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Two green DDR4 RDIMM modules with black chips no heat spreader 288 pin gold contacts

NEMIX RAM

NEMIX RAM 128GB (2x64GB) DDR4 3200 CL22 2Rx4 ECC RDIMM Supermicro X12QCH+ memory upgrade

SKU CH-EDKB-NJ9K7

A 128GB kit of two 64GB DDR4 3200 CL22 2Rx4 ECC registered RDIMMs validated for the Supermicro X12QCH+ motherboard

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeRegistered

Size 128GB 2X64GB

Show 8 more
  • 128 GB total capacity from two 64 GB modules for maximum server density
  • DDR4 3200 speed rated at PC4-25600 bandwidth for high-throughput workloads
  • Registered ECC design with 2Rx4 organisation corrects single-bit errors automatically
  • 2 V operation at CL22 latency matches the motherboard's exact timing requirements
  • 288-pin RDIMM form factor validated for Supermicro X12QCH+ memory population rules

Purpose-built server memory kit

This 128 GB kit contains two 64 GB DDR4 RDIMMs rated at 3200 MT/s with CL22 timings and 1.20 V operation. The modules are registered, ECC-enabled, and organised as 2Rx4 to match the Supermicro X12QCH+ motherboard's requirements. They arrive new and ready for installation in 288-pin slots.

Registered DDR4 limits at full population

Registered DDR4 offloads electrical load from the memory controller, allowing every slot to be populated without signal degradation. The trade-off is one extra clock cycle of latency compared with unbuffered modules and a hard requirement for motherboard support of the RDIMM pinout. ECC corrects single-bit errors on the fly, but cannot fix multi-bit failures.

Replaces smaller or unbuffered kits

Upgrading from lower-capacity RDIMMs or from UDIMMs that the board cannot recognise eliminates capacity ceilings and boot-time mismatches. The jump is worth it when workloads need the full 128 GB at rated speed and the system manual confirms the 2Rx4 population rule. Builders needing more than two modules per channel or non-ECC memory should look elsewhere.

How it compares

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

Price $860.99
Pricier than about 59% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $6.73 per GB
Cheaper than about 59% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR4 ECC RDIMM Registered Server Memory
Part numberMR25600-924K2
Total capacity128 GB (2 × 64 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 rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB 2 × 64 GB DDR4 3200 MHz PC4-25600 2Rx4 1.2 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

Should I choose the 2x64GB kit or look for a different capacity for my Supermicro X12QCH+?

The 128GB kit provides two 64GB RDIMMs that match the board's 288-pin DDR4 slots and registered ECC requirement; other capacities would need the same 2Rx4 rank, 1.20V voltage and CL22 timing to be recognised at full speed.

What does the DDR4-3200 CL22 rating mean once the modules are installed in the server?

The memory controller will run each DIMM at 3200 MT/s with a CAS latency of 22 cycles at 1.20V, delivering the rated PC4-25600 bandwidth while ECC corrects single-bit errors on the fly.

How does the 288-pin RDIMM interface limit what I can install?

Only 288-pin DDR4 registered DIMMs fit the X12QCH+ slots; UDIMMs, SODIMMs or any other generation will not seat, and the board's population rules require matching 2Rx4 rank and 1.20V operation.

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