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Four green DDR5 RDIMM modules without heat spreaders, 288 pins each

NEMIX RAM

NEMIX RAM 256GB (4x64GB) DDR5 4800 CL40 ECC RDIMM Supermicro H13SVW-NT-OS2 memory upgrade

SKU CH-TFCJ-QQZAY

A 256 GB DDR5 server memory kit with four 64 GB registered ECC modules running at 4800 MT/s CL40 and 1.1 V, built for the Supermicro H13SVW-NT-OS2 motherboard

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 256GB 4X64GB

Show 12 more
  • 256 GB total capacity from four 64 GB modules for high-density server workloads
  • DDR5 4800 speed with CL40 latency delivers rated bandwidth for the platform
  • Registered ECC architecture with 2Rx4 organisation corrects single-bit errors and stabilises full population
  • 10 V operation matches the motherboard's voltage requirement exactly
  • 288-pin RDIMM form factor fits the Supermicro H13SVW-NT-OS2 memory slots precisely

256 GB DDR5-4800 ECC RDIMM kit for Supermicro

This kit delivers 256 GB (4 x 64 GB) of DDR5-4800 (PC5-38400) registered ECC memory. It matches the exact rank, voltage, and timing the motherboard's memory controller expects so every slot is recognized at full capacity and runs at its rated speed. It is built for servers and workstations that require registered DIMMs with error correction.

Straightforward 288-pin RDIMM installation

Each module is a standard 288-pin registered DIMM that seats in the board's DDR5 slots. The motherboard manual defines the approved DIMM population order; following that sequence avoids a no-post condition when all four slots are filled. No heat spreader is fitted, so clearance around the CPU cooler is not affected.

Verify supported capacity

Consult the Supermicro H13SVW-NT-OS2 manual for the maximum supported capacity per channel and the required installation sequence. The board requires registered ECC RDIMMs at 1.1 V; UDIMM or SODIMM modules will not work. Confirm your system's memory-population rules match this 4 x 64 GB configuration.

How it compares

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

Price $6,465.99
Pricier than about 82% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $25.26 per GB
Pricier than about 70% 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 numberMR38400-924K4
Total capacity256 GB (4 × 64 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items256 GB 4 × 64 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

How can I confirm the kit is running at DDR5-4800 with CL40 after installation?

Enter the BIOS and verify the memory speed shows 4800 MT/s and CAS latency reads 40; the registered ECC design also allows the OS to report corrected-error counts as further proof of operation.

What is included in the package and what must I source separately?

The box contains the 256 GB kit as four 64 GB DDR5 288-pin RDIMM modules; no heat spreaders, cables, or tools are supplied, so have a compatible Supermicro H13SVW-NT-OS2 motherboard and anti-static wrist strap ready.

Which capacity version should I choose for a fully populated four-slot server?

Select this 256 GB (4 × 64 GB) 2Rx4 Registered ECC kit when your board's population rules call for four dual-rank modules at 1.1 V to reach maximum supported capacity.

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