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Two green DDR4 SODIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 16GB (2x8GB) DDR4 2400 CL17 SODIMM NAS memory upgrade for QNAP TVS-673 TVS-873

SKU CH-XDBZ-M91EV

A 16 GB DDR4 SODIMM kit running at 2400 MHz CL17 1.2 V for QNAP TVS-673 and TVS-873 NAS units

  • Capacity16GB (2 x 8GB)
  • SpeedDDR4 2400 (PC4 19200)
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • 16 GB dual-channel kit boosts NAS responsiveness
  • DDR4 2400 CL17 matches QNAP TVS-673 and TVS-873 specs
  • 2 V low-voltage operation reduces heat and power draw
  • 260-pin SODIMM form factor fits directly into NAS memory slots
  • Major OEM chips from Samsung, Micron or Hynix ensure reliability

QNAP TVS-673 & TVS-873 memory kit

This 16 GB kit contains two 8 GB DDR4 SODIMM modules built for QNAP TVS-673 and TVS-873 NAS units. It suits administrators who need extra capacity for virtual machines or heavy file services on those specific models. Each module runs at 1.2 V without ECC or buffering. The 260-pin form factor matches the factory slots exactly.

Sustained workload behaviour

Modules are stress tested under load before shipping to verify stability during long backup windows or continuous indexing jobs. Unbuffered DDR4 at CL17 latency keeps timing predictable when the NAS serves multiple users simultaneously. The 1Rx8 rank organisation helps the memory controller maintain steady throughput without rank interleaving delays.

DDR4 SODIMM interface limits

The PC4-19200 rating caps bandwidth at the DDR4 2400 transfer rate even though the platform supports DDR4 2666. Non-ECC operation means single-bit errors are not corrected automatically, so critical databases should use application-level checksums. Builders who need ECC protection or higher density per slot must select a different module specification.

Highlights

  • 16 GB dual-channel kit boosts NAS responsiveness
  • DDR4 2400 CL17 matches QNAP TVS-673 and TVS-873 specs
  • 2 V low-voltage operation reduces heat and power draw
  • 260-pin SODIMM form factor fits directly into NAS memory slots
  • Major OEM chips from Samsung, Micron or Hynix ensure reliability

Specifications

BrandNEMIX RAM
SeriesQNAP NAS Compatible Series Memory
ModelQNAP DDR4 2666MHZ ECC Unbuffered SODIMM NAS Memory
Part NumberMS19200-818K2
Capacity16GB (2 x 8GB)
SpeedDDR4 2400 (PC4 19200)
ECCNo
Buffered/RegisteredUnbuffered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemQnap
CAS LatencyCL17
Heat SpreaderNo
Type260-PIN DDR4 SODIMM
Rank1Rx8
FeaturesDDR4 Non-ECC Unbuffered SODIMM Motherboard Compatible
Package Content16GB (2X8GB) DDR4 2400MHZ PC4-19200 2Rx8 1.2V CL17 260-PIN Non-ECC Unbuffered SODIMM KIT

Questions about this item

How much power does the 1.2 V DDR4 kit draw when the QNAP TVS-673 runs 24/7?

Each 8 GB module operates at 1.2 V, the standard DDR4 voltage, keeping power draw low during continuous NAS operation.

Does the TVS-873 need anything beyond the two 260-pin SODIMM slots to use this 16 GB kit?

The TVS-873 provides two DDR4 SODIMM slots; inserting both modules fills the available sockets and no extra hardware is required.

Will the CL17 2400 MHz modules work alongside the original 2666 MHz sticks already in my QNAP?

The NAS will run all installed memory at the lowest common speed, so the 2400 MHz kit will operate stably with existing 2666 MHz modules.

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