3U Short Depth Chassis w/ 3 x 5.25" drive bays - Server Case
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Rack Mountable Server Chassis Case 3U 450MM Short Depth for full size ATX MB
Amazon.com: RackChoice 3u Short Depth rackmount Server Chassis Micro ATX/Mini-itx 2x5.25+5x3.5 Bays Support Standard ATX PSU with Either top or Side Cooling : Electronics
Industrial Computer Rc3450a 3u Rack Mount Chassis/3u Server Case For Cloud Computing Etc. - Industrial Computer & Accessories - AliExpress
New Designed Hotswap 3U 8Bay Compact Stroage Server Chassis 550MM 8 HDD Bays Rack Server Computer Case Support ATX Power Supply - AliExpress
IPC 3U 3098-S - Inter-Tech Elektronik Handels GmbH
3U Rackmount Case, only 15.7'' deep from The Book PC
Industrial Chassis 3U Case 3u Server Rack with USB 3.0 for ATX MB 6*3.5
Amazon.com: 3U Server Chassis - Compact 12" Deep 19" Rackmount ATX Computer Case (Back or Front Rack Mount for Easy Access to Rear Components & Ports) 4 Bay 1x5.25 3x3.5; 4X Full