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Four green DDR4 UDIMM sticks with black chips no heat spreader

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR4 2933 ECC UDIMM CL21 1.2V 2Rx8 memory upgrade

SKU CH-N6T9-5HY1G

128GB kit of four 32GB DDR4 2933 ECC UDIMM modules at CL21 and 1.2V, validated for Supermicro X12SCZ-F and X12SCZ-TLN4F motherboards

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeUnbuffered

Size 128GB 4X32GB

  • 128 GB total capacity from four 32 GB modules
  • DDR4 2933 speed rated at PC4-23400 for rated throughput
  • ECC function detects and corrects single-bit errors on the fly
  • Unbuffered 288-pin UDIMM form factor matches Supermicro X12SCZ-F / TLN4F requirements
  • CL21 latency at 1.2 V for stable operation within spec

System-specific ECC upgrade

This 128 GB kit contains four 32 GB DDR4 2933 modules built for Supermicro X12SCZ-F and X12SCZ-TLN4F motherboards. The unbuffered ECC UDIMM format matches the board's 288-pin slots and population rules. It is intended for servers and workstations that require error-correcting memory at the rated speed. Builders using consumer boards or registered DIMM platforms cannot use this kit.

Verified 2Rx8 rank and 1.2 V operation

The memory controller expects a 2Rx8 organisation at 1.20 V with CL21 timing; this kit meets those exact electrical parameters. Correct rank structure and voltage ensure the system recognises the full 128 GB capacity and runs at PC4-23400 without down-clocking. Modules with different rank counts or voltages will not post or will operate at reduced performance.

Passive thermals and standard DDR4 power

Without a heat spreader the modules rely on chassis airflow, which is typical for 1.2 V DDR4 UDIMMs in server enclosures. Power draw stays within the standard DDR4 envelope for this voltage and density. Acoustic impact is zero because no active cooling is present. Environments with restricted airflow should verify case cooling capacity before installation.

How it compares

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

Price $896.99
Pricier than about 60% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $7.01 per GB
Cheaper than about 57% 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 Memory
Model nameDDR4 ECC Unbuffered UDIMM Memory
Part numberME23400-328K4
Total capacity128 GB (4 × 32 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
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB 4 × 32 GB DDR4 2933 MHz PC4-23400 2Rx8 1.2 V 288-PIN ECC UDIMM KIT

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Questions about this item

Will 2933 MT/s DDR4 actually run at 2933 MT/s on a Supermicro X12SCZ-F?

Yes — the kit is spec-matched to the board's memory controller, so the 2933 MT/s rating is recognised and sustained at full 128 GB capacity.

Does the PC4-23400 label limit bandwidth on this platform?

PC4-23400 is simply the JEDEC bandwidth designation for DDR4-2933; the modules deliver that throughput when the motherboard populates all four slots per its validated rules.

What physical clearance do the 288-pin UDIMMs need in the Supermicro chassis?

Standard 288-pin UDIMM height with no heat spreader, so they fit the regular DIMM sockets on the X12SCZ-F / X12SCZ-TLN4F without interfering with CPU coolers or airflow guides.

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