Ports 1-4 are standard Gigabit Ethernet ports that support 10/100/1000/2500 Mbps connections.
The Link LED on the left indicates a 10/100 Mbps connection when amber and blue indicates a 1 Gbps connection. For 2.5 Gbps connections, the LED on the right will illuminate white. If neither port LED is illuminated, then the connection is down.
Ports 2 and 3 support 802.3at PoE+ with up to 30W per port and a PoE budget of 40 Watts.
The PoE LEDs are located below ports 2 & 3 with the icon next to them. They will illuminate amber when a device connected to the port is being powered via Ethernet.
The SFP+ Ports support fiber optic and Ethernet transceivers with 1 Gbps, 2.5 Gbps, 5 Gbps, or 10 Gbps connections.
The Link LED on the left will illuminate blue when there is a 1 Gbps, 2.5 Gbps, or 5 Gbps connection, it will illuminate white with a 10 Gbps connection.
The Activity LED on the right flashes blue when there is activity on a 1 Gbps, 2.5 Gbps, or 5 Gbps connection. It will flash white if there is 10 Gbps network activity.
So it seems their devices are running OpenWrt with a heavily modified GUI and proprietary management software.
I like that the Route10 has 2.5Gbit ports with POE, but at this price-point I think the BPi-R4 offers better performance and support (assuming the Route10 could be supported by stock OpenWrt).
Because that's what the MT7988A supports... I agree that it's best to use a switch connected to SFP+ on the R4. That gives you most flexibility for ports/features/price.