It consists of 4 stacked units, each with a specially designed Single Board Computer (SBC) based on the Samsung Exynos 5422 octa-core processor that is mounted on an aluminum case which operates as heatsinks. A single 80mm USB-Fan is attached to the back-end, to ensure adequate cooling. You will need the Linux OS (microSD cards sold separately) compatible with the ODROID-XU4. The ODROID-MC1 comes assembled and ready to use as a personal cluster for learning, as well as for doing useful work. This affordable 32-core cluster computer can run Docker Swarm, Build Farm and many other parallel computing applications. ** We recommend 4 - 5V/4A adaptors. Inner diameter is 2.1mm, outer diameter is 5.5mm. Center is Positive and Outer is Negative. The MC1's 4 units consume around 60~70Watts. Docker Swarm The most tedious part in setting up the ODROID-MC1 cluster is to install an OS and software packages needed for running and managing the docker-swarm on each computer node. To expedite the process, you can download an SD card image with everything almost ready to use at https://oph.mdrjr.net/MrDreamBot/. There are still a few steps you have to do to make everything work. The SD card has logins 'root' and 'odroid' already set up. The password for both logins is "odroid:. The Swarm we are building consists of 1 master and 3 worker nodes. https://magazine.odroid.com/article/odroid-mc1-docker-swarmgetting-started-guide/ Build Farm A compile farm is a server farm, a collection of one or more servers, which has been set up to compile computer programs remotely for various reasons. Here is an example guide to create your ow