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Four green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM DDR5 4800 ECC Registered RDIMM 512GB (4×128GB) CL40 1.1V 2Rx4 288-pin Supermicro H14SSL-NT

SKU CH-MKZ7-NGX1H

512 GB DDR5-4800 registered ECC kit in four 128 GB modules at CL40 and 1.1 V for Supermicro H14SSL-NT

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 512GB 4X128GB

Show 24 more
  • 512 GB total capacity from four 128 GB modules
  • DDR5 4800 speed with CL40 latency for rated server performance
  • Registered ECC design corrects single-bit errors on the fly
  • 1 V operation matches the board's memory controller spec
  • 288-pin RDIMM form factor verified for Supermicro H14SSL-NT

512GB DDR5-4800 ECC RDIMM kit

This NEMIX RAM kit provides 512GB across four 128GB DDR5-4800 Registered ECC RDIMMs. The modules run at 1.1V with CL40 timing and a 2Rx4 rank structure. They are built as an exact-match upgrade for the Supermicro H14SSL-NT motherboard. The 288-pin form factor fits the board's DDR5 RDIMM slots.

Suited for fully populating H14SSL-NT DDR5 channels

This kit suits administrators who need maximum registered ECC capacity on the H14SSL-NT platform. It is not for systems that accept only UDIMM or SODIMM modules. It is not for boards limited to lower densities or speeds. It is not for workloads requiring unbuffered memory.

DDR5 4800 Registered 2Rx4 specification

The DDR5 4800 (PC5-38400) Registered 2Rx4 specification determines compatibility. The memory controller must support this exact speed, rank, and registered architecture. Verify the motherboard manual for approved population rules before installation.

How it compares

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

Price $16,458.99
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 $32.15 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 numberMR38400-724K4
Total capacity512 GB (4 × 128 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 items512 GB 4 × 128 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

What motherboard must I already have for this 4×128 GB DDR5 4800 kit to be recognised at full capacity and rated speed?

The kit is validated for the Supermicro H14SSL-NT motherboard; its memory controller expects the exact 2Rx4 registered ECC configuration, 1.10 V voltage and CL40 timing supplied by these modules.

Will the four 2Rx4 registered DIMMs in this kit run alongside any older DDR5 RDIMMs I keep in the same server?

Mixing ranks, speeds or voltages can prevent full-speed operation; the board’s population rules should be checked and all slots ideally filled with identical 4800 MT/s 2Rx4 registered modules.

How can I confirm the 512 GB kit is operating at DDR5 4800 with ECC active after installation?

Enter the BIOS or use a tool such as ipmitool to verify the memory runs at 4800 MT/s, shows CL40 latency, reports 512 GB total and indicates ECC corrected errors are being logged.

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