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Two bare green DDR5 UDIMM sticks, 32 GB each, no heat spreader

NEMIX RAM

NEMIX RAM 64GB (2×32GB) DDR5 4800 CL40 2Rx8 1.1V UDIMM ASUS Z890-I

SKU CH-TH65-DFYSJ

A 64 GB DDR5 kit of two 32 GB unbuffered UDIMMs running at 4800 MT/s CL40 and 1.1 V, validated for the ASUS ROG Strix Z890-I Gaming WiFi motherboard

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeUnbuffered
  • Rated voltage1.1 V

Capacity 64GB 2X32GB

  • 64 GB kit gives headroom for heavy workloads
  • DDR5 4800 speed moves data quickly through the system
  • CL40 latency keeps response tight under load
  • 1 V operation reduces power draw and heat
  • Validated for ASUS ROG Strix Z890-I Gaming WiFi motherboard

Compatibility

This 64 GB kit is built for the ASUS ROG Strix Z890-I Gaming WiFi motherboard. It uses 288-pin DDR5 UDIMM modules that install without ECC or buffering. The dual-rank 2Rx8 organisation matches the board's supported topology. System builders get a validated upgrade path for this specific platform.

Sustained workload behaviour

Modules run at 4800 MT/s with CL40 latency at 1.10 V. Major OEM Samsung, Micron or Hynix chips are stress-tested under load before shipping. The unbuffered design feeds data directly to the memory controller for consistent throughput. Dual 32 GB sticks populate both channels for balanced bandwidth during extended sessions.

Thermals and power

No heat spreader is fitted, so airflow across the bare PCB handles cooling. Standard 1.1 V DDR5 voltage keeps power draw low for a 64 GB configuration. Builders who prefer silent or compact cases can rely on case airflow alone. The kit suits systems where low acoustic output matters.

How it compares

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

Price $912.99
Pricier than about 60% 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 $14.27 per GB
Pricier than about 61% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineASUS Server Motherboard Compatible Series Memory
Model nameASUS DDR5 4800 MHz Non-ECC Unbuffered UDIMM
Part numberMD38400-328K2
Total capacity64 GB (2 × 32 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 rank2Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASUS
In the box
Included items64 GB (2 × 32 GB) DDR5 4800 MHz PC5-38400 2Rx8 1.1 V CL40 288-PIN Non-ECC Unbuffered UDIMM KIT

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Questions about this item

How much heat does the 1.1V DDR5 4800 kit produce when running all day?

Operating at 1.10 volts without a heat spreader, the modules run cooler than higher-voltage DDR5, so sustained loads generate modest warmth that standard case airflow handles easily.

What motherboard slot and CPU memory controller are required for this 288-pin DDR5 4800 kit?

You need a DDR5-capable motherboard with 288-pin UDIMM slots — such as the ASUS ROG Strix Z890-I Gaming WiFi — and a processor that supports DDR5 4800 operation.

Will this 2Rx8 CL40 kit work with the four-slot DDR5 layout on my ASUS Z890 board?

Yes, the two 32 GB 2Rx8 modules occupy two slots and are validated for the ASUS Z890 platform, leaving the remaining two slots free for a future matched kit.

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