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

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR5 4800 CL40 1.1V 2Rx8 UDIMM QNAP TS-H3077AFU memory upgrade

SKU CH-VJ5Y-QCSRM

A 64 GB dual-channel kit of 4800 MHz DDR5 UDIMM memory built for the QNAP TS-H3077AFU all-flash NAS

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeUnbuffered
  • Rated voltage1.1 V
  • 64 GB total capacity in a dual-channel 2 x 32 GB kit
  • DDR5 4800 speed rated at PC5-38400 for fast data throughput
  • Low 1.1 V operating voltage reduces power draw and heat
  • CL40 CAS latency with 2Rx8 organisation for responsive access
  • 288-pin UDIMM form factor validated for QNAP TS-H3077AFU NAS systems

QNAP TS-H3077AFU memory kit

This 64GB kit supplies two 32GB DDR5 4800 UDIMM modules built for the QNAP TS-H3077AFU all-flash NAS. It targets administrators who need to expand system memory for virtualization, container workloads or large ZFS caches. The unbuffered non-ECC design matches the platform's supported memory type.

Sustained-load behaviour

Modules operate at 1.1V with CL40 latency and 2Rx8 organisation, delivering stable throughput during extended file-serving or backup windows. Major OEM Samsung, Micron or Hynix ICs are stress tested under load before shipping, reducing the risk of errors during continuous operation. No heat spreader is fitted, so chassis airflow must handle module cooling.

Decisive specification

The kit is validated only for the QNAP TS-H3077AFU; other NAS models, desktops or servers are not supported. Buyers needing ECC protection, registered DIMMs or a different DDR5 speed grade must select a different part.

How it compares

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

Price $845.99
Pricier than about 59% 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 $13.22 per GB
Pricier than about 59% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineQNAP NAS Compatible Series Memory
Model nameQNAP DDR5 4800 MHz Non-ECC Unbuffered UDIMM NAS Memory
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 systemsQnap
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

Questions about this item

How much power does the 1.1 V DDR5 kit draw when the NAS runs continuously?

Each module runs at 1.1 V, the standard DDR5 voltage, so the kit adds only the memory subsystem's normal load to the QNAP TS-H3077AFU power budget.

What must the NAS already have for this 288-pin kit to install?

The TS-H3077AFU needs free 288-pin DDR5 UDIMM slots; the kit provides two 32 GB modules for a 64 GB total.

Will the CL40 timing work with the original memory still installed?

The kit is validated for the TS-H3077AFU; if the system mixes ranks the controller will settle on a common timing supported by all modules.

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