Alternative to WS-C4503-E: Better-Value Equivalents in Stock
Comparing the WS-C4503-E (WS-C4503-E - Cisco Catalyst 4503-E 3-Slot Rack-mountable Network Switch Chassis) against alternatives? Pro Disk Network stocks 12 similar Cisco parts that offer comparable performance at different price points. Each option below is in-stock, US-warehoused, and tested-and-certified before ship. Bulk pricing is available on quantities of 5+; B2B procurement can use Net 30 with PO.
About the WS-C4503-E
| SKU | WS-C4503-E |
|---|---|
| Product | WS-C4503-E - Cisco Catalyst 4503-E 3-Slot Rack-mountable Network Switch Chassis |
| Current price | $1,777.26 |
| Stock status | In Stock |
| Detail page | View WS-C4503-E › |
Alternatives to WS-C4503-E
Each part below is currently in our US warehouse, ships same-day for orders before 2pm ET, and includes our 90-day warranty. SKUs link to the full product page with photos, datasheets and B2B quote form.
PWR-C45-4200ACV - Cisco 4200-Watts 100-200V Power Supply for Catalyst 4503 / 4506 Switch
SKU: PWR-C45-4200ACV
Price: $1,128.25
Cisco Line Card Classic - Switch - 6 x 10/100/1000 (PoE) + 6 x shared SFP - plug-in module - refurbished for Catalyst 4503, 4506, 4507R, 4510R
SKU: WS-X4506-GB-T-RF
Price: $1,720.49
WS-C6500-E - Cisco Catalyst 6500 Series 9-Slot 14U Rack-Mountable Switch Fabric Module Chassis
SKU: WS-C6500-E
Price: $547.37
WS-C4507R-E-RF - Cisco Catalyst 4500 7-Slot Line Card/Supervisor Engine Layer 4 Managed Rack-mountable Switch Chassis
SKU: WS-C4507R-E-RF
Price: $5,875.80
CAB-AC-2800W-EU - Cisco 3m 250V Power Cord for Catalyst 4503 / 4506 / 4507R
SKU: CAB-AC-2800W-EU
Price: $85.82
PWR-C45-2800ACV-2 - Cisco 2800-Watts 200-240V Power Supply for Catalyst 4503-E / 4506-E / 4507R-E / 4510R-E / 4507R+E / 4510R+E
SKU: PWR-C45-2800ACV-2
Price: $127.83
Cisco PWR-C45-1000AC/2 100-240V Power Supply for Catalyst 4503 / 4504 / 4506 / 4507R
SKU: PWR-C45-1000AC-2
Price: $158.29
Cisco PWR-C45-1300ACV/2 1300-Watts Power Supply for Catalyst 4503 / 4506 / 4507R / 4510R
SKU: PWR-C45-1300ACV-2
Price: $1,649.75
Cisco PWR-C45-4200ACV/2 4200-Watts AC Dual Input Power Supply for Catalyst 4503-E / 4506-E / 4507R-E / 4510R-E
SKU: PWR-C45-4200ACV-2
Price: $2,476.24
WS-C6509-E-FAN - Cisco 9-Slot Chassis Fan Tray for Catalyst 6509-E Series Switch
SKU: WS-C6509-E-FAN
Price: $118.12
How we pick alternatives
Every recommendation above was selected using these criteria:
- Spec parity — capacity, speed, port count, and form factor matched within a 10% tolerance
- Price spread — alternatives shown across the price range, so you can pick on budget
- Brand mix — both OEM-equivalent and trusted aftermarket, all certified
- Reliability data — preferred parts have failure rates below 1% in our 18-month return tracking
- In stock today — shipping today, not 4-6 weeks from now
Want a side-by-side spec comparison?
We can prepare a written comparison covering throughput, power draw, form factor and validated compatibility. Email sales@prodisknetwork.com or call +1 (407) 205-8454 — most quotes ship within 4 business hours.