Amazon.com: Rosewill 4U Server Chassis 11 Bay Server Case 8X 3.5 + 3X 5.25 HDD, E-ATX, Rackmount Server Case, Include Front 5X 120mm Fans Rear 2X 80mm Fans Metal Rack Mount Computer
4U rackmount server chassis with 6x 5.25" drive bays, 4 x 3.5",2X2.5 in the bottom, 1 x 2.5(support up to 9.5mm) or 1xSlim ODD(12.7mm), support CEB M/B, USB 3.1 Gen 1 Type