19 inch rack mount 3U for 12x RASPBERRY Pis 1-4B(+) - MyElectronics
Amazon.com: NavePoint 3U 19 Inch Vertical Wall Mount Rack Wall Mountable Server Rack w/Hardware Black : Electronics
Amazon.com: 3U Locking Rack Drawer by AxcessAbles | 15" Deep Secured Metal Server Rack Mount Storage Drawer | 45lb Capacity | Compatible with 19-Inch Rack-mount Cases, Audio Video Equipment Cabinets (RKDRAWER3U) :
Rack Cabinet 19" 3U, 180mm Black | Getic
19" Rack Mount 3U Locking Drawer Pro Audio DJ Server Rack Lock Storage Cabinet - Walmart.com