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Two green DDR5 RDIMM sticks without heat spreaders, 288 pins, sold as a 256GB kit

NEMIX RAM

NEMIX RAM 256GB (2x128GB) DDR5 6400 CL52 1.1V 4Rx4 ECC Registered RDIMM memory upgrade

SKU CH-Y2J4-HPFKE

256GB DDR5-6400 ECC Registered RDIMM kit (2×128GB) validated for Supermicro X14SRG-TF 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

Size 256GB 2X128GB

Show 4 more
  • 256 GB capacity from two 128 GB modules expands server memory headroom
  • DDR5 6400 speed with CL52 latency delivers rated throughput for demanding workloads
  • Registered ECC architecture offloads the controller and corrects single-bit errors automatically
  • 10 V operation at 4Rx4 rank matches the memory controller's exact requirements
  • 288-pin RDIMM form factor fits Supermicro X14SRG-TF motherboard slots precisely

Exact-match kit for Supermicro X14SRG-TF

This 256 GB DDR5 kit contains two 128 GB registered ECC RDIMMs built to the board's precise rank, voltage and timing requirements. It is intended for administrators upgrading that specific Supermicro motherboard with memory the controller will recognise at full capacity and rated speed.

Registered 4Rx4 ECC at 1.1 V

The modules run at DDR5 6400 (PC5-51200) with CL52 latency and a 1.10 V operating voltage. Registered architecture and 4Rx4 organisation let the memory controller drive every slot fully populated while on-die ECC corrects single-bit errors before they affect production workloads.

256 GB headroom for dense virtualisation

Two 128 GB DIMMs fill two slots and deliver the maximum capacity this kit provides, supporting large VM counts and in-memory databases. Builders needing more than 256 GB or a different form factor such as UDIMM or SODIMM must look elsewhere.

How it compares

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

Price $9,552.99
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 $37.32 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

What does the 6400 MT/s speed mean once this kit is installed in a Supermicro X14SRG-TF?

The modules run at DDR5-6400 (PC5-51200) with CL52 latency at 1.1 V, delivering the exact data rate the motherboard's memory controller expects for full-capacity operation.

How does the 288-pin RDIMM interface limit or enable use on this board?

The 288-pin Registered DIMM form factor is required by the X14SRG-TF; it will not accept UDIMM or SODIMM modules, and the registered design allows every slot to be populated at 128 GB per DIMM.

What physical clearance and slot layout does this 2 x 128 GB kit need?

Each 288-pin RDIMM fits a standard DDR5 server DIMM slot with no heat spreader, so verify the motherboard's population order in the manual before installing both modules.

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