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Two green DDR4 DIMM sticks without heat spreaders

Computer Memory Solutions

Computer Memory Solutions CM2048722400ECCNR 32GB (2x16GB) DDR4 2400 ECC DIMM

SKU CH-Y1Z8-X0Z3X

32 GB kit of two 16 GB DDR4 2400 ECC unregistered DIMMs validated for Synology RackStation RS3618xs and RS4017xs+ systems

  • Total capacity32 GB (2 × 16 GB)
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL17
  • Memory timings17-17-17
  • Rated voltage1.2 V
  • 32 GB dual-channel kit doubles memory bandwidth
  • ECC protection detects and corrects single-bit errors
  • 2400 MHz DDR4 speed rated at PC4-19200
  • Validated for Synology RackStation RS3618xs and RS4017xs+
  • Low 1.2 V operation reduces power draw

Synology RS3618xs Memory Kit

This 32 GB kit contains two 16 GB DDR4 ECC unregistered DIMMs rated at 2400 MHz with CL17 timings. It is built specifically for the Synology RackStation RS3618xs and uses major-brand chips at 1.2 V. The 288-pin modules arrive without heat spreaders.

Upgrading From Lower Capacity

The RS3618xs supports a maximum of 64 GB across four slots, so this kit fills half the bays and doubles a 16 GB base configuration. The jump is worthwhile when virtual machines or container workloads exceed the current memory ceiling. Systems already at 64 GB cannot accept additional modules.

Build Integration Notes

Each stick occupies one 288-pin DDR4 slot and runs at the standard 1.2 V without registration buffers. The unbuffered ECC design works with the platform's native error correction while leaving two slots free for future expansion. No heat spreader means tall CPU coolers will not encounter clearance issues.

How it compares

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

Price $110.99
Cheaper than about 66% 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 $3.47 per GB
Cheaper than about 87% 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 RS3618xs
In the box
Included items2 Memory RAM Sticks

Questions about this item

Will the 288-Pin DDR4 DIMMs fit the four memory slots in my Synology RackStation RS3618xs?

Yes, the kit provides two 288-Pin DDR4 DIMMs that match the four slots in the RS3618xs, giving 32 GB total and leaving two slots free for a future upgrade to 64 GB.

Do I need to install the two 16 GB sticks in specific slots or enable ECC in the DSM BIOS?

Insert each stick until the retention clips click; the RS3618xs detects ECC automatically, so no BIOS changes are required. The common mistake is seating only one side of the module.

If a module fails years from now, how do I get a replacement under the lifetime warranty?

Contact Computer Memory Solutions directly with the model number CM2048722400ECCNR; they provide a limited lifetime warranty when the kit is purchased from them.

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