C9300-24UXB-E vs. C9300-24UX-E: What’s the Upgrade? UPOE++ and DNA Advantage Licensing



​What Is the Cisco Catalyst C9300-24UXB-E?​

The ​​Cisco Catalyst C9300-24UXB-E​​ is a ​​multi-gigabit UPOE++ (Universal Power over Ethernet Plus Plus) switch​​ built for high-density wireless, IoT, and industrial environments. It combines ​​12x 100M/1G/2.5G/5G/10G Multi-Gigabit RJ45 ports​​ and ​​12x 1G UPOE++ RJ45 ports​​, delivering ​​90W per UPOE++ port​​ alongside ​​4x 10G SFP+ uplinks​​. The “​​B-E​​” designation includes the ​​Cisco DNA Advantage license​​, unlocking advanced automation, AI-driven analytics, and zero-trust security.


​Key Technical Specifications​

  • ​Port Configuration​​:
    • 12x ​​mGig RJ45 ports​​ (supporting 100M to 10G speeds)
    • 12x ​​1G UPOE++ ports​​ (802.3bt, 90W/port, ​​1080W total PoE budget​​)
    • 4x ​​10G SFP+ uplinks​
  • ​Stacking​​: ​​StackWise-480​​ for 480 Gbps stacking bandwidth across 8 switches.
  • ​Power​​: ​​Dual 1100W AC power supplies​​ (recommended for full PoE++ utilization).
  • ​Software​​: ​​Cisco IOS XE​​ with DNA Advantage, enabling ​​AI Endpoint Analytics​​, ​​SD-Access​​, and ​​Encrypted Traffic Analytics (ETA)​​.
  • ​Security​​: ​​MACsec-256​​, Cisco TrustSec, and Secure Network Analytics for real-time threat detection.

​Primary Use Cases​

  • ​Wi-Fi 6E/7 Deployments​​: Powers ​​Cisco 9166/9174 APs​​ with mGig backhaul and 90W UPOE++.
  • ​Smart Factories​​: Supports ​​industrial IoT devices​​ like robotic arms, AGVs, and PoE-powered PLCs.
  • ​Healthcare​​: Backs ​​connected MRI machines​​, infusion pumps, and patient monitoring systems.
  • ​Stadiums/Arenas​​: Delivers power and multi-gig connectivity to IP cameras, digital signage, and concession systems.

​C9300-24UXB-E vs. C9300-24UX-E: Critical Differences​

​Feature​ ​C9300-24UXB-E​ ​C9300-24UX-E​
​PoE Standard​ UPOE++ (90W/port) UPOE (60W/port)
​Total PoE Budget​ 1080W 720W
​Software License​ DNA Advantage DNA Essentials
​Typical Deployment​ High-power industrial/enterprise Mixed mGig/UPOE environments

​Where to Source the C9300-24UXB-E Reliably?​

For enterprises requiring ​​Cisco-certified UPOE++ hardware​​ with DNA Advantage licensing, [​​C9300-24UXB-E​​ link to (https://itmall.sale/product-category/cisco/) offers guaranteed compatibility and warranty coverage. Itmall.sale specializes in high-power Catalyst switches, providing end-to-end support for complex IoT and wireless deployments.


​Deployment Lessons Learned​

The C9300-24UXB-E is a beast in ​​high-demand environments​​, but its ​​1080W PoE++ budget​​ requires meticulous power planning. In a recent smart factory deployment, it powered 10x autonomous robots and 15x Wi-Fi 6E APs—but only after upgrading to dual 1100W PSUs and configuring ​​Cisco EnergyWise​​ for dynamic load balancing. A common oversight: underestimating the heat generated by UPOE++ ports. Ensure adequate cooling and avoid overloading ports in confined spaces. For future-proofing, pair it with ​​40G core switches​​ (e.g., C9300-24H) to prevent uplink congestion in data-heavy setups. Always validate firmware compatibility with UPOE++ devices to avoid negotiation failures.

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