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Two green DDR4 UDIMM modules, no heat spreaders, 288-pin gold contacts

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR4 2933 CL21 2Rx8 1.2V 288-pin UDIMM memory upgrade

SKU CH-RY62-1F4CF

64 GB kit of two 32 GB DDR4 2933 CL21 unbuffered UDIMMs for Supermicro systems

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL21
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • 64 GB kit doubles system memory capacity using two 32 GB modules
  • DDR4 2933 MHz speed matches PC4-23400 bandwidth for responsive workloads
  • 20 V operation reduces power draw and heat in compatible Supermicro platforms
  • CL21 CAS latency at 2Rx8 rank keeps timing stable under sustained load
  • 288-pin UDIMM form factor fits standard desktop and workstation DIMM slots

SuperMicro Compatible DDR4 Kit

This 64 GB kit contains two 32 GB unbuffered UDIMM modules built for SuperMicro desktop and workstation motherboards. It targets system builders and IT professionals who need validated memory for compatible platforms. The non-ECC design suits standard workstation workloads rather than mission-critical server deployments. Installation follows the standard 288-pin DDR4 process described in the motherboard manual.

DDR4 2933 CL21 Specification

The modules run at DDR4 2933 (PC4-23400) with a CAS latency of CL21 at 1.20 V. This speed and timing combination is the single specification that determines whether the kit matches the motherboard's qualified-vendor list. Builders must verify that their specific SuperMicro board supports DDR4 2933 non-ECC unbuffered memory before purchase. The 2Rx8 rank organisation is fixed by the module design.

64 GB Capacity and Headroom

The 64 GB total capacity handles large datasets, virtual machines and multi-application workflows on supported SuperMicro workstations. Dual-channel population with two modules leaves remaining slots open for future expansion if the board provides more than two DIMM slots. Systems requiring ECC error correction or registered memory will not be compatible with this non-ECC unbuffered kit.

How it compares

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

Price $375.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $5.87 per GB
Cheaper than about 67% 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 2933 MHz Non-ECC Unbuffered UDIMM
Part numberMD23400-328K2
Total capacity64 GB (2 × 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 items64 GB (2 × 32 GB) DDR4 2933 MHz PC4-23400 2Rx8 1.2 V CL21 288-PIN Non-ECC Unbuffered UDIMM KIT

Questions about this item

What does 2933 MT/s mean once the kit is installed in a Supermicro workstation?

The modules run at 2933 MT/s, delivering PC4-23400 bandwidth so the CPU sees the full rated throughput without manual tuning.

How does the DDR4 288-pin UDIMM interface limit performance in practice?

The unbuffered DDR4 UDIMM slot caps transfer rate at 2933 MT/s and does not support ECC, so data integrity relies on the CPU alone.

What physical clearance does the 288-pin UDIMM need on the Supermicro C9X299-PGF board?

Each 32 GB stick is a standard-height 288-pin UDIMM with no heat spreader, so it fits the regular DIMM slots without extra clearance.

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