Full Official English Description – Cisco Catalyst C9300-48UXM-E

1. Product Overview

2. Port Hardware Specifications

• Mixed Multigigabit Downlink Ports (48 total UPOE-enabled RJ45):
  1. 36 × 100M / 1G / 2.5G BASE-T multigigabit ports
  2. 12 × IEEE 802.3bz full mGig ports, auto-negotiable: 100M / 1G / 2.5G / 5G / 10G BASE-T
• PoE Standard: Cisco UPOE compliant with IEEE 802.3bt Class 6, maximum 60W DC power per copper portCisco
• Rear Modular Uplink Bay: 1 hot-swappable network module slot, compatible with SFP+, SFP28, QSFP+ transceivers supporting 10G / 25G / 40G fiber uplink expansion
• Stacking Interfaces: Dedicated rear StackWise-480 stacking ports with 480 Gbps bidirectional stacking bandwidth; supports stacking up to 8 switches as one unified logical switching domain
• Management Interfaces:
  1 × RJ45 serial console port, 1 × USB Type-A console port
  1 × 1G out-of-band management Ethernet port
  1 × USB 3.0 storage port for offline firmware upgrade, log export and local configuration backup
• Onboard Memory & Storage: 8 GB DDR4 DRAM, 16 GB internal flash memory

3. Switching & Forwarding Performance

• Standalone Full-Duplex Switching Capacity: 580 Gbps
• Standalone Line-Rate Forwarding Rate: 431.54 Mpps
• Aggregated Stack Total Bandwidth: Up to 1060 Gbps across full stack
• MAC Address Table Capacity: 32,000 MAC forwarding entries
• IPv4 Routing Table: 32,000 route entries (24,000 direct routes + 8,000 indirect routes)
• IPv6 Routing Table: 16,000 route entries
• Multicast Group Table: 8,000 multicast group entries
• Shared Hardware Packet Buffer: 16MB buffer for burst wireless and video traffic absorption
• Hardware ACL Scale: 5,120 ingress rules + 5,120 egress ACL rules
• Flexible NetFlow Flow Table: 64,000 flow entries
• Jumbo Frame Support: Up to 9198 bytes
• Switched Virtual Interfaces (SVIs): Maximum 1000 SVIs

4. Power & Thermal Architecture

• Power Supply Support: 1 or 2 hot-swappable Platinum-efficiency AC power supplies with OIR (Online Insertion and Removal); factory default ships with single 1100W AC PSU (PWR-C1-1100WAC-P)
• UPOE Power Budget Scaling:
  Single 1100W PSU: 490W total UPOE power allocation
  Dual redundant high-wattage PSUs: Maximum 1590W full UPOE capacity for full 60W per-port endpoint deployment
• StackPower Technology: Cross-stack power resource pooling in ring topology (max 4 stack members), dynamic PoE load balancing and N+1 power redundancy across stack units
• Cooling System: 3 field-replaceable variable-speed hot-swap fans with redundant cooling design, low acoustic noise for office rack deployment
• Universal Input Voltage: 100–240V AC, 50/60Hz mains input

5. Stacking & High Availability Technology

• StackWise-480: 480 Gbps high-speed stacking backplane, sub-50ms traffic convergence during stack member hardware failure
• SSO/NSF: Stateful Switchover and Nonstop Forwarding to eliminate service interruption during stack supervisor role failover
• Mixed Stack Compatibility: Fully inter-stackable with all standard Catalyst 9300 Series switches (T/U/UN/UXM/S copper/fiber models), unified single logical management domain
• Cross-stack EtherChannel, Flexlink+ and Extended Fast Software Upgrade supported for stack-level resiliency

