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Green circuit board with black chips, no heat spreader, 288-pin DDR5 UDIMM

NEMIX RAM

NEMIX RAM 48GB DDR5 5600 CL46 1.1V 288-pin UDIMM memory upgrade for ASRock Z790 PG Lightning

SKU CH-5ZEJ-QC3QX

48GB DDR5 5600 CL46 UDIMM module validated for ASRock Z790 PG Lightning motherboards

  • Total capacity48 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeUnbuffered
  • Rated voltage1.1 V

Capacity 48GB

  • 48 GB capacity expands multitasking headroom for demanding workloads
  • DDR5 5600 MT/s data rate accelerates throughput on compatible boards
  • CL46 latency timing supports responsive operation at rated speed
  • 1 V operating voltage reduces power draw versus higher-voltage modules
  • 288-pin UDIMM form factor fits standard desktop DIMM slots

48GB DDR5 5600 module for ASRock Z790

This NEMIX RAM kit provides a single 48GB DDR5 5600 UDIMM built for the ASRock Z790 PG Lightning motherboard. It runs at 1.1V with CL46 latency and uses a 2Rx8 organisation on a standard 288-pin form factor.

Suits builders adding 48GB to a compatible board

It fits users who need exactly one 48GB DDR5 5600 stick for the named ASRock platform. Builders requiring ECC, registered DIMMs, a different voltage, lower latency, higher speed or multiple modules should look elsewhere.

5600 MT/s speed with CL46 timing

The module operates at DDR5 5600 (PC5-44800) with a CAS latency of CL46 at 1.1V. This speed and latency combination determines whether the memory matches the board's qualified vendor list and the builder's performance target.

How it compares

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

Price $647.99
Pricier than about 55% of the 21,161 comparable items (median $397.99).
Total capacity 48 GB
Higher than about 55% of the 20,941 comparable items (median 32 GB).
Price per GB $13.50 per GB
Pricier than about 60% 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 numberMD44800-4828K1
Total capacity48 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 items48 GB (1 × 48 GB) DDR5 5600 MHz PC5-44800 2Rx8 1.1 V CL46 288-PIN Non-ECC Unbuffered UDIMM

Other versions of this model

5 more in the same range

Questions about this item

How do I install the 288-pin DDR5 UDIMM into the ASRock Z790 PG Lightning motherboard?

Align the module notch with the slot key, press down firmly until both retention clips click into place, and ensure the 1.10V DDR5 5600 stick seats fully in the correct channel.

What maintenance will the 48GB 2Rx8 CL46 module need over time?

No routine maintenance is required; keep the system free of dust and verify the memory runs at the rated 1.1V to preserve long-term stability.

What limit appears first when the PC5-44800 kit runs under sustained load?

The CL46 latency at 5600 MT/s defines the performance ceiling before bandwidth or voltage constraints become the bottleneck.

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