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Green 288-pin DDR4 UDIMM module, no heat spreader

NEMIX RAM

NEMIX RAM 4GB DDR4 2133 PC4-17000 CL15 288-Pin UDIMM Synology Compatible Memory Upgrade

SKU CH-EN20-HHKQC

4 GB DDR4 2133 MHz CL15 1.2 V unbuffered UDIMM validated for Synology NAS

  • Total capacity4 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL15
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • 4 GB capacity lets you expand NAS storage buffers
  • DDR4 2133 MHz speed matches Synology RackStation D4N2133-4G spec
  • CL15 latency keeps data access tight for NAS workloads
  • 20 V operation reduces power draw in always-on systems
  • Major OEM chips from Samsung Micron Hynix ensure module reliability

Synology NAS 4 GB DDR4 module

This 4 GB DDR4 2133 UDIMM is validated for Synology RackStation systems needing a straightforward capacity increase. It targets administrators who want a single stick to expand memory without guessing compatibility.

No heat spreader or extra software included

The package contains only the memory stick itself, so installation relies on the NAS chassis airflow and the system BIOS for timing. There are no LEDs, spreaders or bundled utilities to configure.

Green PCB unbuffered stick

The 288-pin edge connector fits any DDR4 UDIMM slot keyed for 1.2 V operation. Absence of a spreader keeps the module low-profile for tight drive-bay clearances, while the 1Rx8 organisation ensures simple single-rank population.

How it compares

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

Price $29.99
Cheaper than about 85% of the 21,161 comparable items (median $397.99).
Total capacity 4 GB
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $7.50 per GB
Cheaper than about 54% of the 20,941 comparable items (median $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 Non-ECC Unbuffered UDIMM
Part numberMD17000-418K1
Total capacity4 GB
Product type288-Pin DDR4 UDIMM
Performance
Rated speedDDR4 2133 (PC4 17000)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL15
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Memory rank1Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSynology
In the box
Included items4 GB (1 × 4 GB) DDR4 2133 MHz PC4-17000 1Rx8 1.2 V CL15 288-PIN Non-ECC Unbuffered UDIMM

Questions about this item

Will the CL15 timing on this DDR4 2133 module ever need adjustment or replacement?

The CL15 latency is fixed by the module's SPD profile and requires no maintenance; the memory itself has no moving parts and is designed to last the life of the system.

What limit appears first when this 1.20V UDIMM runs sustained workloads in a Synology NAS?

The 2133 MT/s data rate and single-rank 1Rx8 organisation set the bandwidth ceiling before voltage or thermal limits become a factor.

How much heat and power does this 4GB stick produce during all-day operation?

At 1.20V without a heat spreader, the module draws minimal power and runs cool enough for continuous NAS duty in standard chassis airflow.

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