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Four green DDR5 UDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 64GB (4x16GB) DDR5 4800 CL40 1.1V UDIMM ASRock Z790 B650 LiveMixer memory upgrade

SKU CH-TKSZ-XBY5R

A 64 GB DDR5 kit with four 16 GB unbuffered UDIMMs running at 4800 MT/s, CL40 and 1.1 V, validated for ASRock Z790 and B650 LiveMixer boards

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeUnbuffered
  • Rated voltage1.1 V
  • 64 GB kit (4 × 16 GB) expands desktop capacity
  • DDR5 4800 MT/s PC5-38400 speed for responsive multitasking
  • CL40 1.10 V timing balances latency and power draw
  • 288-pin UDIMM fits ASRock Z790 LiveMixer and B650 LiveMixer boards
  • Major OEM Samsung, Micron or Hynix chips ensure module reliability

Target System & Kit Layout

This 64 GB kit contains four 16 GB DDR5 UDIMMs validated for ASRock Z790 LiveMixer and B650 LiveMixer motherboards. It suits builders who need a matched set for those specific boards and who do not require ECC or registered memory.

DDR5 4800 Interface Limits

The modules run at DDR5 4800 (PC5-38400) with CL40 latency at 1.10 V. That speed is the baseline DDR5 data rate; systems needing higher frequencies or tighter timings will not reach them with this kit.

Installation Notes

Four unbuffered 288-pin DIMMs install in the standard desktop slots; the kit has no heat spreader, so clearance is minimal. Builders who need ECC, registered modules or a different pin count cannot use this memory.

How it compares

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

Price $715.99
Pricier than about 56% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (4 × 16 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $11.19 per GB
Pricier than about 56% 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 4800 MHz Non-ECC Unbuffered UDIMM
Part numberMD38400-618K4
Total capacity64 GB (4 × 16 GB)
Product type288-Pin DDR5 UDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Memory rank1Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASRock
In the box
Included items64 GB (4 × 16 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN Non-ECC Unbuffered UDIMM KIT

Questions about this item

Should I pick the 4 x 16 GB kit or a different capacity?

This kit provides 64 GB total across four 16 GB modules, filling four UDIMM slots on the ASRock Z790 LiveMixer or B650 LiveMixer for maximum dual-channel capacity.

What does the 4800 MT/s rating mean once the modules are installed?

The memory operates at DDR5 4800 with CL40 latency at 1.10 V, giving the rated transfer speed when the motherboard trains the kit at that frequency.

How does the 288-pin DDR5 interface limit performance on these boards?

The 288-pin UDIMM form factor carries the DDR5 4800 signal (PC5-38400) unbuffered and non-ECC, so the peak data rate is capped at the JEDEC 4800 specification.

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