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Four green DDR4 RDIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 512GB (4x128GB) DDR4 3200 ECC RDIMM CL22 1.2V 288-pin SuperMicro M12SWA-TF WRX80 memory upgrade

SKU CH-NYJ7-7B4G1

A 512GB DDR4 ECC registered server memory kit of four 128GB modules running at 3200MHz CL22 for the SuperMicro M12SWA-TF WRX80 platform

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

Capacity 512GB 4X128GB

Show 4 more
  • 512 GB total capacity from four 128 GB modules
  • DDR4 3200 speed rated at PC4-25600 bandwidth
  • ECC registered RDIMM design protects data integrity
  • Low 1.20 V operation reduces power draw
  • Validated for SuperMicro M12SWA-TF WRX80 motherboard

512 GB DDR4 ECC RDIMM kit for SuperMicro WRX80

This 512 GB kit contains four 128 GB DDR4 3200 registered DIMMs with ECC and a CL22 latency. It is built for the SuperMicro M12SWA-TF WRX80 motherboard and targets professionals who need maximum memory capacity in a single workstation or server platform.

DDR4 3200 registered ECC limits

The modules run at DDR4 3200 (PC4-25600) with a 1.20 V operating voltage and a 4Rx4 organisation. Registered buffering and ECC add latency overhead, so raw bandwidth is lower than unbuffered consumer memory at the same clock. The 288-pin form factor fits only DDR4 RDIMM slots; it will not work in UDIMM, SO-DIMM or DDR5 sockets.

Check motherboard slot count and CPU support

Verify that the M12SWA-TF WRX80 board has at least four free DDR4 RDIMM slots and that the installed processor supports 4Rx4 registered modules at this capacity. Confirm the BIOS is updated to a version that recognises 128 GB per DIMM. Systems limited to lower densities or unbuffered memory cannot use this kit.

How it compares

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

Price $3,834.99
Pricier than about 76% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $7.49 per GB
Cheaper than about 54% 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 lineSuperMicro Server/Workstation Compatible Series Memory
Model nameSuperMicro DDR4 3200 MHz ECC RDIMM Registered Server Memory
Part numberMR25600-744K4
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
Heat spreaderNo
Memory rank4Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSupermicro
In the box
Included items512 GB (4 × 128 GB) DDR4 3200 MHz PC4-25600 4Rx4 1.2 V CL22 288-PIN ECC RDIMM Registered Server Memory KIT

Other versions of this model

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Questions about this item

Should I choose the 4x128GB kit or a different capacity for my SuperMicro M12SWA-TF WRX80?

The kit provides 512GB total across four 128GB RDIMMs, matching the board's eight-channel design when fully populated.

What does DDR4 3200 CL22 mean for real workloads on this platform?

The modules run at 3200MT/s with 22-cycle CAS latency, delivering registered ECC stability for multi-threaded server tasks.

How does the 288-pin RDIMM interface limit speed or capacity on this motherboard?

The 288-pin DDR4 RDIMM slot caps at 3200MT/s and supports 4Rx4 organisation, so this 128GB-per-module kit fits the electrical and physical limits.

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