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Eight green DDR4 ECC UDIMM modules in a row

NEMIX RAM

NEMIX RAM 128GB (8x16GB) DDR4 2933 ECC UDIMM CL21 1.2V 2Rx8 server RAM

SKU CH-D9W0-5M3JC

Eight 16 GB DDR4 ECC UDIMM modules at 2933 MT/s, CL21, 1.2 V, 2Rx8 for server workloads

  • Total capacity128 GB (8 × 16 GB)
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeUnbuffered

Capacity 128GB (8 x 16GB)

  • 128 GB kit provides eight 16 GB DDR4 modules
  • ECC unbuffered design protects data integrity in server workloads
  • 2933 MHz speed with CL21 latency supports responsive multitasking
  • 20 V operation reduces power draw across all modules
  • 288-pin UDIMM form factor fits compatible server motherboards

128GB DDR4 2933 ECC UDIMM kit

This kit provides 128GB of DDR4 2933 ECC unbuffered memory across eight 16GB modules. It is built for servers and workstations that require error-correcting code to maintain data integrity under sustained loads. The 2Rx8 organisation and 1.2V operation suit standard UDIMM slots in compatible platforms. IT professionals choose this capacity for virtualisation hosts and database nodes.

Unbuffered ECC with major OEM chips

Each module uses Samsung Micron or Hynix components selected for enterprise workloads. The lack of a heat spreader keeps the profile low for dense chassis while the unbuffered design reduces latency compared to registered alternatives. ECC functionality detects and corrects single-bit errors without additional software. Rigorous stress testing under load is performed before shipment to verify stability.

Simple UDIMM installation in matched sets

The 288-pin DDR4 modules install in minutes by seating each stick firmly until the retention clips engage. Populating all eight slots requires a motherboard that supports this total capacity and the 2933 speed at CL21. Boot failures usually mean the firmware needs an update or the slots must be filled in a specific sequence documented by the board vendor.

How it compares

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

Price $1,003.99
Pricier than about 80% of the 6,523 comparable items (median $188.99).
Total capacity 128 GB (8 × 16 GB)
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $7.84 per GB
Pricier than about 55% 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 nameDDR4 ECC Unbuffered UDIMM Memory
Part numberME23400-628K8
Total capacity128 GB (8 × 16 GB)
Product type288-Pin DDR4 ECC UDIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL21
ECC supportYes
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V

Other versions of this model

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Questions about this item

Will the 2Rx8 modules need replacement after a certain number of write cycles?

DDR4 ECC UDIMM memory does not wear out from write cycles; the modules only need replacement if a hardware fault occurs or capacity requirements change.

Does the CL21 latency at 2933 MHz become the bottleneck during sustained workloads?

The CL21 timing at 2933 MHz sets the access latency; under continuous load the memory controller waits for each CAS cycle, so latency is the first limit reached.

How much heat do the eight 1.2 V modules generate when running all day without heat spreaders?

Each module operates at 1.20 V with no heat spreader; total power draw is low enough that standard chassis airflow keeps temperatures within normal DDR4 limits.

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