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Green 288-pin DDR4 UDIMM module with black chips, no heat spreader

NEMIX RAM

NEMIX RAM 8GB DDR4 2933MHz CL21 1.2V UDIMM SuperMicro MBD-C9X299-PGF memory upgrade

SKU CH-A3HP-YJJA9

8GB DDR4 2933MHz CL21 1.2V UDIMM module built for SuperMicro MBD-C9X299-PGF workstations

  • Total capacity8 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL21
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • 8GB DDR4 2933MHz boosts multitasking on SuperMicro MBD-C9X299-PGF
  • CL21 latency and 1.2V operation keep system responsive and efficient
  • 288-pin UDIMM fits directly into compatible SuperMicro workstation boards
  • Non-ECC unbuffered design suits desktop and gaming workloads
  • Major OEM chips from Samsung Micron Hynix ensure reliable performance

SuperMicro MBD-C9X299-PGF DDR4 2933MHz upgrade

This 8GB DDR4 UDIMM is built for the SuperMicro MBD-C9X299-PGF motherboard. It targets users who need a single 8GB module to increase system memory without replacing existing sticks. The non-ECC unbuffered design matches the board's desktop and workstation memory slots. It suits professionals expanding a compatible SuperMicro platform.

Straightforward DIMM installation

The 288-pin UDIMM seats in the standard DDR4 slot with no tools required. Align the notch, press until the latches click, and the system recognises the 2933MHz speed at 1.20V automatically. Common issues include mixing ranks or speeds that prevent dual-channel operation, or forgetting to seat the module fully which causes boot failures.

Verify your board and memory layout

Confirm the motherboard model is exactly MBD-C9X299-PGF before ordering. Check how many slots are free and whether the current memory runs at 2933MHz CL21 1Rx8 to avoid timing mismatches. The module is non-ECC unbuffered, so it will not work in slots that require registered or ECC DIMMs. Ensure the BIOS is up to date for full compatibility.

How it compares

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

Price $51.99
Cheaper than about 77% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $6.50 per GB
Cheaper than about 61% 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 numberMD23400-818K1
Total capacity8 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 rank1Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSupermicro
In the box
Included items8 GB (1 × 8 GB) DDR4 2933 MHz PC4-23400 1Rx8 1.2 V CL21 288-PIN Non-ECC Unbuffered UDIMM

Questions about this item

How do I verify the module is running at DDR4 2933 CL21 1.20V after installing it in the SuperMicro MBD-C9X299-PGF?

Enter the BIOS on the SuperMicro MBD-C9X299-PGF and confirm the memory frequency shows 2933 MT/s, CAS latency 21, and voltage 1.20V; CPU-Z or dmidecode will report the same values under SPD and timings.

What ships in the package and do I need any extra parts for the SuperMicro MBD-C9X299-PGF?

The box contains one 8GB 288-pin DDR4 UDIMM (1Rx8, non-ECC, unbuffered, no heat spreader); no cables, brackets, or tools are included and none are required for this motherboard.

Which capacity or speed version should I pick for the SuperMicro MBD-C9X299-PGF?

This specific part number MD23400-818K1 is an 8GB DDR4 2933 PC4-23400 module; choose it when you need a single 8GB stick at that exact speed and latency for the listed board.

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