A keyboard and a mouse are input devices commonly connected to a computer, either through cables or wirelessly. You can buy a replacement for a damaged peripheral on an online auction, or find one you like better than the one you currently have. For example, some keyboards have an ergonomic layout, while some mice let your hand rest vertically to reduce strain. Note that in order to use a wireless mouse and/or keyboard, you may need to plug an included adapter into one of your computer’s USB ports. Manufacturers include Microsoft, Logitech, Evoluent, Kensington, Dell, and Razer. New auction items show up often on HiBid, so stop back later if you don’t see something you like.