The Ubiquiti UF-WiFi-US UISP Fiber WiFi GPON is a GPON Customer Premise Equipment (CPE) and router designed by Ubiquiti Networks. This device supports the GPON standard for fiber (2.5Gbps / 1.5Gbps), but as it only has 1Gbps ethernet ports, cannot support connections larger than 1Gbps. This MUST be used with an OLT (Optical Line Terminal), such as the UF-OLT or UF-OLT4 for the feed end.
These are the original Wifi units (more reliable than the newer Wifi6 units); They are old stock left over from a job, boxes never opened, still sealed!