Packet Tracer routers 4321 & 4331 SFP modules?

[chrismes]

In packet tracer 8.x there are routers 4321 and 4331 with some modules (serial, switchports) which I can put in.
But there are also SFPs which I can not use, because no module supports these SFPs.
For example for router 2911 there is a module which supports SFPs. First I put in this module and then I can use the SFP in this module.

Are the SFPs for 4321 and 4331 just added by mistake?

Thanks.

[balaji.bandi · Accepted solution]

I am not a PT Expert, but below link help you to resolve :

https://community.cisco.com/t5/optics-and-optical-networking/cisco-packet-tracer-cisco-isr-4321-sfp-module/td-p/3220791

[chrismes]

Thanks for information.