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Green circuit board with black memory chips, no heat spreader, gold edge connector, 288-pin DDR5 UDIMM

NEMIX RAM

NEMIX RAM 32GB DDR5 4800 CL40 2Rx8 ECC UDIMM QNAP TS-H1677AXU-RP

SKU CH-RJBV-1J931

A 32 GB DDR5 ECC UDIMM running at 4800 MT/s with CL40 latency and 1.1 V operation, validated for QNAP TS-H1677AXU-RP NAS systems

  • Total capacity32 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeUnbuffered
  • Rated voltage1.1 V

Capacity 32GB

  • Error-correcting code protects data integrity
  • 4800 MHz DDR5 speed handles demanding NAS workloads
  • 1 V operation reduces power draw and heat
  • 288-pin UDIMM fits QNAP TS-H1677AXU-RP directly
  • 2Rx8 dual-rank layout maximises 32 GB capacity

32GB DDR5 ECC UDIMM for QNAP NAS

This 32GB DDR5 4800 CL40 ECC unbuffered UDIMM is built for the QNAP TS-H1677AXU-RP NAS. It adds 32GB of error-correcting memory to protect data integrity in storage workloads. The module runs at 1.1V and uses a 288-pin DDR5 form factor.

Who should consider this module

Administrators expanding memory in a compatible QNAP NAS will find this part validated for that system. Builders needing registered RDIMMs, non-ECC modules, or a different speed grade should select another product.

Key specification: DDR5 4800 CL40 ECC unbuffered

The memory operates at DDR5 4800 with CAS latency 40 and ECC enabled in an unbuffered layout. This combination determines whether the NAS will accept the module and maintain data integrity.

How it compares

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

Price $617.99
Pricier than about 54% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $19.31 per GB
Pricier than about 65% 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 numberME38400-328K1
Total capacity32 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 items32 GB (1 × 32 GB) DDR5 4800 MHz PC5-38400 2Rx8 1.1 V CL40 288-PIN ECC Unbuffered UDIMM

Other versions of this model

5 more in the same range

Questions about this item

How much power does the 32GB DDR5 4800 CL40 ECC UDIMM draw at its rated 1.1V during continuous operation?

The module operates at 1.1V, the standard voltage for DDR5, so power draw scales with the 4800 MT/s data rate and 2Rx8 organisation rather than exceeding the JEDEC baseline for this density.

Does the QNAP TS-H1677AXU-RP NAS require any specific BIOS setting or firmware version to recognise this 288-pin ECC UDIMM?

The stick is validated for the TS-H1677AXU-RP; installing it in a compatible slot and applying the latest QNAP firmware is sufficient for the system to detect the 32GB capacity and ECC function.

Can I mix this 2Rx8 CL40 module with existing DDR5 4800 memory that has a different rank or latency in the same NAS?

Mixing ranks or CAS latencies at 4800 MT/s is not guaranteed; for stable ECC operation QNAP recommends populating all channels with identical 2Rx8 CL40 modules.

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