See 'WikiDevi' @ the Internet Archive (MW XML, Files, Images)
upgraded MW to 1.30 - maybe things are slightly less broken
802.11ac Wave 2 Dual-Radio Unified Pro Access Point
- ZyXEL WAC6303D-S: 802.11ac Wave 2 Dual-Radio Unified Pro Access Point
- ZyXEL NWA1123-AC SHD: 802.11ac Wave 2 Dual-Radio Nebula Cloud Managed Access Point
A "Product Equality Declaration" document declares that the differences between these two devices under FCC ID I88WAC6303D-S and devices covered under the I88NWA5123-ACHD entry are the latter lacks Bluetooth and they use different Wi-Fi antennas.
This device was under short-term confidentiality, but that expired 05/17/2018.