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Two green DDR5 UDIMM sticks, no heat spreaders, 288-pin, 64GB kit

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR5 4800 CL40 1.1V UDIMM MSI B650M Project Zero memory upgrade

SKU CH-1G4K-39NWJ

A 64 GB dual-channel kit of two 32 GB DDR5 4800 CL40 UDIMMs at 1.1 V for MSI B650M Project Zero motherboards

  • 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 total capacity from two 32 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • CL40 CAS latency at 1.1 V operating voltage
  • 288-pin UDIMM form factor with 2Rx8 dual-rank organisation
  • Built with major OEM Samsung, Micron or Hynix DRAM chips

Targeted MSI B650M Upgrade

This 64 GB kit contains two 32 GB DDR5 UDIMMs built for the MSI B650M Project Zero motherboard. It suits builders who need a simple capacity increase on that specific platform. Buyers who want ECC error correction or registered modules for server workloads cannot use this non-ECC unbuffered kit.

Low-Voltage DDR5 Operation

The modules run at 1.10 V with a CL40 latency at 4800 MT/s, keeping power draw modest for a desktop memory upgrade. No heat spreader is fitted, so airflow from the CPU cooler or case fans passes directly over the DRAM. Systems that require higher frequencies or tighter timings will not achieve them with this JEDEC-standard kit.

Ready-to-Install Dual-Channel Kit

The package delivers a matched pair of 288-pin 2Rx8 modules, enabling dual-channel operation immediately after seating them in the correct slots. No extra software, drivers or configuration utilities are included or required. Users who need RGB lighting, on-module temperature sensors or XMP profiles will not find those features here.

How it compares

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

Price $967.99
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 $15.12 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 lineMSI Gaming Motherboard Compatible Series Memory
Model nameMSI 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 systemsMSI
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 do I install the 288-pin DDR5 UDIMM modules on the MSI B650M Project Zero, and what step is often missed?

Align the notch on each 32 GB stick with the slot key, press straight down until both retention clips click, then enable the 4800 MT/s profile in the BIOS so the kit runs at its rated speed instead of the default JEDEC setting.

What maintenance or replacement will the 64 GB kit need over time?

No scheduled maintenance is required; the unbuffered non-ECC modules have no heat spreader and no moving parts, so they either run indefinitely or are replaced only if a module fails.

What limit appears first during sustained heavy workloads on this CL40 1.1 V kit?

The CAS 40 latency at 1.1 V is the primary bottleneck; bandwidth scales with the 4800 MT/s data rate, but tight timing headroom is minimal, so latency-sensitive tasks hit that ceiling before thermal or power limits.

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