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Four green DDR5 RDIMM modules with black chips and gold contacts, no heat spreaders

NEMIX RAM

NEMIX RAM DDR5 512GB (4 x 128GB) 6400MHz CL52 2Rx4 1.1V ECC Registered RDIMM Supermicro H14SHM memory upgrade

SKU CH-EDZX-4KH5M

512GB DDR5 6400MHz registered ECC RDIMM kit with 2Rx4 rank and CL52 latency for Supermicro H14SHM servers

  • 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 for maximum server density
  • DDR5 6400 speed with CL52 latency delivers rated throughput on Supermicro H14SHM
  • Registered ECC RDIMM architecture offloads the controller and corrects single-bit errors automatically
  • 10 V operation at 2Rx4 rank matches the motherboard's memory-controller expectations exactly
  • 288-pin DDR5 RDIMM form factor fits the H14SHM slots without adapters or mismatches

Server memory kit for Supermicro H14SHM

This NEMIX RAM kit delivers 512 GB of DDR5 capacity in four 128 GB registered DIMMs. It is built for the Supermicro H14SHM motherboard and targets administrators who need maximum supported memory in a single validated package.

Registered ECC with 2Rx4 organisation

The modules run at 6400 MT/s with CL52 latency at 1.10 V. Registered buffering and 2Rx4 rank layout let the board run all slots fully populated while on-die ECC corrects single-bit errors before they reach the OS.

Suits fully populated H14SHM builds.

Buyers who need registered ECC RDIMMs matched to the H14SHM population rules will install this kit and boot at rated speed. Builders using desktop chipsets, laptops, or motherboards that only accept unbuffered UDIMMs must choose a different memory type.

How it compares

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

Price $17,224.99
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 $33.64 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

What does the 6400MHz rating deliver when installed in a Supermicro H14SHM server?

The kit runs at DDR5 6400 (PC5 51200) with CL52 timing and 1.1V, so each of the four 128GB modules operates at its rated speed when the motherboard populates all slots per its memory-population rules.

How does the 288-pin RDIMM interface affect usable bandwidth on this board?

The 288-pin Registered DDR5 form factor is exactly what the H14SHM requires; the registered architecture lets the memory controller drive all four slots at full 6400MHz without signal degradation.

What physical clearance do the four 128GB modules need inside the chassis?

Each module is a standard-height 288-pin RDIMM without a heat spreader, so they fit the H14SHM's DIMM slots side-by-side using the board's native latch spacing.

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