If you don't mind you probably should just use the build in /usr/bin/scp, it's better than every perl module I've tried and just works.

Really, even better than Net::OpenSSH? Scripting an external binary is a tricky and brittle thing to do (see e.g. here), and not something I'd recommend if there's a module that already does the task well, otherwise one is just reinventing the wheel.