We need to connect (fiber) a main HQ office to 16 branches for small app communication, and I'm looking for a router (ISR or ASR) with a lot of sfp port (module) for the HQ. I looked for the ASR 1002-HX and it is very expensive.
The throughput is not that high and just need to support maximum of 1 Gbps.
For the branch I looked for the ISR 4221 or 4321, but for the HQ which is best suited an ISR with 24 sfp port or ASR (knowing it is very expensive).
My question: Can an ISR router has a 24 sfp port (if yes, which module is it )?
I don't think the ISR 4000 has a module with 24 SFP ports. You can get 24 or 48 GigabitEthernet port modules with RJ-45 ports, but if you definitely need 24SFP ports, you are indeed looking at something like the ASR9K, which is expensive.
Since you say the throughput is low, why can't you just get a switch and uplink it to a router ?
You mean use the switch to connect the fiber cable and then put a router behind it?
I can then use a sub-interface on the router for each network.
either that, or use fiber to RJ-45 converters. You could then use the SM-X-ES3-24-P module and the ISR4351 or ISR4331.