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Four green DDR5 RDIMM sticks without heat spreaders, 288 pins each

NEMIX RAM

NEMIX RAM DDR5 256GB 4x64GB 6400MHz CL52 ECC RDIMM Supermicro H13DSG-OM

SKU CH-GXB7-7XEDP

256 GB DDR5 kit with four 64 GB registered ECC RDIMMs at 6400 MHz, CL52 and 1.1 V, built for the Supermicro H13DSG-OM 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
  • 256 GB capacity in a matched four-module kit enables dense server workloads
  • DDR5 6400 speed with CL52 latency delivers rated throughput for the H13DSG-OM
  • Registered ECC architecture corrects single-bit errors and supports full-slot population
  • 1 V operation matches the motherboard's memory-controller specification exactly
  • 288-pin RDIMM form factor fits the Supermicro board's required slot type

256GB DDR5 ECC RDIMM kit for Supermicro H13DSG-OM

This 256GB kit contains four 64GB DDR5 6400MHz Registered ECC modules built to the exact rank, voltage and timing the Supermicro H13DSG-OM memory controller expects. It is intended for server administrators who need the full 256GB capacity recognised at rated speed without manual tuning.

Installation and common issues

The modules use the standard 288-pin RDIMM form factor required by this board, not UDIMM or SODIMM, so they seat in the regular DIMM slots. The main risk is ignoring the motherboard manual's population order; incorrect slot filling can prevent the system from posting or limit the usable capacity.

Registered ECC with 2Rx4 organisation

The combination of Registered buffering and 2Rx4 rank organisation lets the memory controller drive all four slots at full 6400MHz CL52 while ECC corrects single-bit errors on the fly. Systems that require UDIMMs, non-ECC memory, or a different rank structure will not support this kit.

How it compares

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

Price $8,649.99
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 $33.79 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

How can I verify the 256GB kit is running at the rated 6400MHz CL52 after installation?

Check the BIOS memory information screen or a tool such as dmidecode to confirm each module shows DDR5-6400, 1.10V, CL52 and 2Rx4 registered ECC operation.

What is included in the package and is anything else required?

The box contains the 256GB kit as four 64GB DDR5 288-pin ECC registered RDIMMs; no additional parts are needed for installation on the Supermicro H13DSG-OM.

Which capacity option should I choose for the Supermicro H13DSG-OM?

This 256GB kit (4 × 64GB) matches the board's DDR5 RDIMM population rules and delivers the full 256GB at the specified 6400MHz CL52 1.10V 2Rx4 configuration.

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