It all depends on how the traffic will be used.
Copying the files to and from several ports can be accomplished with a switch. This would be non-blocking and all ports could be used at the same time without slowdown.
Routing several Gigabits you are looking at a Core Cloud Router, a bit slower but still good enough (it all depends on features and bandwidth) might be a 1100AHx2.
If you wish both (I predict this is the case from what you described) you might want to pair a CCR1009 with a CRS226. You can interlink them with a 10Gbps DAC cable.
This will give you 24Ports in a switch and you can use VLAN's with all the routing taking place on the CCR1009. A very powerful setup capable of easily routing and NAT'ting multiple Gigabits without problem. The 10Gbps DAC cables only cost about ~50 dollars so are a quite cheap way to connect equipment together.
p.s. Depending on your needs to CRS226 might be able to facilitate your subnet/routing needs in hardware. If that is the case and no NAT, filters, queues, etc. are needed, the CRS226 alone might be sufficient.
thanks for reply...
I don't want to rely only on CRS226 because there will be two subnets communicating to each other which means it will need to be routed. NAT, firewall, queue will be only applied for internet and for streaming (unicast video streaming device). Now, the question is... will I get ports from CRS226 in CCR1009 or I have to setup VLAN in CRS226? How exactly they are connected? Can You suggest which SFP modules should I use for this?
And, YES... Can I, BTW, attach an external USB HDD to CCR1009's port in order to use for built in FTP?