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Two green circuit boards with black chips, no heat spreader, 288-pin DDR5 ECC UDIMM kit

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR5 4800 ECC UDIMM memory upgrade for QNAP TS-H1677AXU-RP

SKU CH-03GW-W7ZKJ

64 GB dual-channel DDR5 ECC UDIMM kit running at 4800 MHz with CL40 latency for the QNAP TS-H1677AXU-RP 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

Capacity 64GB 2X32GB

  • Validated for QNAP TS-H1677AXU-RP NAS compatibility
  • ECC protection maintains data integrity under load
  • 64GB dual-channel kit expands memory capacity
  • 4800MHz DDR5 speed accelerates workload throughput
  • 10V operation reduces system power draw

NEMIX RAM 64GB DDR5 4800 ECC UDIMM Kit

This 64GB kit contains two 32GB DDR5 4800 modules built to PC5-38400 specifications. It targets IT professionals and NAS administrators who need error-correcting memory for the QNAP TS-H1677AXU-RP platform. Each module runs at 1.1V with CL40 latency and uses a 2Rx8 organisation for stable operation under sustained workloads.

QNAP TS-H1677AXU-RP NAS Memory Upgrade

The kit suits buyers who must add 64GB of ECC unbuffered DDR5 to a compatible QNAP NAS and want factory-tested modules from a specialist memory supplier. It is not for buyers who need registered or load-reduced DIMMs, nor for systems that require a heat spreader on every module. The unbuffered design and absence of a spreader mean the memory connects directly to the board without additional cooling hardware.

288-Pin DDR5 ECC UDIMM 1.1V CL40 Specification

The single specification that decides fitment is the 288-pin DDR5 ECC unbuffered UDIMM form factor running at 1.1V with CL40 timing. Only systems that accept this exact module type, voltage and latency will recognise the full 64GB capacity at 4800MT/s. Verify the QNAP TS-H1677AXU-RP motherboard manual before purchase.

How it compares

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

Price $1,186.99
Pricier than about 62% 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 $18.55 per GB
Pricier than about 64% 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 ECC Unbuffered UDIMM NAS Memory
Part numberME38400-328K2
Total capacity64 GB (2 × 32 GB)
Product type288-Pin DDR5 ECC UDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
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 ECC Unbuffered UDIMM KIT

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Questions about this item

Does DDR5 4800 PC5-38400 set the maximum data rate the QNAP TS-H1677AXU-RP can use?

The kit is rated at 4800 MT/s with a PC5-38400 designation; the NAS will operate the modules at the highest speed its memory controller supports.

What physical slot and module height does the 288-pin 32GB UDIMM require in the TS-H1677AXU-RP?

Each module uses a standard 288-pin DDR5 UDIMM form factor without a heat spreader, so it fits the NAS DIMM slots without clearance issues.

What is the correct installation sequence for the two 32GB sticks, and which step is often missed?

Power off the NAS, open the chassis, insert both modules firmly until the latches click, then power on and verify 64GB is recognised in the QTS firmware.

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