Yes, the C7200s support online insertion and removal (OIR) of port adapters that are of the same type (ie., same part/model number). I have done this on several occassions on C7206VXR routers without any issues. I've had luck inserting a new port adapter with power to the chassis as well. However, this requires a reload for the proper microcode to be loaded to support the interface.
You should also be aware that the 7206 chassis has a split mid-plane requiring certain considerations when installing additional interface hardware. There's plenty of documentation on the Cisco website...an excellent tool!
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...