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Two green DDR5 RDIMM sticks without heat spreaders, 288-pin, 256GB kit

NEMIX RAM

NEMIX RAM 256GB DDR5 6400 ECC RDIMM Kit 2x128GB CL52 1.1V Supermicro H13DSG-OM

SKU CH-JB2W-5153M

256 GB DDR5 6400 ECC registered RDIMM kit, two 128 GB modules at CL52 and 1.1 V, validated for Supermicro H13DSG-OM motherboards

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 256 GB total capacity from two 128 GB modules
  • DDR5 6400 speed with CL52 latency at 1.1 V
  • Registered ECC design offloads the controller and corrects single-bit errors
  • 288-pin RDIMM form factor built for Supermicro H13DSG-OM motherboards
  • 2Rx4 dual-rank organization enables full-population stability

Exact-Match DDR5-6400 Server Kit

This NEMIX RAM kit delivers 256GB as two 128GB DDR5 RDIMMs rated at 6400MHz PC5-51200 with CL52 latency and 1.10V operation. Registered ECC architecture with 2Rx4 organisation is built for the Supermicro H13DSG-OM motherboard.

Suited for Full-Population Server Builds

Ideal for administrators populating every slot on the H13DSG-OM with registered ECC modules that the memory controller recognises at rated speed. Not suited for systems requiring UDIMM or SODIMM form factors, non-ECC memory, or lower-density DIMMs not validated for this board.

Fits H13DSG-OM Memory Rules

The 288-pin RDIMM form factor matches the motherboard's registered DIMM requirement and population guidelines. Registered buffering reduces electrical load on the controller when all slots are filled, while ECC corrects single-bit errors to protect data integrity.

How it compares

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

Price $8,911.99
Pricier than about 86% 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 $34.81 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 numberMR51200-724K2
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 rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items256 GB 2 × 128 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Will this 256GB DDR5 6400 CL52 2Rx4 kit install correctly on my Supermicro H13DSG-OM motherboard?

Yes, the kit is verified for the Supermicro H13DSG-OM. It uses the 288-pin RDIMM form factor with registered architecture and 1.1V operation that the board requires.

Can I keep my existing DDR5 RDIMMs and add this 128GB per module kit to fill the remaining slots?

Only if the existing modules match DDR5 6400, CL52, 2Rx4, 1.1V registered specs. Mixed ranks or timings will force the slowest common settings or prevent boot.

How do I confirm the full 256GB is running at DDR5 6400 with ECC active after installation?

Enter BIOS to verify total capacity shows 256GB, speed reads 6400 MT/s, and ECC status is enabled. Run a memory diagnostic to validate stability.

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