CHIEFTEC, a world-wide renowned brand for reliable PC chassis and power supplies, today announces the CM-25B-OP as a new model in the Classic Series, which has proven to be a success in the system integration market since its launch in 2019. The CM-25B-OP is based on the chassis of the BM-25B-OP, while adding an additional 5.25" ODD drive and a refreshed front panel design. Built from 0.7 mm SECC and including toolless drive installation kits, the Classic Series is perfect for system builders who value true quality and timelessly elegant design.