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Two green DDR5 RDIMM sticks without heat spreaders

NEMIX RAM

NEMIX RAM 128GB (2x64GB) DDR5 6400 CL52 1.1V 4Rx4 ECC RDIMM for Supermicro X14DBG-LC+ memory upgrade

SKU CH-B9N8-KH1M1

128 GB DDR5 6400 CL52 ECC registered RDIMM kit validated for Supermicro X14DBG-LC+ motherboards

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB 2X64GB

Show 3 more
  • Exact DDR5-6400 CL52 1.10V spec match for full-speed recognition
  • 128GB (2×64GB) 4Rx4 registered ECC RDIMM for maximum density
  • Verified fitment for Supermicro X14DBG-LC+ 288-pin RDIMM slots
  • Registered architecture offloads controller for stable full-population operation
  • ECC corrects single-bit errors on the fly preventing data corruption

Exact 128GB DDR5-6400 kit for Supermicro X14DBG-LC+

This 128GB kit contains two 64GB DDR5 RDIMMs rated at 6400 MT/s with CL52 latency and 1.10V operation. The 4Rx4 registered ECC design matches the memory controller requirements of the Supermicro X14DBG-LC+ motherboard so the system recognises the full capacity at rated speed. It is intended for server administrators who need a validated capacity upgrade for this specific platform.

Registered ECC architecture offloads the memory

Registered buffering reduces electrical load on the memory controller when all slots are populated, allowing stable operation at the specified 1.10V. On-die ECC detects and corrects single-bit errors in real time, preventing silent data corruption and unplanned reboots in production workloads. The modules run without heat spreaders, relying on chassis airflow for thermal management.

288-pin RDIMM form factor fits the board's DIMM

The kit uses the 288-pin RDIMM form factor required by the Supermicro X14DBG-LC+ and will not fit UDIMM or SODIMM slots. Population order and maximum supported capacity per channel are defined in the motherboard manual and must be followed for correct operation. No additional cables, brackets or software licences are needed for installation.

How it compares

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

Price $4,354.99
Pricier than about 78% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $34.02 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 numberMR51200-944K2
Total capacity128 GB (2 × 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 items128 GB 2 × 64 GB DDR5 6400 MHz PC5-51200 4Rx4 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

How do I install the 288-pin DDR5 RDIMM modules on the Supermicro X14DBG-LC+ and which slot order is critical?

Power down the server, open the chassis, and insert each 64GB module into the DIMM slots specified in the Supermicro X14DBG-LC+ manual for a 2-DIMM population; the registered RDIMM keying only fits one way, so press firmly until the ejector tabs click.

What maintenance or replacement will the 128GB DDR5 6400 kit need over its service life?

No scheduled maintenance is required; the modules have no heat spreader and operate at 1.1V, so keep server airflow clean and rely on ECC to correct single-bit errors — if a module ever fails, the lifetime replacement warranty covers a swap.

What is the first limit that appears when the 4Rx4 DDR5 6400 CL52 kit runs sustained workloads?

The CAS latency of CL52 at 6400 MT/s sets the timing boundary; under continuous heavy load the memory controller will throttle to maintain stability at the rated 1.10V before any thermal limit is reached.

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