Synology DS223 vs Synology DS223j

Synology DS223, thanks to double the memory (2 GB against 1 GB), hot-swappable bays, a third USB port and more Surveillance Station camera channels. Synology DS223j wins only on price.

Memory and hot swapping. Synology DS223 ships with 2 GB of DDR4 against 1 GB soldered on Synology DS223j, and its bays can be swapped without powering the unit down, which the DS223j does not support.

Synology DS223 supports up to 20 camera channels. Synology DS223j is licensed for 12. Both run the same Surveillance Station software and share identical RAID and file-sharing features otherwise.

No. Both use the same Realtek ARM processor, so Container Manager is unavailable on either. If self-hosting apps or VMs is the goal, an Intel-based Synology Plus model is the one to look at instead.

Buyers who want the cheapest way into Synology DSM for straightforward file sharing and computer backup, and who do not need hot-swappable drives, extra memory or more than a dozen camera channels.

Buyers who want the same two-bay ARM platform with more headroom: double the memory, bays that hot-swap without downtime, an extra USB port and more Surveillance Station camera channels, for a modest step up in price.