Rosewill RSV-R4012 4U Rackmount Server Chassis — Full-ATX & PCIe Compatible, 12 x 3.5" Drive Bays, 2x120mm + 2x80mm PWM Fans, USB 3.2 Type-C

Professional 4U chassis built for heavy-duty builds: the Rosewill RSV-R4012 accepts full-size ATX motherboards and accommodates large CPU coolers and long PCIe expansion cards for high-performance servers and workstations. Storage-focused design: fits up to twelve 3.5" HDDs or SSDs, enabling petabyte-scale capacity for media servers, archival systems, and enterprise backup deployments. Purposeful airflow engineering: two 120mm PWM fans, supplemented by two 80mm PWM fans, establish a directed cooling path inside the roomy 4U interior to keep high-wattage components cool and stable under sustained load. Front I/O convenience: a front-panel USB 3.2 Type-C port provides up to 10 Gbps transfer speeds for rapid backups and fast connection to modern external drives. The RSV-R4012 combines expandability, drive density, and efficient cooling in a single rackmount platform ideal for demanding storage and compute applications.