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Two green DDR4 SODIMM modules with gold contacts, no heat spreaders

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR4 2666 PC4-21300 CL19 2Rx8 1.2V 260-pin SODIMM kit for QNAP TVS-H674T TVS-H874T

SKU CH-WW49-EG5NZ

A 64 GB DDR4 2666 SODIMM kit validated for QNAP TVS-H674T and TVS-H874T NAS systems

  • Capacity64GB (2 x 32GB)
  • SpeedDDR4 2666 (PC4 21300)
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • 64 GB total capacity with two 32 GB modules
  • DDR4 2666 speed rated at PC4-21300 bandwidth
  • CL19 CAS latency at 1.2 V operating voltage
  • 2Rx8 dual-rank 260-pin SODIMM form factor
  • Validated for QNAP TVS-H674T and TVS-H874T NAS systems

QNAP NAS DDR4 SODIMM kit

This 64 GB kit contains two 32 GB DDR4 2666 modules built for QNAP TVS-H674T and TVS-H874T NAS units. It targets administrators who need to expand memory capacity on those specific models. The unbuffered non-ECC design matches the platform requirements. Compatibility is validated for the listed QNAP systems only.

260-pin unbuffered modules without spreaders

Each SODIMM uses a standard 260-pin DDR4 edge connector and operates at 1.20 V with CL19 latency. The low-profile form factor fits tight NAS slots without interfering with neighbouring components. Major OEM DRAM from Samsung, Micron or Hynix is used throughout. No heat spreaders are fitted, so airflow in compact bays remains unrestricted.

64 GB total capacity in a dual-channel pair

The kit delivers 64 GB via two 32 GB ranks of 2Rx8 organisation. This is the maximum supported configuration for the target QNAP models. Builders who need more storage or ECC protection cannot use this kit. Systems requiring registered or higher-density modules must choose different memory.

Punti di forza

  • 64 GB total capacity with two 32 GB modules
  • DDR4 2666 speed rated at PC4-21300 bandwidth
  • CL19 CAS latency at 1.2 V operating voltage
  • 2Rx8 dual-rank 260-pin SODIMM form factor
  • Validated for QNAP TVS-H674T and TVS-H874T NAS systems

Caratteristiche tecniche

BrandNEMIX RAM
SeriesQNAP NAS Compatible Series Memory
ModelQNAP DDR4 2666MHZ Non-ECC Unbuffered SODIMM NAS Memory
Part NumberMS21300-328K2
Capacity64GB (2 x 32GB)
SpeedDDR4 2666 (PC4 21300)
ECCNo
Buffered/RegisteredUnbuffered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemQnap
CAS LatencyCL19
Heat SpreaderNo
Type260-Pin DDR4 SODIMM
Rank2Rx8
FeaturesDDR4 Non-ECC Unbuffered SODIMM Motherboard Compatible
Package Content64GB (2X32GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V CL19 260-PIN Non-ECC Unbuffered SODIMM KIT

Domande su questo articolo

Does the DDR4 2666 PC4-21300 speed limit the NAS to 2666 MT/s even if the board supports faster?

Yes, the modules run at 2666 MT/s (PC4-21300) and the system will clock them at that rate regardless of any higher board capability.

Will the 260-pin SODIMM sticks physically fit the QNAP TVS-H674T and TVS-H874T memory slots?

The kit uses standard 260-pin DDR4 SODIMM form factor, which matches the SO-DIMM slots on both QNAP models.

How are the two 32 GB modules installed, and what step do people often miss?

Power off the NAS, open the chassis, insert each module at an angle until the gold contacts disappear, then press down until the side clips click; the step often missed is fully seating both clips so the module does not sit loose.

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