Brand New Alphabet by Rachel Spoon of FontStruct is a free geometric techno display font built from spare, right-angled strokes. Its letters resemble modular frames, with squared curves replaced by crisp corners and broad open breaks. The even stroke weight and low, wide proportions create a stripped-back digital look.
Technology event posters are a particularly good fit, since the open construction recalls circuit diagrams and early computer displays. The same frame-like lettering can shape electronics packaging, game graphics, and magazine section titles, where it can function as part of a technical diagram as well as type.