Trusted by the Highest-Stakes Buyers
Federal agencies and Fortune 500 operations source through ORM Systems.
US Government & Defense
Enterprise Clients
Featured Deal
Hand-picked by our procurement team for standout value. This unit is offered at our sharpest price on current stock, verified against live market rates.
Name:
Ready to Ship
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
$995.00
$824.0017.2% off
Quantity:
3 Year Extended Warranty
Same-day Shipping
30-Day Money Back Guarantee
Shipping:
Payment:
3 Year Extended Warranty
Same-day Shipping
30-Day Money Back Guarantee
Need Additional Discount on Product?
Request a quote below - Get Exclusive Pricing and Support.
Shipping:
Payment:
WS-C4503-E
Cat4500 E-Series 3-Slot Chassis, fan, no ps
Trusted by the Highest-Stakes Buyers
Federal agencies and Fortune 500 operations source through ORM Systems.
US Government & Defense




Enterprise Clients
Built Global. Stocked Local.
Regional teams and 25+ distribution partners keep stock near you and accountability in your time zone.
Buyer Protection on Every Order
Pay by PayPal or Revolut with full chargeback rights. Order on PO terms, Net-30 for government.
Verified By Federal Bodies
Every registration we claim is public record — check our federal contractor status yourself before you spend a dollar.
Since 2016, Enterprise-Trusted
Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
WS-C4503-E is a high-performance switch engineered with a modular design that delivers robust architecture, versatile power options, and an extensive range of port configurations. It is built to support diverse deployment scenarios with redundant power supplies and multiple Ethernet interfaces, ensuring high performance and reliability in demanding enterprise and data center environments.
WS-C4503-E features advanced stacking capabilities that enable seamless scalability and simplified network management. Ideal for modern networks, this switch is optimized for high throughput and low latency, making it suitable for critical applications, campus backbones, and high-density office deployments.
WS-C4503-E price is $824.00, a 17.2% saving from the Cisco list price of $995.00. WS-C4503-E is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for WS-C4503-E for additional pricing. Browse the full Catalyst 4500 Switches series or explore all Cisco products.
Mon–Fri: [09:00-16:00]
Avg. response under 30 mins
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Flash Memory | 64 MB | 64 MB | 256 MB | 64 MB | 64 MB |
| Form Factor | Rack-mount | Chassis | Rack-mount | Chassis | Rack-mount |
| IOS | IP Services | IP Services | IP Services | IP Services | LAN Base |
| Interface Ports | 10/100/1000 | 10/100 | 10/100 | 10/100/1000 | 10/100/1000 |
| Layer Supported | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 3 | Layer 2 / Layer 3 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | WS-C4503-E | WS-C4507R+E | C1-C4500X-32SFP+ | WS-C4510R-E | WS-C4503 |
| Media Type Supported | Twisted Pair / Fiber / Combo | Twisted Pair / Fiber / Combo | Fiber | Combo | Combo |
| Memory | 256 MB | 256 MB | 512 MB | 256 MB | 256 MB |
| POE Support | Non POE | Non POE | Non POE | Non POE | Non POE |
| Power Source | Redundant Power Supply / AC Power Supply | Redundant Power Supply / AC Power Supply | Redundant Power Supply / AC Power Supply | Redundant Power Supply | Redundant Power Supply / AC Power Supply |
| Product Name | Cisco Catalyst WS-C4503-E Switch | Cisco Catalyst 4507R+E Chassis Switch | C1-C4500X-32SFP+ Ethernet Switch | Cisco Catalyst 4510R-E Chassis Switch | Cisco Catalyst WS-C4503 Switching Platform |
| Product Type | Switch | Switch | Switch | Switch | Switch |
| Rack Units | 2 RU | 4 RU | 1 RU | 4 RU | 1 RU |
| Redundant Power Supply Supported | Yes | Yes | Yes | Yes | Yes |
| Switching Capacity | 56 Gbps | 176 Gbps | 640 Gbps | 480 Gbps | 128 Gbps |
| Uplink Configuration | 1G / 10G | 1G | 10G | 10G | 1G |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Catalyst 4503 E-Series 3-slot chassis is reliable, easy to maintain, and ideal for medium-scale enterprise deployments.
Stable performance with professional-grade airflow and fan design.
Durable and integrates easily into existing network infrastructure.
Reliable solution for critical backbone networks.
Professional-grade chassis with minimal downtime and high reliability.
The WS-C4503-E is an enterprise-class modular chassis with three line-card slots, an integrated fan tray, and no power supplies, designed for mid-density campus and branch deployments.
The WS-C4503-E supports three full-width line-card slots for Supervisor and service modules to deliver Layer 2/3 switching and advanced services.
No, the WS-C4503-E ships without power supplies; you must order compatible AC or DC power-supply modules separately for operation.
The chassis includes a front-to-back, hot-swappable fan tray that provides redundant airflow and intelligent fan speed control.
The WS-C4503-E supports Supervisor Engine 6-E and Supervisor Engine 6L-E, enabling up to 160 Gbps throughput and advanced feature sets.
Yes, two power-supply modules can be installed in the WS-C4503-E’s side bays to achieve N+1 redundancy.
With Supervisor Engine 6-E, the WS-C4503-E delivers up to 160 million packets per second (Mpps) and 160 Gbps of switching capacity.
The chassis measures 3.5” H x 17.5” W x 15.8” D and weighs approximately 35 lbs (15.9 kg) without modules or power supplies.
The WS-C4503-E supports all Cisco Catalyst 4500 E-Series line cards, including Ethernet, PoE+, digital-signal, and service modules.
Slide the supervisor into the front slot rails, secure the captive screws, connect the management and console cables, and power up the chassis.
The chassis operates in 0–40 °C ambient temperature with front-to-back airflow and meets standard data-center humidity and altitude specifications.
Yes, it uses Cisco IOS Software with Universal, IP Base, and IP Services license tiers to enable specific Layer 2/3 and advanced features.
The empty WS-C4503-E chassis consumes approximately 100 W when powered, excluding supervisor engines and line cards.
Cisco provides a Limited Lifetime Hardware Warranty for the WS-C4503-E and offers SMARTnet® support for software updates and advanced replacement.
Refer to the Cisco Catalyst 4500 E-Series data sheet for part numbers and order compatible line cards, supervisor engines, power modules, and accessories.