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

NEMIX RAM

NEMIX RAM DDR5 6400 256GB 4x64GB CL52 1.1V 2Rx4 ECC RDIMM Supermicro H14DST-F memory upgrade

SKU CH-E1SN-5QP35

A 256GB DDR5-6400 ECC registered RDIMM kit built to the exact rank, voltage and timing the Supermicro H14DST-F motherboard expects for full-capacity operation

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 256 GB total capacity from four matched 64 GB modules for full server population
  • DDR5 6400 speed with CL52 latency runs at the board's rated frequency
  • 1 V registered ECC design reduces controller load and corrects single-bit errors
  • 2Rx4 288-pin RDIMM form factor matches the Supermicro H14DST-F memory slots exactly
  • Major OEM Samsung, Micron or Hynix chips deliver enterprise-grade stability

Exact-match server upgrade

This 256GB kit delivers four 64GB DDR5 RDIMMs rated at 6400MHz with CL52 latency and 1.1V operation. It is built for the Supermicro H14DST-F motherboard and uses registered ECC modules that the board’s memory controller expects.

Registered ECC 2Rx4 configuration

The 2Rx4 registered ECC design offloads the memory controller so all slots can run fully populated at rated speed while correcting single-bit errors on the fly. This rank, voltage, and timing combination is what decides whether the system recognises the full capacity and remains stable.

Four-module kit only

The package contains exactly four 64GB RDIMMs with no heat spreaders, cables, or software included. Builders needing a different capacity, a UDIMM form factor, or non-ECC memory must select another kit.

How it compares

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

Price $8,178.99
Pricier than about 85% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $31.95 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 numberMR51200-924K4
Total capacity256 GB (4 × 64 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 4 × 64 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Will the DDR5-6400 speed run at 6400 MT/s in my Supermicro H14DST-F?

The kit is spec-matched to the H14DST-F memory controller, so all four slots populate at the rated 6400 MT/s with CL52 timing and 1.10 V.

Does the 288-pin RDIMM form factor fit the H14DST-F DIMM slots?

Yes, the board requires 288-pin registered RDIMMs; this kit uses exactly that form factor and is verified for the H14DST-F population rules.

What physical clearance do the modules need inside the chassis?

Modules have no heat spreader, so they fit standard server DIMM sockets without extra height clearance.

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