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Four green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 512GB (4 x 128GB) DDR5 6400 CL52 1.1V ECC Registered RDIMM memory upgrade

SKU CH-XDMJ-G9PJE

512 GB server memory kit with four 128 GB DDR5 6400 CL52 1.1 V ECC Registered RDIMMs validated for Supermicro H13SVW-N motherboards

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 512 GB total capacity from four 128 GB modules
  • DDR5 6400 speed with CL52 latency for rated performance
  • Registered ECC design prevents silent data corruption
  • 1 V operation matches server memory controller requirements
  • Verified fit for Supermicro H13SVW-N motherboard

Targeted Server Upgrade

This 512GB kit delivers four 128GB DDR5 6400 Registered ECC RDIMMs built to the exact rank, voltage and timing the Supermicro H13SVW-N memory controller expects. It is intended for administrators who need maximum capacity in every slot without mixing modules.

Thermals and Power

Each module operates at 1.1V with no heat spreader, relying on the server's directed airflow for cooling. Registered buffering reduces electrical load on the memory controller, keeping power draw predictable even with all four slots populated.

Registered ECC Requirement

The motherboard requires 288-pin Registered (RDIMM) DDR5 with ECC; UDIMM or non-ECC modules will not function. Verify your system manual for supported population rules and maximum capacity per channel before ordering.

How it compares

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

Price $16,449.99
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 $32.13 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 numberMR51200-724K4
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 rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items512 GB 4 × 128 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

How do I install the 288-pin RDIMM modules in the Supermicro H13SVW-N, and what step is often missed?

Power down and unplug the server, then open the chassis. Insert each 128 GB module into the slots specified by the motherboard manual, pressing until the latches click. The step people skip is verifying the exact population order for a 4 x 128 GB configuration.

What maintenance or replacement will the 512 GB DDR5 ECC RDIMM kit need over its service life?

No scheduled maintenance is required for the modules themselves. Keep the server's air filters clean and firmware current so the registered ECC memory operates within its 1.10 V spec. Replace a module only if the system logs uncorrectable ECC errors.

What limit appears first when the 6400 MHz CL52 kit runs fully populated under sustained load?

The registered 2Rx4 architecture is designed to let all four slots run at the rated 6400 MT/s without downclocking. The first practical limit is the server's thermal envelope; if chassis airflow is insufficient, the memory controller may throttle speed to protect stability.

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