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Four green 288-pin DDR4 UDIMM modules without heat spreaders

NEMIX RAM

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

SKU CH-G0DQ-5XPHB

A 128 GB DDR4 2933 CL21 kit of four 32 GB 2Rx8 unbuffered UDIMMs at 1.2 V for Supermicro systems

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL21
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • 128 GB total capacity from four 32 GB modules
  • 2933 MHz DDR4 speed rated at PC4-23400
  • CL21 latency at 1.2 V standard voltage
  • 2Rx8 dual-rank organisation for density
  • 288-pin UDIMM form factor fits Supermicro boards

128GB DDR4 2933 kit for Supermicro systems

This 128GB kit contains four 32GB DDR4 UDIMM modules rated at 2933MT/s with CL21 latency. It is built for Supermicro desktop and workstation motherboards that accept non-ECC unbuffered memory. The 2Rx8 organisation and 1.2V operation match the platform requirements.

Replaces lower-capacity or slower DDR4 UDIMMs

If your Supermicro board currently runs smaller modules or a lower speed grade, this kit raises total capacity to 128GB and sets the data rate to 2933MT/s. The upgrade is worthwhile when workloads need more simultaneous threads or larger datasets than the existing memory can hold.

Verify four free 288-pin slots

Confirm the motherboard has four available DDR4 UDIMM slots and does not require registered or ECC modules. The kit uses 288-pin unbuffered DIMMs without heat spreaders, so clearance around the CPU socket should also be checked.

How it compares

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

Price $687.99
Pricier than about 56% 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 $5.37 per GB
Cheaper than about 72% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineSuperMicro Server/Workstation Compatible Series Memory
Model nameSuperMicro DDR4 2933 MHz Non-ECC Unbuffered UDIMM
Part numberMD23400-328K4
Total capacity128 GB (4 × 32 GB)
Product type288-Pin DDR4 UDIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL21
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Memory rank2Rx8
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 CL21 288-PIN Non-ECC Unbuffered UDIMM KIT

Questions about this item

Will these 288-pin DDR4 UDIMM modules fit the MBD-C9Z490-PG motherboard?

Yes, the kit is built for Supermicro boards including the MBD-C9Z490-PG and uses the standard 288-pin DDR4 UDIMM form factor.

What is the correct way to populate all four 32 GB sticks for quad-channel operation?

Install one module in each of the four memory channels following the motherboard manual slot order; the common mistake is placing two modules in the same channel.

Do these non-ECC unbuffered DIMMs need any firmware updates or periodic re-seating over time?

No firmware is required and the modules are designed to run at 1.2 V without further intervention once seated correctly.

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