Logitech Wireless Keyboard + Trackpad
$29.95
Wireless plug-and-play keyboard with integrated touchpad for total control of your Hackerbot without cords getting in the way.
Most things can be done over Wi-Fi via SSH or VNC. However, sometimes it can be helpful to plug directly into the Raspberry Pi, and we have found that this keyboard/trackpad combo, coupled with the 7" screen (sold separately), is the easiest way to do that.