The “19 inch rack”, you need to know about server racks. Server racks are open metal frames or enclosures that can store multiple electronic devices
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I have a small home and no room for racks, so vertical was the way to go. : r/homelab
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StarTech.com 4-Post 32U Server Rack Cabinet, 19 Data Rack Cabinet for Computer / IT Equipment, Home Network Rack, Half - RK3236BKF - Racks & Cabinets
Why are 19-in. racks that size? - EDN
What Is A 19 Inch Rack? Why is It So Important To Consider Before Getting A Server Rack? - Raising Electronics
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Raising Electronics
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