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Four green DDR4 server memory modules with gold contacts and black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 512GB (4x128GB) DDR4 3200 CL22 ECC RDIMM server RAM

SKU CH-WNE6-6QMQ0

A 512GB registered ECC DDR4-3200 kit with four 128GB modules at CL22 and 1.2V

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeRegistered

Capacity 512GB (4 x 128GB)

  • 512 GB total capacity across four 128 GB modules
  • DDR4 3200 speed rated at PC4-25600 bandwidth
  • CL22 latency with 1.2 V operating voltage
  • ECC registered RDIMM design for data integrity
  • 8Rx4 rank configuration using major OEM chips

Server capacity and ECC protection

This kit provides 512GB of DDR4 ECC RDIMM memory across four 128GB modules. Registered buffering and error-correcting code suit enterprise servers and workstations that require data integrity under sustained load. The 8Rx4 organisation supports high-density population on compatible platforms.

DDR4 3200 registered limits

The modules run at DDR4 3200 (PC4-25600) with CL22 latency at 1.20V. Registered DIMMs add one clock cycle of address/command buffering, so the memory controller must support RDIMM operation; unbuffered consumer boards will not accept them. Maximum usable capacity depends on the processor and motherboard memory-controller specification.

Installation notes and common issues

The 288-pin DIMMs install in standard DDR4 RDIMM slots; no heat spreader is fitted, so airflow across the modules is required. Systems often fail to post when RDIMMs are mixed with UDIMMs, when population rules are ignored, or when the BIOS lacks the microcode for 128GB 8Rx4 modules. Verify the qualified-vendor list before fitting.

How it compares

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

Price $3,729.99
Pricier than about 90% of the 6,523 comparable items (median $188.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 91% of the 6,064 comparable items (median 32 GB).
Price per GB $7.29 per GB
Typical for this category: the median of 6,064 items is $7.25 per GB.

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Memory
Model nameDDR4 ECC RDIMM Registered Server Memory
Part numberMR25600-784K4
Total capacity512 GB (4 × 128 GB)
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Memory rank8Rx4
Heat spreaderNo
Power
Rated voltage1.2 V

Other versions of this model

5 more in the same range

Questions about this item

Should I buy the 512GB kit or look for smaller 128GB modules?

The kit contains four 128GB modules for a total of 512GB; choose it only if your server has four free RDIMM slots and the platform supports 8Rx4 density at this capacity.

What does the 3200 CL22 rating mean for actual server workloads?

The modules run at DDR4 3200 with CAS latency 22 at 1.20V, giving 25600 MB/s peak bandwidth per stick when the memory controller trains them at the rated speed.

Is the 288-pin DDR4 RDIMM interface compatible with my motherboard?

These are 288-pin DDR4 RDIMM modules; they fit only motherboards with registered DDR4 DIMM slots and will not work in unbuffered or DDR5 boards.

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