Pangea Audio Vulcan Audio Rack (Carbon Fiber with Black Posts) Modular 4- shelf component rack at Crutchfield
4 types of Modular Racks
The “Learning Modular Synthesis” Training Rack | Learning Modular
Modular Colored Metal Floor Rack by A.D. Dekker for Tomado, 1950s, Set of 12 for sale at Pamono
Solidsteel - S2 Series Modular Audio Rack - Music Direct
Amazon.com: MonsterRax 5 Tier Storage Garage Shelving - Tall Metal Modular Shelves or Rack for Storage, Heavy Duty Steel Shelf Organizer for Garage, Or Kitchen Pantry (White, 36" x 18" x 72") :
MODUL-iT ISO Modular Rack System | Mattteo
Nord Modular Rack Desktop / Rackmount Virtual Synthesizer | Reverb