With the IDS-4215 with the 4FE card, we saw around 65Mbps InLine (IPS) performance using one interface pair (2 interface of the 4FE).
The performance limitation is primarily the NIC on the 4FE card,
We were able to pair the other 2 interfaces of the 4FE card and able to monitor additional traffic on that other pair of interfaces.
Do the overall performance of the sensor if 2 inline pairs are used is higher than 65Mbps.