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Four green DDR5 UDIMM sticks, no heat spreaders, 288 pins each

NEMIX RAM

NEMIX RAM 64GB (4×16GB) DDR5 4800 CL40 1.1V UDIMM memory upgrade

SKU CH-9MJ2-1GQCH

A 64 GB DDR5 kit of four 16 GB UDIMM modules at 4800 MT/s, CL40, 1.1 V for GIGABYTE B650 Eagle AX motherboards

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeUnbuffered
  • Rated voltage1.1 V

Capacity 64GB 4X16GB

  • 64 GB total capacity with four 16 GB modules
  • DDR5 4800 MT/s speed rated at PC5-38400 bandwidth
  • CL40 CAS latency at 1.1 V operating voltage
  • 288-pin unbuffered non-ECC UDIMM form factor
  • Validated for Gigabyte B650 Eagle AX AM5 motherboard

DDR5 4800 UDIMM kit for Gigabyte B650 Eagle AX

This 64GB kit contains four 16GB DDR5 4800 UDIMM modules that run at 1.1V with CL40 timing. The memory is non-ECC and unbuffered, built with major OEM chips from Samsung, Micron or Hynix. It is designed specifically for the Gigabyte B650 Eagle AX AM5 motherboard.

Suits builders upgrading that exact Gigabyte B650

If your system uses a different motherboard or requires ECC, registered modules or a different DDR5 speed, this kit will not match those requirements. Buyers who need heat spreaders on every module should also look elsewhere.

No heat spreaders or extra software are included

The package delivers only the four UDIMM modules themselves. Without spreaders the sticks sit lower in tight slots, and the absence of bundled utilities means configuration relies entirely on the motherboard BIOS.

How it compares

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

Price $685.99
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 $10.72 per GB
Pricier than about 55% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineGigabyte Gaming Motherboard Compatible Series Memory
Model nameGigabyte 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 systemsGIGABYTE
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

Other versions of this model

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Questions about this item

Does my Gigabyte B650 Eagle AX motherboard need four free 288-pin DDR5 slots for this 64 GB kit?

Yes, the kit contains four 16 GB UDIMMs that each occupy one 288-pin DDR5 slot on the B650 Eagle AX.

Can I keep my existing DDR5 4800 CL40 1.1 V modules and add this kit without changing BIOS settings?

Matching speed, latency and voltage means the board will usually train all modules at 4800 MT/s CL40 1.1 V automatically.

How do I confirm the system is running the full 64 GB at DDR5 4800 CL40 after installation?

Open Task Manager or BIOS and verify 64 GB detected, speed showing 4800 MT/s and CAS latency at 40.

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