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Two green DDR5 UDIMM sticks without heat spreaders

NEMIX RAM

NEMIX RAM 64GB (2×32GB) DDR5 4800 CL40 1.1V 2Rx8 UDIMM SuperMicro memory upgrade

SKU CH-D7V2-V3D5Q

A 64 GB dual-channel DDR5 kit with two 32 GB UDIMM modules running at 4800 MT/s CL40 and 1.1 V, validated for Supermicro workstations

  • 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

  • 64GB dual-channel capacity speeds up heavy workloads
  • DDR5 4800 MT/s bandwidth feeds modern Supermicro workstations
  • CL40 latency at 1.1 V balances responsiveness with efficiency
  • 2Rx8 288-pin UDIMM layout fits supported Supermicro boards
  • Major OEM Samsung Micron Hynix chips ensure reliable operation

64GB DDR5 Kit for SuperMicro Workstations

This 64GB kit contains two 32GB DDR5 4800 UDIMM modules built for SuperMicro desktop and SuperWorkstation systems including the SYS-531AD-I and C9Z790-CG. It targets IT professionals and enthusiasts who need validated, non-ECC memory for compatible platforms.

Non-ECC Unbuffered Design for Direct Compatibility

The modules are non-ECC and unbuffered, matching the electrical requirements of the specified SuperMicro motherboards without registered or error-correcting overhead. Major OEM chips from Samsung, Micron or Hynix are used and each kit is stress tested under load before shipping.

Low-Profile 288-Pin UDIMM Build

A 1.10V operating voltage and CL40 latency define the electrical profile, while the 2Rx8 organisation fits the 288-pin DDR5 slot standard. No heat spreader is fitted, so clearance is minimal and installation follows the motherboard manual in minutes.

How it compares

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

Price $902.99
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 $14.11 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 lineSuperMicro Server/Workstation Compatible Series Memory
Model nameSuperMicro 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 systemsSupermicro
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

Will the 2Rx8 DDR5 modules need any firmware updates or re-seating after the first year of continuous operation?

No firmware updates are required for these UDIMMs; they are validated at 4800 MT/s and 1.10 V and retain their JEDEC profile for the life of the module.

Does the CL40 latency at 4800 MT/s become the bottleneck before the 64 GB capacity is fully utilised in sustained workloads?

At 4800 MT/s the CL40 timing sets the access latency floor; once the working set exceeds cache, that latency is the first limit reached under sustained load.

With no heat spreader on the 288-pin sticks, how hot do they run and how much power do they draw during all-day operation?

Operating at 1.10 V, each 32 GB module draws minimal power and runs within JEDEC thermal limits without a spreader, so temperatures stay low even under continuous use.

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