Known for their utilitarian yet quirky designs, Teenage Engineering is now taking on the once bland category of PC cases with the aptly-named Computer-1. Built out of necessity (they didn't like any available options), it's the fifth iteration of their homemade design but the first to be commercially available. Inside the 1mm aluminum exterior is room for a Mini-ITX motherboard, dual GPU slots, an SFX power supply, and CPU cooler, with a front-mounted 3.5mm audio output. It arrives flat-packed in a build-it-yourself box; for assembly instructions, refer to this PDF file.