This guide is out of date. This post describes mining Sia with a desktop graphics card (GPU), but custom mining hardware is now available for Sia. The custom hardware has made Sia GPU mining non-viable. This guide will still work, but you may never reach payout, even with a high-end GPU. Overview Sia is a decentralized, peer-to-peer network for buying and selling computer storage space. Users pay for transactions within Sia using a cryptocurrency called Siacoin.