PC Koubou is a Japanese computer retailer and online shop operated by Unitcom Co., Ltd., serving individual customers, businesses, schools, and public institutions. It offers custom-built and ready-to-ship computers, including iiyama PC models assembled in Japan. Its range covers desktop and laptop computers for everyday use, gaming, creative work, and business, as well as workstations and compact PCs. Gaming products include the LEVEL∞ series, game-recommended systems, and collaboration models. Customers can also shop for PC components, peripherals, DIY kits, used computers, and digital accessories.

The brand emphasizes value, performance, and support before and after purchase. New iiyama PCs include a one-year warranty, with optional three- and four-year plans available. Support is offered by phone and email, with inquiries accepted around the clock, and trained specialists provide assistance at stores across Japan. Customers can also access repair services, purchase advice, trade-in offers, payment options, and delivery services. Through its online store and nationwide retail network, PC Koubou aims to make computers and related services accessible for a wide range of needs.