512GB from being recognised at DDR5-4800.

What maintenance or replacement will the 2Rx4 ECC RDIMMs need over time?

No periodic maintenance is required; ECC corrects single-bit errors on the fly, and the lifetime replacement warranty covers any module that later fails.

What limit appears first when the 512GB kit runs sustained workloads at 1.1V?

The registered buffer and ECC logic keep every slot stable at CL40, so the first limit is the DDR5-4800 speed ceiling defined by the memory controller.

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