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Four green DDR5 RDIMM sticks with black chips, no heat spreaders, 288 pins each

NEMIX RAM

NEMIX RAM DDR5 6400 512GB (4x128GB) CL52 1.1V ECC RDIMM Supermicro X14SDW-40C-SP9F memory upgrade

SKU CH-S0V2-SRWZ8

A 512 GB DDR5-6400 ECC registered kit of four 128 GB modules at CL52 and 1.1 V, validated for the Supermicro X14SDW-40C-SP9F motherboard

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 512GB 4X128GB

  • 512 GB total capacity from four 128 GB modules
  • DDR5 6400 speed with CL52 latency for rated performance
  • Registered ECC design corrects single-bit errors on the fly
  • 1 V operation matches server memory controller expectations
  • Verified fit for Supermicro X14SDW-40C-SP9F motherboard

Exact-match DDR5 512GB kit for Supermicro

This 512GB kit contains four 128GB DDR5 6400 RDIMMs rated at CL52 and 1.1V. Registered ECC architecture with 4Rx4 organisation matches the memory controller expectations of the Supermicro X14SDW-40C-SP9F motherboard. Modules are 288-pin DDR5 RDIMMs without heat spreaders.

Verify motherboard population rules before ordering

Consult the system or motherboard manual for supported capacities, approved DIMM population order and installation steps. The board requires 288-pin Registered DDR5 RDIMMs; UDIMM or SODIMM modules will not fit. Ensure the platform can address 4Rx4 registered DIMMs at the full 512GB capacity.

Suits administrators expanding a validated

Ideal for operators who need the precise rank, voltage and timing combination the X14SDW-40C-SP9F expects for full-speed operation. Not for builders using consumer boards that accept only unbuffered UDIMMs, nor for systems limited to lower maximum memory capacities or different DDR generations.

How it compares

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

Price $16,971.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $33.15 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 numberMR51200-744K4
Total capacity512 GB (4 × 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 items512 GB 4 × 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 comes in the NEMIX RAM 512GB kit and do I need anything else to install it?

The box contains four 128GB DDR5 6400MHz PC5-51200 4Rx4 1.1V CL52 288-pin ECC Registered RDIMM modules. No extra parts are required for installation in a compatible Supermicro X14SDW-40C-SP9F motherboard.

How do I decide between the available capacities or versions for this Supermicro board?

This part number MR51200-744K4 is a single 512GB kit built as 4x128GB. Choose it when your server needs the full 512GB populated across four slots at DDR5-6400 with registered ECC.

What does the DDR5-6400 CL52 1.1V rating mean once the modules are running in my X14SDW-40C-SP9F?

The memory controller will recognise each 128GB 4Rx4 RDIMM at its rated 6400MT/s, operate at the specified 1.1V, and apply CL52 latency, delivering the full 512GB capacity with registered ECC stability.

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