We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Two green DDR4 UDIMM sticks, no heat spreaders, gold contacts, 288 pins

OWC

OWC 2E6D41R8016P 16GB (2x8GB) DDR4 2666MHz CL19 ECC UDIMM 1.2V 1Rx8 288-pin memory upgrade

SKU CH-GVRP-TYX45

16 GB DDR4-2666 ECC UDIMM kit (2 × 8 GB, CL19, 1.2 V) validated for Synology RackStation RS1619xs+ and RS2818RP+

  • Total capacity16 GB (2 × 8 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8

Capacity 16GB (2 x 8GB)

  • 16 GB kit (2 × 8 GB) for Synology RS1619xs+ and RS2818RP+
  • DDR4 2666 MHz CL19 ECC unbuffered UDIMM for data integrity
  • JEDEC-standard 1.2 V modules run cool without heat spreaders
  • Backward compatible with 2133 MHz and 2400 MHz systems
  • 288-pin 1Rx8 design installs easily in supported NAS units

Synology RackStation memory kit

This OWC kit delivers 16 GB of DDR4 ECC UDIMM memory in a matched pair of 8 GB modules. It is validated for Synology RackStation RS1619xs+ and RS2818RP+ systems. The modules run at 2666 MHz with CL19 latency at 1.2 V.

Upgrade from lower-capacity or non-ECC DIMMs

The 16 GB dual-channel kit replaces smaller or single-rank modules to raise total system memory. The jump is worth it when workloads such as virtual machines, container hosts or large file caches exceed the existing capacity and trigger swapping.

DDR4 2666 interface limits

The DDR4 2666 interface caps peak bandwidth at the PC4-21300 rate. The kit is backward compatible with 2133 MHz and 2400 MHz slots, but will operate at the lowest common speed. ECC protection adds single-bit correction without registered buffering overhead.

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 16 GB (2 × 8 GB)
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $6.94 per GB
Cheaper than about 58% 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 nameOWC
Part number2E6D41R8016P
Total capacity16 GB (2 × 8 GB)
Product type288-Pin DDR4 ECC UDIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportYes
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSynology RackstationRS1619xs+
Synology RackstationRS2818RP+

Other versions of this model

5 more in the same range

Questions about this item

Will the 288-pin DDR4 UDIMM fit the memory slots in my Synology RS1619xs+?

Yes, the 288-pin DDR4 ECC UDIMM form factor matches the DIMM slots used in the Synology RS1619xs+ and RS2818RP+.

What is the correct way to seat the modules so the system recognises both 8GB sticks?

Align the notch on each module with the slot key, press down firmly until the side clips click shut on both ends.

Does the lack of a heat spreader mean I should plan to add active cooling later?

No, the modules run at standard 1.2V JEDEC voltage and are designed for passive airflow inside the NAS chassis.

More in Model-Specific Memory Upgrades

Similar items