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Four green DDR5 RDIMM sticks without heat spreaders in a row

NEMIX RAM

NEMIX RAM 256GB 4x64GB DDR5 6400MHz CL52 4Rx4 ECC Registered RDIMM memory upgrade

SKU CH-SNRP-91GNV

256 GB kit of four 64 GB DDR5 RDIMMs running at 6400 MHz with CL52 latency, 1.1 V registered ECC and 4Rx4 organisation for the Supermicro X14SDV-36CE-SP3F motherboard

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 256GB 4X64GB

  • 256 GB total capacity from four 64 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 buffers signals for full-slot stability
  • 1 V operation matches platform requirements for efficient power draw at full load
  • Validated for Supermicro X14SDV-36CE-SP3F motherboard ensuring correct population and recognition

Server-grade DDR5 ECC RDIMM kit

This 256 GB kit contains four 64 GB registered DDR5 modules rated at 6400 MHz with CL52 latency and 1.10 V operation. It is built for Supermicro X14SDV-36CE-SP3F motherboards that require 288-pin ECC RDIMMs populated in matched sets.

Suited for capacity-bound server workloads

The 4Rx4 registered design lets every slot run fully populated at rated speed while on-die ECC corrects single-bit errors without halting the system. Builders who need unbuffered UDIMMs, SODIMM form factors, or non-ECC memory for desktop platforms should look at something else.

Drops into validated Supermicro configurations

Each 288-pin RDIMM installs directly into the board's DDR5 slots following the manual's population order, with no extra power cables or cooling hardware required. The registered buffer reduces electrical load on the memory controller, freeing headroom for maximum DIMM counts in multi-socket chassis.

How it compares

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

Price $9,221.99
Pricier than about 86% 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 $36.02 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 numberMR51200-944K4
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 rank4Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items256 GB 4 × 64 GB DDR5 6400 MHz PC5-51200 4Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

My server has a Supermicro X14SDV-36CE-SP3F motherboard — what must it already support for this 256 GB kit to work?

The board must accept 288-pin DDR5 RDIMMs, run at 1.1 V, and allow 4Rx4 registered ECC modules so the kit is recognised at full capacity and at DDR5-6400 speed.

Can I mix these 4Rx4 DDR5-6400 RDIMMs with lower-rank registered ECC modules already installed in the same Supermicro board?

Mixing ranks is possible only if the motherboard's memory-population rules allow it; the manual lists approved DIMM order and maximum ranks per channel for full-speed operation.

After installing the four 64 GB modules how can I confirm the kit runs at DDR5-6400 CL52 with ECC active?

Check the BIOS memory information or the OS memory report — both should show 256 GB total, 6400 MT/s data rate, CL52 latency, 1.1 V, and ECC enabled.

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