➀ Prusa has updated its flagship Mk4 printer to the Mk4S, emphasizing print quality and speed improvements. The Mk4S features a 360° deposition cooling system, high-flow deposition nozzle, and improved material handling. ➁ The printer is used for consumer, lab, and print-farm environments, with Prusa's Pro HT90 printer being its first industrial model. ➂ Prusa offers a $99 upgrade kit for Mk4 owners and a new app for iOS and Android for print monitoring and management.