||10.75 x 14.40 x 1.75 in.
The Catalyst 4000 series switches consist of the Catalyst 4003 switch and the Catalyst 4006 switch. The switches are designed for high-performance, high-density wiring closet applications. A detailed overview of these switches is in the Catalyst 4000 Series Installation Guide. These switches are no longer sold or supported by Cisco, but most switching modules originally created for the Catalyst 4000 function in a Catalyst 4500 or Catalyst 4500 E-Series switch. Catalyst OS and the supervisor engines using it are likewise End of Life (EoL) products.