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Two green DDR5 RDIMM modules without heat spreaders, 288-pin, 128GB each

NEMIX RAM

NEMIX RAM 256GB 2x128GB DDR5 6400MHz CL52 4Rx4 1.1V 288-Pin ECC Registered RDIMM Kit memory upgrade

SKU CH-D03Z-RWS8E

256 GB DDR5-6400 ECC Registered RDIMM kit (2 × 128 GB, CL52, 1.1 V, 4Rx4) validated for the Supermicro X14DBG-LC+ motherboard

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 256GB 2X128GB

Show 3 more
  • 256 GB total capacity in a matched 2 x 128 GB kit
  • DDR5-6400 speed with CL52 latency for server workloads
  • Registered ECC design corrects single-bit errors and buffers signal loads
  • 1 V operation at 4Rx4 rank for full-slot population
  • Validated for Supermicro X14DBG-LC+ motherboard with 288-pin RDIMM form factor

Exact-Match Server Memory Kit

This 256 GB kit contains two 128 GB DDR5 RDIMMs rated at 6400 MHz with CL52 latency and 1.1 V operation. It is built for the Supermicro X14DBG-LC+ motherboard and uses the registered 288-pin form factor that board requires.

Registered ECC Stability

Registered architecture buffers the command and address signals so all slots can be fully populated at rated capacity. On-die ECC detects and corrects single-bit errors in real time, protecting data integrity in production workloads. The modules ship without heat spreaders, relying on chassis airflow for cooling.

Pre-Installation Checklist

Confirm your system manual for supported capacities, approved population order, and any BIOS version requirements before ordering. Verify that your platform accepts 4Rx4 registered DDR5 RDIMMs and that the 288-pin keying matches your DIMM slots.

How it compares

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

Price $8,286.99
Pricier than about 85% 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 $32.37 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 numberMR51200-744K2
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 rank4Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items256 GB 2 × 128 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

Does the DDR5 6400 PC5-51200 kit run at its rated speed on the Supermicro X14DBG-LC+?

The kit is an exact-match upgrade for the Supermicro X14DBG-LC+ motherboard and is spec-matched to the board's memory-population rules so it is recognized at full capacity and runs at its rated DDR5 6400 speed.

What physical slot does this 288-pin RDIMM need on the motherboard?

The modules use the 288-pin Registered RDIMM form factor required by the Supermicro X14DBG-LC+ motherboard; they are not compatible with UDIMM or SODIMM slots.

How should the two 128GB 4Rx4 modules be installed, and what step is often missed?

Install both modules in the DIMM slots specified by the Supermicro X14DBG-LC+ manual for a two-DIMM population; the step often missed is checking the manual for the approved population order before seating the modules.

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