Cisco Catalyst C9300-48UX-E Full Official English Description
1. Product Brief Overview
The Cisco Catalyst C9300-48UX-E is a 1 rack-unit (1RU) stackable enterprise Multigigabit access switch belonging to the Cisco Catalyst 9300 Series, pre-loaded with the perpetual Network Essentials software license tier. It carries identical physical hardware to the C9300-48UX-A, featuring 48 Multigigabit UPOE RJ45 downlink ports plus fixed integrated SFP+ uplinks. Optimized for entry-level campus access, small branch offices, basic Wi-Fi 6 APs, IP cameras and low-complexity IoT deployments, it runs Cisco IOS XE with fundamental Layer 2 and limited Layer 3 functionality, supporting StackWise-480 stacking and StackPower intelligent PoE power pooling technologyCisco.
2. Port Hardware Specification
Downlink Ports (48× mGig UPOE RJ45)
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Auto-negotiated speed: 100 Mbps / 1 Gbps / 2.5 Gbps / 5 Gbps / 10 Gbps Multigigabit Ethernet
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Port speed partition: 36 ports max 2.5 Gbps; 12 dedicated high-speed ports support up to 10 Gbps over Cat5e / Cat6A copper cabling
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PoE standard: Cisco UPOE (Universal Power over Ethernet), maximum 60W DC power output per port
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Connector type: Shielded RJ45, full 4-pair twisted pair power delivery
Fixed Integrated Uplink Interfaces
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4 built-in SFP+ uplink slots, compatible with 1G SFP and 10G SFP+ optical/copper transceivers, non-modular design
Management & Auxiliary Ports
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1× RJ45 out-of-band Ethernet management port
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1× RJ45 console port (supports USB-C console adapter accessory)
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1× USB Type-A storage port for firmware upgrades and log file export
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Rear StackWise-480 stacking ports for inter-switch stacking cables
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Rear StackPower power stacking ports for cross-switch PoE power resource sharing
3. Switching & Forwarding Performance
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Full-duplex non-blocking Switching Capacity: 580 Gbps
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IPv4/IPv6 Forwarding Rate: 431.54 Mpps (Million Packets Per Second)
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Maximum MAC Address Table Entries: 64,000
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Maximum IPv4 Unicast Routes (Network Essentials limit): 10,000 static / RIP / EIGRP Stub routes
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Maximum IPv6 Unicast Routes: 4,000
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Supported Layer 2/3 Multicast Groups: 16,000 entries
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Dynamic shared packet buffer: 16 MB for all switch ports
4. Memory & Storage
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System DRAM: 8 GB
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Onboard Flash Storage: 4 GB (stores IOS XE images, startup/running configurations, system logs)
5. PoE & Power Supply
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Factory default PSU: PWR-C1-1100WAC-P 1100W auto-ranging AC power supply
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Total PoE power budget with single 1100W PSU: 490W
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Supports dual hot-swappable redundant AC power supplies for power redundancy
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StackPower technology: Aggregate PoE power across up to 8 stacked switches to redistribute power to high-demand UPOE ports
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AC input voltage range: 100–240 VAC, auto-sensing 50/60 Hz
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Multi-mode per-port power delivery: 802.3af PoE (15.4W), 802.3at PoE+ (30W), Cisco UPOE (60W)
6. Stacking Capability
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Stacking Architecture: Cisco StackWise-480
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Per-stack ring full-duplex bandwidth: 480 Gbps
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Maximum stack members: Up to 8 mixed Catalyst 9300 series switches in one logical stack
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Supported high availability features: Stateful Switchover (SSO), Nonstop Forwarding (NSF), basic In-Service Software Upgrade (ISSU)
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Redundant ring topology for automatic failover against stacking cable link faults
7. Physical Mechanical Specifications
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Form Factor: 1RU standard rack-mount chassis
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Dimensions (H × W × D): 1.73 in × 17.5 in × 22.2 in (4.4 cm × 44.5 cm × 56.4 cm)
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Unit weight with single 1100W PSU installed: ~9.3 kg / 20.5 lbs
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Front panel: Individual port status LEDs, system power LED, stack status LED, PoE fault indicator LEDs
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Rear panel: StackWise stacking connectors, StackPower ports, dual PSU bays, hot-swappable variable-speed fan trays
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Cooling system: Redundant, hot-swappable smart fan trays with dynamic speed adjustment based on internal temperature
8. Software License Tier: Network Essentials (Suffix -E)
Network Essentials is the base perpetual license pre-installed on C9300-48UX-E, covering fundamental switching functions with restrictions on advanced Layer 3, security and automation features:
Included Core Features
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Full Layer 2 switching suite: 4096 VLANs, STP/RSTP/MSTP, LACP, VTPv3, Private VLANs, Voice VLAN
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Basic limited Layer 3 routing: Static routing, RIP, EIGRP Stub, limited OSPF with 1,000 route cap
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Entry-level security: 802.1X port authentication, MAB, WebAuth, basic port security, 128-bit MACsec link encryption
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Fundamental QoS tools: Class-based marking, policing, standard queue scheduling, voice/video priority queuing
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Basic telemetry: SPAN/RSPAN, limited Flexible NetFlow support without Encrypted Traffic Analytics (ETA)
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Basic HA: SSO, NSF, cross-stack LACP aggregation, simplified ISSU
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Basic programmability: Limited NETCONF/YANG, basic Guest Shell Python support, partial Cisco DNA Center integration
Features NOT Available under Network Essentials (Requires Upgrade to Network Advantage)
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Full advanced routing protocols: OSPF full scale, EIGRP full mode, BGP, PIM sparse/dense multicast, Policy-Based Routing (PBR)
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SD-Access fabric campus segmentation and TrustSec SGT tag enforcement
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Hardware-accelerated AES-256 MACsec encryption
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Encrypted Traffic Analytics (ETA), full 64k Flexible NetFlow monitoring entries
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Hierarchical QoS (HQoS), IP SLA responder, Embedded Event Manager (EEM)
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Full automation suite: Complete RESTCONF, advanced DNA Center assurance, AVC application visibility
9. Base System Software & Security Capabilities
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Operating System: Cisco IOS XE 17.x release train
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Security foundation: Secure Boot, firmware signature verification, encrypted passwords, TACACS+/RADIUS authentication, Control Plane Policing (CoPP), Dynamic ARP Inspection (DAI), IP Source Guard
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Mobility & IoT basics: Fast roaming for Wi-Fi endpoints, AP QoS prioritization, UPOE power scheduling
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Manageability: SNMP v3, SSHv2, HTTPS, local syslog logging, remote log server forwarding, zero-touch provisioning (ZTP)
10. Typical Deployment Scenario
The C9300-48UX-E targets small-to-medium branch offices, basic classroom access floors, low-density retail locations and simple wired/wireless edge deployments that only require basic Layer 2 switching and minimal Layer 3 routing. The Multigigabit UPOE copper ports eliminate short fiber runs for low-to-medium power Wi-Fi APs and standard IP surveillance cameras, while fixed SFP+ uplinks deliver cost-effective 10G fiber connectivity to upstream distribution switches for entry-level campus networks without advanced fabric or complex inter-site routing requirements.
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