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Two green DDR4 DIMM sticks, no heat spreaders

Computer Memory Solutions

Computer Memory Solutions 32GB (2x16GB) DDR4 2400 ECC DIMM memory upgrade Synology RS2418+ D29

SKU CH-NPH8-ZGQ17

32 GB kit of two 16 GB DDR4 2400 ECC unregistered DIMMs for Synology RackStation RS2418+ and RS2418RP+

  • Total capacity32 GB (2 × 16 GB)
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL17
  • Memory timings17-17-17
  • Rated voltage1.2 V
  • ECC protection guards data integrity on Synology RS2418+/RS2418RP+
  • 32 GB kit (2 × 16 GB) expands NAS to 64 GB maximum
  • DDR4 2400 MHz CL17 timing keeps throughput steady
  • Unregistered 288-pin DIMMs install directly in four memory slots
  • 2 V low-voltage operation reduces heat in rack chassis

Synology RS2418+ 32GB DDR4 ECC kit

This 32GB kit contains two 16GB DDR4 ECC unregistered DIMMs built for Synology RackStation RS2418+ and RS2418RP+ systems. It targets administrators who need to expand NAS memory for virtualization or heavy multi-user workloads. The modules run at 2400MHz with CL17 timings at 1.2V.

DDR4 2400 ECC unregistered ceiling

The platform accepts DDR4 2400 ECC unregistered DIMMs up to 64GB total across four slots, so this kit fills half the maximum capacity. Faster modules will downclock to 2400MHz, and registered or load-reduced DIMMs are not supported by the memory controller. Mixing non-ECC sticks disables error correction across the channel.

2Rx8 16GB density per slot

Each 16GB module uses a 2Rx8 organisation, which matches the density the RS2418+ memory controller expects for full-speed operation. Installing 32GB single-rank or 8GB dual-rank sticks instead can reduce bandwidth or prevent the system from posting. This kit guarantees the correct rank structure for the validated platform.

How it compares

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

Price $203.99
Cheaper than about 58% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB (2 × 16 GB)
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $6.37 per GB
Cheaper than about 62% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM2048722400ECCNR
Total capacity32 GB (2 × 16 GB)
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2400 (PC4 19200)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL17
Memory timings17-17-17
ECC supportYes
Buffer typeUnregistered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSynology RackStation RS2418+/RS2418RP+
In the box
Included items2 Memory RAM Sticks

Questions about this item

Should I pick the 32 GB kit or fill all four slots to reach 64 GB?

The RS2418+ supports up to 64 GB across four slots; this 32 GB kit uses two 16 GB modules leaving two slots free for a future upgrade.

What does the 2400 MHz rating mean once the modules are installed in the RS2418+?

The system will run the memory at 2400 MHz with CL17 timings at 1.2 V, delivering the rated DDR4-19200 bandwidth.

Is this DDR4 ECC DIMM registered or unregistered, and does that matter for the RS2418+?

These are unregistered ECC DIMMs, which is the type the RS2418+ requires; registered modules would not be compatible.

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