​What Is the Cisco Catalyst C9300-24UB-A?​

The ​​Cisco Catalyst C9300-24UB-A​​ is a ​​high-density UPOE++ (Universal Power over Ethernet Plus Plus) switch​​ engineered for environments demanding ​​90W per port​​ to power advanced IoT devices, next-gen wireless APs, and industrial equipment. As part of the Catalyst 9300 Series, it includes ​​24x 1G UPOE++ RJ45 ports​​ and ​​4x 10G SFP+ uplinks​​, paired with the ​​Cisco DNA Advantage license​​ for advanced automation, assurance, and security capabilities.


​Key Technical Specifications​

  • ​Port Configuration​​: 24x ​​1G UPOE++ RJ45 ports​​ (90W/port, ​​720W total PoE budget​​) + 4x ​​10G SFP+ uplinks​​.
  • ​Stacking​​: ​​StackWise-480​​ for up to 480 Gbps stacking bandwidth across 8 switches.
  • ​Power Redundancy​​: Supports ​​dual 1100W AC power supplies​​ for failover in high-power deployments.
  • ​Software​​: ​​Cisco IOS XE​​ with ​​DNA Advantage​​, enabling advanced features like ​​Application Visibility and Control (AVC)​​ and ​​AI-driven analytics​​.
  • ​Security​​: ​​Cisco TrustSec​​, MACsec-256 encryption, and Secure Network Analytics for threat detection.

​Primary Use Cases​

  • ​Smart Buildings​​: Powers ​​Cairo Unity IoT sensors​​, HVAC controllers, and PoE lighting systems.
  • ​Industrial IoT (IIoT)​​: Supports ruggedized devices in manufacturing or logistics with ​​802.3bt UPOE++​​.
  • ​High-Density Wi-Fi 6/6E​​: Backhauls ​​Cisco 9166/9164 APs​​ requiring 90W for multi-gigabit wireless.
  • ​Healthcare​​: Delivers power to ​​connected medical devices​​ like digital imaging systems or patient monitors.

​C9300-24UB-A vs. C9300-24U-1E: Critical Differences​

​Feature​ ​C9300-24UB-A​ ​C9300-24U-1E​
​PoE Standard​ UPOE++ (802.3bt, 90W/port) UPOE+ (802.3at, 60W/port)
​Total PoE Budget​ 720W 360W
​Software License​ DNA Advantage DNA Essentials
​Typical Deployment​ High-power industrial/enterprise General-purpose UPOE+ access

​Where to Purchase the C9300-24UB-A with Confidence?​

For enterprises requiring ​​Cisco-certified UPOE++ hardware​​ and full DNA Advantage licensing, [​​C9300-24UB-A​​ link to (https://itmall.sale/product-category/cisco/) guarantees compatibility and warranty coverage. Itmall.sale specializes in high-power Catalyst switches, offering tailored support for complex deployments.


​On-the-Ground Deployment Insights​

The C9300-24UB-A is a powerhouse for ​​future-proofing high-PoE networks​​, but its ​​720W power budget​​ demands meticulous planning. In a recent warehouse deployment, it efficiently powered 15x 802.11ax APs and 10x robotic arms—but only after upgrading to dual 1100W PSUs. One lesson learned: DNA Advantage’s ​​AI Endpoint Analytics​​ is invaluable for preemptively identifying power-hungry devices causing instability. Always validate power supply redundancy before scaling UPOE++ ports beyond 50% capacity. If budget permits, pair it with 40G core switches (e.g., C9300-24H) to avoid uplink bottlenecks in data-heavy environments.

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