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Two green DDR5 RDIMM modules without heat spreaders, 288-pin, 256GB kit

NEMIX RAM

NEMIX RAM 256GB 2x128GB DDR5 6400 CL52 1.1V ECC Registered RDIMM Kit memory upgrade

SKU CH-E3Q4-RQTT4

A 256GB DDR5 6400 ECC registered RDIMM kit built to the exact rank, voltage and timing the Supermicro H14SST-GE expects

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 256 GB kit lets the Supermicro H14SST-GE run at full capacity
  • DDR5-6400 CL52 timing matches the board's memory controller for rated speed
  • Registered ECC architecture offloads the controller and corrects single-bit errors on the fly
  • 10 V operation at 2Rx4 rank aligns with the motherboard's population rules
  • Lifetime replacement warranty with US-based technical support backs the upgrade

Capacity and Compatibility

This 256GB kit contains two 128GB DDR5 RDIMMs built for servers that require Registered ECC memory. It is designed for the Supermicro H14SST-GE motherboard and matches the board's population rules.

Registered ECC Architecture

The modules run at DDR5 6400 with CL52 latency at 1.10V using a 2Rx4 organization. Registered buffering reduces electrical load on the memory controller so every slot can be fully populated at rated speed while ECC corrects single-bit errors.

Server Build Integration

The 288-pin RDIMM form factor fits only boards wired for Registered DDR5, not UDIMM or SODIMM slots. Verify your system manual for approved capacities and DIMM order before installation.

How it compares

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

Price $9,242.99
Pricier than about 86% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $36.11 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 numberMR51200-724K2
Total capacity256 GB (2 × 128 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 6400 (PC5 51200)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items256 GB 2 × 128 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

What does the 6400 MT/s rating mean once the kit is installed in the Supermicro H14SST-GE?

The modules run at DDR5 6400 (PC5 51200) with CL52 latency at 1.10 V, so the memory controller sees the rated speed and timings without manual tuning.

How does the 288-pin RDIMM interface and registered design affect maximum capacity on this board?

The 288-pin Registered DIMM form factor is what the H14SST-GE requires; the registered architecture lets the board run every slot fully populated at 256 GB total without overloading the memory controller.

What physical clearance do the 128 GB modules need inside the server chassis?

Each 288-pin RDIMM has no heat spreader, so standard DIMM-slot height clearance is sufficient; verify the motherboard manual for population order before installing the 2x128 GB kit.

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