RackChoice 3u Rackmount Server Chassis with 2x5.25+1x3.5 Front Bays ATX/mATX/Mini-itx Support - Newegg.com
GHI-171 - 1U Rackmount Chassis for Dual Mini-ITX M/B - Miller Technologies
Amazon.com: RackChoice MicroATX/Mini-ITX 2U Rackmount Server Chassis max 9x3.5 Bay / USB3.0 with 2.0 Adapter Support ATX PSU Either top or Side Cooling Depth 17.7" : Electronics
Server case rackmount chassis 19 inch IPC mini-ITX micro-ATX 2U 1x5.25 inch 5x3.5 inch depth 400mm - Cablematic
19 Inch 1u Short Rack-mounted Server Chassis Support Mini-itx Motherboard 300mm Depth - Computer Cases & Towers - AliExpress
Completed my first SFF PC build inside a new 2U Mini ITX rackmount case! : r/sffpc