A printer or NAS drive perhaps? Maybe if you explain what you're wanting to do. You can certainly connect an Ethernet cable to your NIC jack and to another device. To get them working together, they both need IP addresses which you will probably need to do statically.
My laptop is hooked up to our office lan wirelessly. I want to connect an ethernet device (not wireless but IP addressing fully configurable) to my laptop so that i can then see the device elsewhere in my office. Is this possible? I have been playing with IP addresses with no luck so far.