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Two green DDR5 UDIMM modules without heat spreaders, 288-pin, 64GB kit

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR5 5600 CL46 1.1V 2Rx8 UDIMM for ASRock Z790 Riptide WiFi memory upgrade

SKU CH-SPKZ-SX74B

A 64 GB dual-channel DDR5 kit with two 32 GB unbuffered UDIMMs at 5600 MT/s CL46 and 1.1 V, validated for the ASRock Z790 Riptide WiFi motherboard

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeUnbuffered
  • Rated voltage1.1 V
  • 64 GB kit (2 × 32 GB) doubles desktop capacity
  • DDR5 5600 speed (PC5-44800) raises data throughput
  • CL46 latency at 1.10 V balances response with efficiency
  • 2Rx8 288-pin UDIMM layout fits ASRock Z790 Riptide WiFi
  • Non-ECC unbuffered modules tested for stable operation

ASRock Z790 Riptide WiFi DDR5 kit

This 64 GB kit contains two 32 GB DDR5 UDIMMs built for the ASRock Z790 Riptide WiFi motherboard. It delivers 64 GB of total capacity across a matched pair of unbuffered modules. The kit targets system builders and upgraders who need maximum capacity on this specific platform.

DDR5 5600 CL46 practical limits

The modules run at DDR5 5600 with PC5-44800 bandwidth and a CAS latency of CL46 at 1.10 V. This speed represents the standard JEDEC profile for DDR5 5600 without overclocking headroom. Systems limited to lower DDR5 frequencies will downclock the kit automatically.

Dual-rank 2Rx8 organisation

Each 32 GB module uses a 2Rx8 organisation, placing two ranks on a single 288-pin DIMM. This density can restrict maximum supported capacity on motherboards with fewer slots or stricter rank limits. Buyers who need more than two modules should verify the board's rank handling before purchase.

How it compares

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

Price $1,004.99
Pricier than about 61% of the 21,161 comparable items (median $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 $15.70 per GB
Pricier than about 62% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineASRock Gaming Motherboard Compatible Series Memory
Model nameASRock DDR5 5600 MHz Non-ECC Unbuffered UDIMM
Part numberMD44800-328K2
Total capacity64 GB (2 × 32 GB)
Product type288-Pin DDR5 UDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL46
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASRock
In the box
Included items64 GB (2 × 32 GB) DDR5 5600 MHz PC5-44800 2Rx8 1.1 V CL46 288-PIN Non-ECC Unbuffered UDIMM KIT

Questions about this item

Is the 64GB kit sold as two 32GB modules or a single stick?

The kit contains two 32GB UDIMMs, giving 64GB total across two slots.

What does the 5600 speed rating deliver on the Z790 Riptide WiFi?

The modules run at DDR5 5600 (PC5-44800) with CL46 latency at 1.10V on this board.

Will the 288-pin DDR5 UDIMM fit the motherboard's memory slots?

Yes, the 288-pin DDR5 UDIMM form factor matches the Z790 Riptide WiFi DIMM slots.

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