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Two green DDR5 RDIMM sticks without heat spreaders, 288-pin, 128GB kit

NEMIX RAM

NEMIX RAM DDR5 128GB (2x64GB) 4800MHz ECC Registered RDIMM CL40 1.1V 2Rx4 Supermicro H14SHM memory upgrade

SKU CH-8N0H-5A0Q3

A 128 GB dual-rank DDR5 registered ECC kit running at 4800 MHz with CL40 latency and 1.1 V operation, validated for Supermicro H14SHM motherboards

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB 2X64GB

Show 24 more
  • 128 GB total capacity delivered in a matched 2 x 64 GB kit
  • DDR5 4800 MT/s (PC5-38400) runs at rated speed on the Supermicro H14SHM
  • Registered ECC RDIMM with 2Rx4 organisation corrects single-bit errors and keeps every slot stable fully populated
  • CL40 latency at 1.1 V provides efficient operation for enterprise workloads
  • 288-pin DDR5 RDIMM form factor matches the board's exact slot and population requirements

Exact-match server kit

This 128GB kit contains two 64GB DDR5 registered ECC RDIMMs built for the Supermicro H14SHM motherboard. The modules run at 4800MHz with CL40 latency at 1.1V and use a 2Rx4 rank layout that matches the board's memory controller expectations. They install as a matched pair so the system recognises the full capacity at rated speed.

Registered ECC RDIMM form factor

The 288-pin RDIMM design is the only module type the H14SHM accepts; UDIMM or SODIMM variants will not fit or function. Registered buffering reduces electrical load on the memory controller when all slots are populated, while on-die ECC corrects single-bit errors before they affect data integrity. This combination is required for stable operation in the target platform.

Standard-voltage DDR5 thermals

Operating at 1.1V, the modules draw minimal power and generate low heat under typical server workloads. No heat spreader is fitted, so airflow across the DIMM slots provided by the chassis fans is sufficient for cooling. Acoustic impact is negligible because the memory itself has no moving parts and does not increase fan speed in a properly ventilated enclosure.

How it compares

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

Price $3,621.99
Pricier than about 75% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $28.30 per GB
Pricier than about 80% 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 numberMR38400-924K2
Total capacity128 GB (2 × 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 items128 GB 2 × 64 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

What does the 4800MHz DDR5 rating deliver once the kit is installed in a Supermicro H14SHM?

The two 64GB modules run at DDR5-4800 (PC5-38400) with CL40 latency at 1.1V, giving the memory controller the exact speed and timing it expects for full 128GB capacity.

How does the registered ECC RDIMM interface affect real-world operation on this board?

Registered buffering offloads the memory controller so every slot runs fully populated at rated speed, while ECC corrects single-bit errors on the fly to prevent silent data corruption.

What physical slot and clearance does the 288-pin RDIMM need on the H14SHM?

The kit uses standard 288-pin DDR5 RDIMM form factor with no heat spreader, so it fits the board's RDIMM slots directly and follows the motherboard's population order rules.

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