Cisco C9300L-48PF-4X-10A: Why Is It Built for High-Density PoE++ Deployments?

Core Hardware and Key Specifications

The ​​Cisco Catalyst 9300L-48PF-4X-10A​​ is a ​​48-port PoE++ Layer 3 switch​​ designed to deliver ​​740W of total PoE power​​ across 48x 1GBase-T ports, with ​​4x 10G SFP+ uplinks​​ for high-speed aggregation. Built on Cisco’s ​​IOS XE​​ operating system, it supports advanced automation, security, and ​​Cisco UPOE+ (Universal Power Over Ethernet Plus)​​ for devices requiring up to ​​90W per port​​.

High-Power PoE++ Capabilities

• ​​UPOE+ Compliance​​: Supports ​​IEEE 802.3bt​​ for powering devices like ​​pan-tilt-zoom (PTZ) cameras​​, ​​Wi-Fi 6/6E access points​​, and ​​thin clients​​.
• ​​Dynamic Power Allocation​​: Prioritizes power to critical devices during shortages, ensuring uninterrupted operations.

Performance and Scalability

• ​​Switching Capacity​​: 116 Gbps total throughput accommodates heavy traffic from PoE devices and uplinks.
• ​​StackWise-320​​: Merge up to 8 switches into a single logical unit with ​​640 Gbps stacking bandwidth​​, ideal for expanding campus networks.

Security and Network Segmentation

• ​​Cisco TrustSec®​​: Implements macro-segmentation to isolate IoT and OT devices, reducing attack surfaces.
• ​​ETA (Encrypted Traffic Analytics)​​: Detects malicious activity in encrypted data streams without decryption delays.

Deployment Scenarios

Optimized for ​​high-power environments​​, this model suits ​​industrial IoT setups​​, ​​smart hospitals​​, or ​​large-scale retail spaces​​. The ​​740W power budget​​ eliminates the need for external power injectors, while its ​​optional fanless design​​ reduces noise in clinics or offices.

Licensing and Support

• ​​Cisco DNA Licensing​​: Essentials or Advantage tiers unlock features like ​​SD-Access​​ and ​​AI Endpoint Analytics​​.
• ​​Lifetime Warranty​​: Includes 24/7 hardware replacement and technical support for critical failures.

Cost vs. Operational Efficiency

While pricier than traditional PoE switches, the ​​C9300L-48PF-4X-10A​​ consolidates infrastructure by combining data and power delivery. Its ​​10G uplinks​​ future-proof deployments for bandwidth-heavy applications like 4K video surveillance or AR/VR tools.

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Real-World Application Notes

In a recent deployment for a smart factory, this switch powered ​​60+ autonomous robots​​ and ​​150+ sensors​​ without power throttling. The ​​per-port power telemetry​​ in Cisco DNA Center simplified troubleshooting, while ​​seamless StackWise integration​​ allowed scaling from 1 to 5 switches within hours. For teams managing mixed high-power and low-latency workflows, this model strikes a rare balance of flexibility and raw performance.