Dual-Purpose Chassis - Industrial / Home Designed for industrial rackmount or high-end home system usage, which can be placed in vertical or horizontal placements. Distinctive Exterior Distinctive front panel features anti-theft lock design to provide additional security along with one USB Type-C interface. Cooling Capabilities RM42-502 comes pre-installed with 1 x 120mm fan at the front and 1 x 80mm fan at the rear achieving front-to-back directional airflow out of the box, and unlike most rackmounts cases on the market, RM42-502 supports up to 240mm liquid cooling radiators. Anti-Sag Prevention To avoid any unforeseen damages to either the motherboard or the graphics card, RM42-502 comes with an expansion card retainer that keeps your graphics cards in place when moving and to prevent it from sagging. Storage Bays Offers users a wide range of hard drive options including support for two 5.25" drive bays directly compatible with 3.5" or 2.5" drives. Sliding Rail Compatibility Reserved mounting holes for sliding rails which can be easily installed. Can be used with the RMS06-22 rail (sold separately).