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Green bare circuit board DDR4 UDIMM module with black memory chips and gold edge connectors

NEMIX RAM

NEMIX RAM 8GB DDR4 2133 ECC UDIMM Synology Compatible memory upgrade

SKU CH-RX9Y-0826C

Adds 8 GB of DDR4 2133 ECC unbuffered UDIMM memory for compatible Synology NAS systems

  • Total capacity8 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL15
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • ECC protection safeguards data integrity in Synology NAS
  • DDR4 2133 speed matches factory specifications for stable operation
  • Low 1.20 V voltage reduces power draw and heat
  • Single-rank 1Rx8 layout ensures broad motherboard compatibility
  • Rigorously stress-tested modules deliver reliability for mission-critical workloads

8 GB DDR4 ECC UDIMM for Synology NAS

This 8 GB DDR4 ECC unbuffered module is built for Synology RackStation units that require PC4-17000 memory. It targets administrators who need error-correcting RAM to keep file services and virtual machines stable. The single-rank 1Rx8 design fits the vendor-qualified slot layout.

Check slot count and maximum supported capacity

Verify how many UDIMM slots your RackStation model exposes and what total capacity the firmware allows. Confirm the system expects DDR4 2133 unbuffered ECC at 1.2 V and that it accepts 288-pin modules rather than 204-pin SODIMMs. Cross-reference the part number ME17000-818K1 with the hardware compatibility list before ordering.

Sustained workload behaviour with ECC active

Under continuous NAS workloads such as RAID rebuilds, backup streams or container hosting, the ECC circuitry corrects single-bit errors without halting the system. CL15 timing at 2133 MHz delivers steady throughput for multi-user file access. The module lacks a heat spreader, so adequate chassis airflow is required during prolonged heavy use.

How it compares

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

Price $61.99
Cheaper than about 75% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $7.75 per GB
Typical for this category: the median of 20,941 items is $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 lineSynology Compatible Series NAS Memory
Model nameSynology DDR4 2133 MHz ECC Unbuffered UDIMM
Part numberME17000-818K1
Total capacity8 GB
Product type204-Pin DDR3 SODIMM
Performance
Rated speedDDR4 2133 (PC4 17000)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL15
ECC supportYes
Buffer typeUnbuffered
Heat spreaderNo
Memory rank1Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSynology
In the box
Included items8 GB (1 × 8 GB) DDR4 2133 MHz PC4-17000 2Rx8 1.2 V CL15 288-PIN ECC Unbuffered UDIMM

Questions about this item

What comes in the box with the NEMIX RAM 8GB DDR4 2133 ECC UDIMM module?

The package contains one 8GB DDR4 2133MHz PC4-17000 CL15 1.2V ECC unbuffered UDIMM. No cables, tools or additional memory sticks are included.

Which capacity and speed version should I select for a Synology RackStation that requires PC4-17000 CL15 ECC memory?

Choose the 8GB DDR4 2133MHz PC4-17000 CL15 1.2V ECC unbuffered UDIMM (part number ME17000-818K1) to match those specifications exactly.

What does the 2133MHz rating mean once the module is installed in a compatible Synology NAS?

The memory will operate at 2133MHz with CL15 latency at 1.2V, providing ECC error correction for data integrity in supported Synology RackStation models.

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