cisco Catalyst 4500 Catalyst 4503-E
The Cisco Catalyst 4503-E is a compact 3-slot modular enterprise chassis switch engineered for medium campus wiring closets, collapsed core branches, and high-density industrial control rooms. Offering one dedicated supervisor engine slot and two line card payload slots in a 7U frame, the 4503-E delivers up to 104 Gbps per slot backplane capacity and up to 96 Gigabit Ethernet or PoE ports.
Specifications
| Brand | cisco |
|---|---|
| Family | Catalyst 4500 |
| Form factor | modular chassis |
| Released | Nov 2007 |
| End of sale | Oct 2020 |
| End of support | Oct 2025 |
| Chassis slots | 3 |
| Supervisor slots | 1 supervisor slot (Slot 1) |
| Line card slots | 2 payload line card slots (Slots 2 and 3) |
| Chassis height | 7U rack mount |
| Per slot bandwidth | Up to 48 Gbps or 104 Gbps per slot with Supervisor 8-E / 9-E |
| Power supplies | Dual redundant modular power supplies |
Generations
- Next generation: cisco Catalyst 9400 Catalyst 9404R
Check compatibility with Cisco
Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Cisco has tested with the cisco Catalyst 4500 Catalyst 4503-E.
- Compatibility Cisco UCS Hardware Compatibility List
- Compatibility Cisco Optics-to-Device Compatibility Matrix
- Support Cisco Support and Downloads
Equivalent models from other brands
FAQ
Does the 4503-E support redundant supervisors?
No, the 3-slot chassis contains only one supervisor engine slot; dual supervisor redundancy requires the 4507R+E or 4510R+E chassis.
What supervisor engines are compatible with the 4503-E?
It supports Supervisor 6-E, 6L-E, 7-E, 7L-E, 8-E, and 8L-E.
Buying or selling Catalyst 4503-E?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- Cisco Catalyst 4503-E Product Documentation, checked 2026-10-27
- Cisco Catalyst 4503-E Data Sheet and Technical Specifications, checked 2026-10-27