the amazon product page you linked says a 5M spool will draw 20A / 100W at 5V.

you said you needed 19 cubes at 1.5M each = 28.5M ~ 6 spools

6 * 20 or 100 = 120A or 600W at 5V

your DMX controller can only support up to 4 channels, at 8A each, so you cannot route all of the power draw through the controller - only the data. You'll have to confirm it can operate in this configuration. You can get two or three of these 5V 300W power supplies and feed the strips separately, but you'll need a common ground among the strips and controllers: https://www.amazon.com/Mean-LRS-350-5-Power-Supply-Signs/dp/B07PDTDKRY

This is a lot of juice. You should separate and fuse each 4-5 meter length, with a 1000uF bypass capacitor as close as possible to where the power lands on each strip section.