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Four green DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 128GB (4×32GB) DDR5 4800 CL40 1.10V ECC RDIMM server RAM

SKU CH-5HN5-2PYWK

A 128 GB DDR5 ECC registered server memory kit of four 32 GB modules at 4800 MT/s with CL40 latency and 1.10 V operation

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Capacity 128GB (4 x 32GB)

  • 128 GB total capacity from four 32 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • CL40 CAS latency at 1.10 V operating voltage
  • ECC registered design with 2Rx4 rank organisation
  • 288-pin RDIMM form factor built with major OEM chips

128 GB DDR5 ECC RDIMM kit

This 128 GB kit contains four 32 GB DDR5 RDIMM modules rated at 4800 MT/s with CL40 latency and 1.10 V operation. It targets servers and workstations that require registered ECC memory for data integrity and high capacity.

Suits ECC registered platforms only

The modules are registered ECC RDIMMs, so they will not function in consumer desktop boards or laptops that accept only unbuffered non-ECC DIMMs. Buyers who need standard DDR5 UDIMMs for a regular PC should look at a different product line.

Fills four 288-pin DDR5 slots

Each module uses the 288-pin DDR5 RDIMM form factor and draws 1.10 V, leaving other DIMM slots free for further expansion if the motherboard supports more than four channels. No heat spreader is fitted, so airflow across the PCB must be provided by the chassis.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $3,478.99
Pricier than about 90% of the 6,523 comparable items (median $188.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $27.18 per GB
Pricier than about 88% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR38400-324K4
Total capacity128 GB (4 × 32 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

Other versions of this model

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Questions about this item

Will my motherboard need DDR5 slots to accept these 288-pin RDIMMs?

Yes, these are DDR5 4800 modules with a 288-pin RDIMM form factor, so the board must provide DDR5 RDIMM slots.

Can I mix these 2Rx4 registered modules with unbuffered DIMMs already in the system?

No, registered ECC RDIMMs cannot be mixed with unbuffered memory; the motherboard requires all slots to use registered modules.

How do I confirm the kit is running at the rated 4800 MT/s and CL40 after installation?

Check the BIOS memory information or a tool such as CPU-Z; it should report DDR5-4800, CAS 40, 1.10 V and 128 GB total across the four 32 GB modules.

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