Catalyst 9300 Series Multigigabit UPOE Enterprise Switch
Product Description
The Cisco Systems C9300-48UN-A is a high-performance enterprise access switch from the Catalyst 9300 Series, engineered to support demanding campus networks, high-density wireless environments, and modern IoT deployments.
It provides 48 multigigabit UPOE access ports supporting speeds up to 5G with high-power delivery for advanced devices such as Wi-Fi 6 access points, security cameras, and smart-building infrastructure. With modular uplink support, advanced Layer 3 routing, and StackWise-480 technology, this model delivers scalable performance, redundancy, and long-term investment protection for enterprise networks.
Model Type
Enterprise Layer 3 Multigigabit Access Switch with UPOE, Modular Uplinks, and Advanced Routing
Category
Networking – Enterprise Campus Access Switching
Key Features
48 Multigigabit UPOE Ports — Supports speeds from 100M to 5G with up to 60W per port for high-power devices.
Flexible Modular Uplinks — Supports multiple uplink modules including 1G, 10G, 25G, and 40G for scalable aggregation.
High Switching Performance — Provides switching capacity up to ~640 Gbps with strong forwarding throughput for dense enterprise deployments.
StackWise-480 Technology — Enables stacking up to 8 switches with high-bandwidth redundancy and simplified management.
Advanced Layer 3 Capabilities — Supports enterprise routing protocols such as OSPF, EIGRP, and BGP for scalable network design.
Enhanced Security Features — Includes MACsec encryption, ACLs, segmentation, and policy enforcement for secure access networks.
High PoE Budget — Provides around 645W PoE power with options to scale higher using additional power supplies.
Cisco IOS-XE & Automation Ready — Integrates with enterprise automation, analytics, and SD-Access architectures.
Technical Specs at a Glance
| Specification | Details |
|---|---|
| Model | Cisco C9300-48UN-A |
| Series | Catalyst 9300 |
| Downlink Ports | 48× Multigigabit UPOE (100M/1G/2.5G/5G) |
| Uplink Ports | Modular uplink slot |
| Switching Capacity | ~640 Gbps |
| Forwarding Rate | ~476 Mpps |
| PoE Budget | ~645W (expandable) |
| Stacking | StackWise-480 |
| Software License | Network Advantage |
| Memory | 8 GB DRAM / 16 GB Flash |
| Deployment | Enterprise campus / high-density access |
(Values summarized from vendor-listed specifications.)
Typical Use Cases
High-Density Enterprise Access Layer — Ideal for large offices and campus networks requiring high throughput and reliability.
Wi-Fi 6 / Multigigabit Wireless Deployments — Provides bandwidth and power for next-generation access points.
Smart Buildings & IoT Infrastructure — Supplies both power and connectivity for sensors, cameras, and automation systems.
Enterprise Core-Access Convergence — Advanced routing enables distribution-level functionality in access deployments.
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