We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Twelve green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM DDR5 4800 1.5TB 12x128GB ECC RDIMM Supermicro H14DSH

SKU CH-4HX7-CJ98Y

A 1.5 TB kit of twelve 128 GB DDR5 4800 registered ECC RDIMMs at 1.1 V CL40, built for full-capacity operation on Supermicro H14DSH motherboards

  • Total capacity1.5 TB (12 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 1.5TB 12X128GB

Show 30 more
  • 5TB capacity from twelve 128GB modules
  • DDR5 4800 speed with CL40 latency at 1.1V
  • ECC and registered design prevents data errors
  • 288-pin RDIMM form factor fits Supermicro H14DSH
  • Major OEM chips from Samsung, Micron, Hynix

Capacity and fit

This kit delivers 1.5TB of DDR5 memory across twelve 128GB modules, built specifically for the Supermicro H14DSH motherboard. The 288-pin RDIMM form factor and 2Rx4 registered ECC design match the board's memory controller requirements exactly, so the system recognises the full capacity at the rated 4800MHz speed.

Registered DDR5 limits

Registered DDR5 at 4800MHz with CL40 latency and 1.10V operation offloads electrical load from the memory controller, allowing all twelve slots to run fully populated without signal degradation. ECC corrects single-bit errors on the fly, preventing silent data corruption in production workloads, but the modules must be installed in the precise population order the motherboard manual specifies.

Build and daily implications

The modules use major OEM Samsung, Micron or Hynix chips without heat spreaders, relying on server chassis airflow for cooling. The 288-pin registered connector ensures a secure mechanical seat in each DIMM slot, while the matched rank, voltage and timing profile means the firmware initialises the kit at full speed without manual tuning.

How it compares

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

Price $48,353.99
Pricier than about 96% of the 21,161 comparable items (median $397.99).
Total capacity 1.5 TB (12 × 128 GB)
Higher than about 97% of the 20,941 comparable items (median 32 GB).
Price per GB $32.24 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR38400-724K12
Total capacity1.5 TB (12 × 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 items1.5 TB 12 × 128 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

5 more in the same range

Questions about this item

Should I choose the 1.5TB kit with twelve 128GB modules or a smaller capacity for my Supermicro H14DSH?

The 1.5TB kit fills all twelve slots with 128GB 2Rx4 registered ECC RDIMMs, giving maximum supported capacity at DDR5 4800 speed.

What does the DDR5 4800 rating mean once the modules are installed in the server?

The kit runs at 4800 MT/s with CL40 latency at 1.1V, delivering PC5-38400 bandwidth when the memory controller is fully populated with registered DIMMs.

How does the 288-pin registered ECC interface affect real-world stability and capacity limits?

Registered buffering lets every slot run fully populated at 1.5TB while ECC corrects single-bit errors on the fly, preventing silent data corruption.

More in Model-Specific Memory Upgrades

Similar items