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Two bare green DDR5 UDIMM sticks, no heat spreaders

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR5 4800 CL40 2Rx8 1.1V UDIMM memory upgrade for ASUS ROG Maximus Z890 APEX

SKU CH-8S7Z-VJ9K5

DDR5 4800 64 GB kit, two 32 GB unbuffered UDIMMs at CL40 1.1 V, validated for the ASUS ROG Maximus Z890 APEX

  • 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 expands capacity for demanding workloads
  • DDR5 4800 speed delivers high bandwidth for data-intensive tasks
  • CL40 latency supports responsive system operation
  • 10 V operation reduces power draw and heat
  • Validated for ASUS ROG Maximus Z890 APEX motherboard

Capacity and fit

This kit delivers 64 GB across two 32 GB DDR5 modules built for the ASUS ROG Maximus Z890 APEX motherboard. It targets builders and IT professionals who need reliable capacity for workstations or AI workloads on that specific platform. Buyers who require ECC error correction or registered modules should look elsewhere.

Installation notes

The 288-pin UDIMM form factor drops into standard desktop slots and runs at the standard 1.1 V, so no voltage adjustment is needed. The lack of a heat spreader keeps the profile low but leaves the DRAM exposed to airflow constraints in tightly packed builds. Always consult the motherboard manual for the correct population order.

Sustained-load behaviour

Rated at 4800 MT/s with CL40 latency and a dual-rank 2Rx8 organisation, the modules are stress-tested under load to maintain stability during extended compute sessions. The major-brand Samsung, Micron or Hynix chips provide consistent throughput for memory-intensive tasks without thermal throttling from a spreader.

How it compares

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

Price $812.99
Pricier than about 58% 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 $12.70 per GB
Pricier than about 58% 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

Other versions of this model

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Questions about this item

How do I confirm the kit is running at DDR5 4800 CL40 after installation?

Open the BIOS or a hardware monitor and verify the memory speed shows 4800 MT/s with timings at CL40.

What is included in the package and is anything else required?

The box contains the 64 GB kit as two 32 GB 288‑pin UDIMM modules; no extra parts are needed for installation.

Which capacity version should I choose for the ASUS ROG Maximus Z890 APEX?

This 64 GB kit (2×32 GB) is the configured option validated for that motherboard.

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