Router with usb connection along with firmware support

[doom2010]

Yes but the thing is I am getting the router TL-MR3420 with v2.2 hardware in the market. v1 is no more manufactured and v2.2 is not there in supported list of dd-wrt.

^^it can support custom Openwrt by ofmodemsandmen. Check the link http://www.ofmodemsandmen.com/
Thanks to prakash14...