Is the RKS-02 compatible with all Synology NAS models, or are there specific models it supports?

The RKS-02 is compatible with specific Synology NAS models including the FS series, SA series, 21 series, 20 series, 19 series, 18 series, 17 series, 16 series, 15 series, 14 series, 13 series, 12 series, 11 series, 10 series, and 9 series. It does not support all models.