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Six green DDR5 RDIMM modules with black chips and gold contacts, no heat spreaders

NEMIX RAM

NEMIX RAM DDR5 6400 ECC RDIMM 768GB 6x128GB CL52 1.1V 2Rx4 Supermicro H14SSL-NT memory upgrade

SKU CH-HP4V-6ZFM2

A 768 GB kit of six 128 GB DDR5 ECC registered DIMMs running at 6400 MT/s CL52 1.1 V, validated for the Supermicro H14SSL-NT motherboard

  • Total capacity768 GB (6 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 768 GB total capacity from six 128 GB modules for maximum server density
  • DDR5 6400 speed with CL52 latency delivers rated throughput for memory-intensive workloads
  • Registered ECC architecture corrects single-bit errors and supports full-population stability
  • 1 V operation matches the board's voltage spec for reliable recognition
  • 288-pin RDIMM form factor fits Supermicro H14SSL-NT memory slots exactly

Exact-match DDR5 kit for Supermicro H14SSL-NT

This 768GB kit contains six 128GB DDR5 RDIMMs built to the exact rank, voltage and timing the Supermicro H14SSL-NT memory controller expects. Registered ECC architecture lets every slot run fully populated at rated speed while correcting single-bit errors on the fly. It is not for systems that require UDIMM or SODIMM form factors.

2Rx4 registered ECC at CL52 1.1V

Each module is a 288-pin DDR5 RDIMM rated at 6400 MT/s (PC5-51200) with CAS latency 52 and 1.10V operating voltage. The 2Rx4 organisation and registered buffer match the board's population rules so the full 768GB is recognised without down-clocking. Buyers whose platforms demand a different rank structure or voltage cannot use this kit.

Low-voltage DDR5 thermals

Running at 1.1V keeps power draw modest even with all six slots populated, so standard server airflow handles thermals without extra cooling. No heat spreaders are fitted, relying on the chassis directed airflow design. Systems with restricted ventilation or passive-only cooling should verify thermal headroom before installing a fully populated configuration.

How it compares

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

Price $25,268.99
Pricier than about 92% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (6 × 128 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $32.90 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR51200-724K6
Total capacity768 GB (6 × 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 items768 GB 6 × 128 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Will the 768 GB capacity run at the full 6400 MT/s on my Supermicro H14SSL-NT?

The kit is spec-matched to the H14SSL-NT memory controller, so all six 128 GB modules operate at DDR5-6400 with CL52 timings at 1.1 V when installed in the correct population order.

Does the PC5-51200 rating limit the actual throughput on this board?

PC5-51200 is the peak transfer rate for DDR5-6400; the registered ECC design lets every slot run at that bandwidth without downclocking when fully populated.

Will these 288-pin RDIMMs physically fit the H14SSL-NT memory slots?

Yes — the modules use the standard 288-pin RDIMM form factor required by the H14SSL-NT, and the kit contains six sticks to fill the supported channels.

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