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Four green DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 512GB (4×128GB) DDR5 6400 CL52 4Rx4 ECC RDIMM Supermicro X14SDW-36C-SP9F memory upgrade

SKU CH-SWMQ-AYEF8

A 512GB DDR5-6400 ECC RDIMM kit (4×128GB, 4Rx4, CL52, 1.1V) validated for the Supermicro X14SDW-36C-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 for maximum server density
  • DDR5 6400 speed with CL52 latency delivers rated bandwidth on this platform
  • Registered ECC architecture offloads the memory controller and corrects single-bit errors
  • 1 V operation at 4Rx4 rank matches the board's electrical requirements exactly
  • 288-pin RDIMM form factor fits the Supermicro X14SDW-36C-SP9F memory slots

Server Memory Kit

This NEMIX RAM kit provides 512GB of DDR5 capacity across four 128GB modules. It is built for the Supermicro X14SDW-36C-SP9F motherboard and targets servers that need maximum registered ECC memory at the board's rated speed.

Compatibility Check

Verify that your motherboard manual approves a four-module population at the 4Rx4 rank and 1.1V operating voltage. Confirm the system BIOS supports the full 512GB capacity and that the 288-pin RDIMM form factor matches every slot you intend to fill.

Upgrade Path

This kit replaces smaller or slower DDR5 RDIMM sets when the workload demands the full 512GB capacity at 6400 MT/s with CL52 timing. The jump is worthwhile when registered ECC stability and maximum density are required for the qualified Supermicro platform.

How it compares

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

Price $17,846.99
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 $34.86 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

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Questions about this item

What comes in the 512GB kit and do I need anything else to install it?

The kit includes four 128GB DDR5 6400 CL52 4Rx4 ECC registered RDIMMs. No extra components are required; the modules plug directly into the 288-pin DIMM slots on the Supermicro X14SDW-36C-SP9F motherboard.

Why is this kit sold as 4Rx4 instead of a lower rank, and does it matter for the X14SDW-36C-SP9F?

The 4Rx4 organisation matches the memory controller expectations of the Supermicro X14SDW-36C-SP9F so all four slots can run fully populated at the rated DDR5 6400 speed.

Will the CL52 latency at DDR5 6400 actually be reached once the modules are seated in the server?

Yes, the exact-match voltage of 1.1V, registered buffering and ECC are spec-matched to the board, so the memory controller recognises the kit at full 512GB capacity and operates it at DDR5 6400 CL52.

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