There are two lvl3 speed module assemblers, fed by five lvl2 Speed Module assemblers and ten lvl1 Speed Module assemblers.
Each assembler has 12 beacons surrounding it to increase the production speed, and has four lvl3 Speed Modules in each assembler, for a total crafting speed of 11.25 (800%) for each assembler.
Input belts are labeled with constant combinators for easy setup.
The screenshot shows the blueprint tiled five times.
Reddit post with more screenshots: https://www.reddit.com/r/factorio/comments/c9trz9/level_3_speed_module_build_tiled_beaconed_ratio