MS Visio. Custom stencil for create rack diagram - YouTube
Visio Stencils: Design rack 42U with Cisco switch, Sophos firewall, UPS Emerson, Aten KVM and HP server – Techbast
Neo Light Stencil : SMT stencil storage
How To Make an MS Visio Rack Diagram | Cisco Network Topology. Cisco icons, shapes, stencils and symbols | Network Diagramming Software for Design Rack Diagrams | Visio Network Cabinet Stencils