I have a server power supply that I'd like to use for a project but it has these unusual connectors on the back. What is the best connectors to use? I've also attached a photo of what it normally connects in to.

[![psu connectors](https://i.stack.imgur.com/c0yj9.jpg)](https://i.stack.imgur.com/c0yj9.jpg)

[![psu inserts into](https://i.stack.imgur.com/ZRjj9.jpg)](https://i.stack.imgur.com/ZRjj9.jpg)