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Four green DDR5 UDIMM sticks with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR5 4800 CL40 1.1V UDIMM QNAP TS-H3077AFU memory upgrade

SKU CH-CHD0-JMW87

Adds 128 GB of DDR5-4800 CL40 memory in four 32 GB unbuffered UDIMM modules validated for the QNAP TS-H3077AFU all-flash NAS

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeUnbuffered
  • Rated voltage1.1 V
  • 128 GB capacity across four 32 GB modules
  • DDR5 4800 speed rated at PC5-38400
  • CL40 CAS latency for responsive operation
  • Low 1.1 V voltage reduces power draw
  • Validated for QNAP TS-H3077AFU NAS compatibility

128GB DDR5 4800 UDIMM kit for QNAP TS-H3077AFU

This NEMIX RAM kit delivers 128GB across four 32GB unbuffered DDR5 modules rated at 4800 MT/s with CL40 latency. It is built specifically for the QNAP TS-H3077AFU all-flash NAS and uses 1.1V 288-pin UDIMMs without ECC or heat spreaders.

Suits administrators expanding that NAS

The four-module layout fills every slot in the supported system, so buyers needing only a partial upgrade or requiring ECC error correction should consider other configurations. Systems limited to lower DDR5 speeds or different form factors cannot accept this kit.

4800 MT/s DDR5 speed and CL40 timing

The modules operate at PC5-38400 with a CAS latency of 40, which the target NAS expects for stable operation. Verify that the platform firmware supports this exact data rate before installation.

How it compares

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

Price $1,656.99
Pricier than about 66% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $12.95 per GB
Pricier than about 59% 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 lineQNAP NAS Compatible Series Memory
Model nameQNAP DDR5 4800 MHz Non-ECC Unbuffered UDIMM NAS Memory
Part numberMD38400-328K4
Total capacity128 GB (4 × 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 items128 GB (4 × 32 GB) DDR5 4800 MHz PC5-38400 2Rx8 1.1 V CL40 288-PIN Non-ECC Unbuffered UDIMM KIT

Questions about this item

Which capacity kit should I choose for my QNAP TS-H3077AFU?

This kit provides 128GB total using four 32GB modules, matching the maximum supported configuration for the TS-H3077AFU.

What does DDR5 4800 CL40 mean for real workloads on this NAS?

The modules run at 4800 MT/s with CL40 timing at 1.10V, delivering the rated bandwidth of PC5-38400 for file serving and virtualization.

Does the 288-pin UDIMM interface limit speed or capacity in this system?

The 288-pin DDR5 UDIMM form factor is the native slot type for the TS-H3077AFU, so the 4800 MT/s speed and 128GB capacity are fully supported.

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