Check the listing for details. Rosewill RSV-R4100U 4U Server Chassis Rackmount Case. Condition: New. Listed at 139.99 USD. Store Feedback Contact Sign up for Newsletter Spacious Chassis: This massive 4U server case has 7 internal 3.5" HDD bays plus room for 2 additional 5.25" devices.Expandable & ATX/CEB Compatible: 7 PCI expansion slots and ATX and CEB motherboard compatibility give you growth options for all of your needs.Quiet Cooling: 3 pre-installed cooling fans provide excellent airflow and heat protection at reduced noise. 1 front 120mm fan and 2 rear 80mm fans ensure your drives and chassis avoid overheating.Desired Features: Front panel LED indicators for power and HDD monitoring allows quick, easy visual assessment. Additional utility with 1 USB 3.0 and 2 USB 2.0 ports and a built-in front panel lock provides extra security for your server case.