6. Hardware-Accelerated Baseline Security (Network Essentials Feature Set)

• MACsec 256-bit AES hardware link encryption supported on all copper downlinks and fiber uplink ports
• Trustworthy Systems secure boot, runtime integrity verification and digital firmware authenticity validation via Trust Anchor Module
• Endpoint Authentication Suite: IEEE 802.1X, MAB, basic WebAuth captive portal access control
• Layer 2 Threat Mitigation: Dynamic ARP Inspection (DAI), DHCP Snooping, IP Source Guard, BPDU Guard, broadcast/multicast storm suppression
• Secure Management Transport: SSH, HTTPS, SNMPv3 encrypted communication channels
  Key License Limitations: Encrypted Traffic Analytics (ETA), TrustSec SGT microsegmentation, SD-Access fabric architecture, containerized application hosting and ThousandEyes monitoring are locked and require upgrade to Network Advantage (-A) license tier

7. Layer 2 & Layer 3 Protocol Support

Full Layer 2 Feature Set

Restricted Layer 3 Routing Suite (Limited by Essentials License)

8. Software & Cisco DNA Licensing Ecosystem

• Operating System: Cisco IOS XE universal switch image (17.x release train)
• Preinstalled Perpetual License Tier: Cisco DNA Network Essentials
  Core feature scope includes complete Layer 2 switching, lightweight Layer 3 routing, basic telemetry, zero-touch provisioning, standard QoS and baseline DNA Center integration. It excludes ETA malware analytics, TrustSec segmentation, containerized application hosting, ThousandEyes synthetic monitoring and SD-Access fabric architecture functions.
• Supported Management Interfaces:
  Local CLI via console/SSH, embedded web UI, Cisco Catalyst Center (DNA Center), Cisco Prime Infrastructure, Zero-Touch Provisioning (ZTP)
• Programmability: Basic NETCONF/YANG streaming telemetry, limited-function on-box Python guest shell

9. Physical & Environmental Specifications

• Form Factor: 1 Rack Unit (1RU) standard 19-inch EIA rack-mount chassis
• External Dimensions: 445 mm (W) × 564 mm (D) × 44 mm (H) / 17.5 × 22.2 × 1.73 inches
• Chassis Weight (single PSU installed): 9.34 kg (20.59 lbs)
• Operating Ambient Temperature: 0°C ~ +45°C
• Storage Temperature: -40°C ~ +70°C
• Operating Humidity: 5% – 90% non-condensing
• Typical MTBF Rating: 202,160 hours under standard factory operating conditions
• Compliance Certifications: UL, CSA, CE, FCC Class A, ICES-003, RoHS, TAA compliant

10. Model Naming Breakdown

• C9300: Base standard Catalyst 9300 stackable enterprise switching platform (StackWise-480 non-X series)
• 48UXM: 48-port mixed-speed mGig UPOE chassis: 36×2.5G + 12×10G multigigabit RJ45 ports, modular rear uplink bay, max 60W UPOE per port
• E: Pre-activated Cisco DNA Network Essentials perpetual baseline license tier

11. Typical Deployment Scenarios

1. Mid-density enterprise campus floor access mixing standard 2.5G office PCs with high-speed Wi-Fi 6/6E APs and 10G video conference endpoints
2. Medium-scale IP surveillance aggregation combining regular cameras and high-bandwidth 10G 4K PTZ cameras requiring 60W UPOE power
3. Modern hybrid workspaces with mixed IoT sensors, digital signage and medium-throughput wired workstations
4. Small-to-medium branch office stacking deployments relying only on basic Layer 3 connectivity without fabric segmentation
5. Cost-optimized entry-level wired access layer without demand for advanced threat analytics or SD-Access fabric

Key Distinction Note

• -E (Network Essentials): On-prem DNA Center managed, baseline perpetual license with limited Layer 3 routing and no advanced security/fabric features, lower upfront cost
• -A (Network Advantage): On-prem DNA Center managed, full-feature perpetual license with advanced routing, ETA analytics and SD-Access fabric support
• -M (Meraki Cloud-Managed): Cloud subscription-based orchestration, split Meraki Enterprise/Advanced feature tiers without Cisco DNA perpetual licenses