Resin IO (Balena) is a software company based in Seattle that develops tools to deploy and manage fleets of connected Linux devices.
The BeastV3 is a computer cluster designed as a testing and demo platform for the company. It is formed by modular panels, each of which contains 12 Raspberry PI and more than 14 meters of power and data cables that assist them. The system supports up to 40 interconnected panels, which can be easily annexed and removed.
Since it is an open source project, parts are widely available and affordable. Custom components are easy to order and put together.