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Multigig ports boosted wireless performance noticeably.
C9300-48UMX-A
Catalyst 9300 48-port (12 mGig&36 2.5Gbps) Network Advantage
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C9300-48UMX-A
- Description:
- Catalyst 9300 48-port (12 mGig&36 2.5Gbps) Network Advantage
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C9300-48UMX-A Overview
C9300-48UMX-A is built on a high-performance, enterprise-grade architecture that integrates a fixed, rack-mount design with flexible power options including support for redundant AC power supplies. It features an optimized port configuration with 48 fixed 10/100/1000 Ethernet ports and 4 fixed 10G SFP+ uplink ports, ensuring fast data transport and robust connectivity without compromise.
Designed for scalability and efficient network management, the C9300-48UMX-A incorporates advanced stacking capabilities and a substantial switching capacity to meet growing network demands. Ideal for core and access layer deployments in modern enterprise environments, it delivers reliable performance for critical applications and high-bandwidth use cases.
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C9300-48UMX-A Specifications
- Product Type
- Switch
- Layer Supported
- Layer 2 / Layer 3
- Form Factor
- Rack-mount
- Number of Ethernet Ports
- 24–48 Ports
- Manageable
- Managed
- Ethernet Technology
- 10/100/1000
- IOS
- LAN Base
- POE Support
- Non POE
- SFP Ports
- 4 SFP Ports
- Rack Units
- 1 RU
- Interface Ports
- 10/100/1000
- Height
- 1.73 inches
- Redundant Power Supply Supported
- Yes
- Flash Memory
- 256 MB
- Width
- 17.5 inches
- Uplink Configuration
- 10G
- Number of Downlink Ports
- N/A
- Media Type Supported
- Twisted Pair / Fiber
- Power Consumption
- N/A
- Weight
- 24 lbs
- Memory
- 4 GB
- Switching Capacity
- 480 Gbps
- Switching Capacity with Stacking
- 480 Gbps
- Depth
- 18.3 inches
- Power Source
- AC Power Supply with Redundant Options
- Manufacturer Part Number
- C9300-48UMX-A
- Port/Expansion Slot Details
- 48 fixed 10/100/1000 ports and 4 fixed 10G SFP+ ports
- Product Name
- Cisco Catalyst 9300-48UMX-A
C9300-48UMX-A Use Case
High-Density Enterprise Campus LAN for Wi-Fi 6 and IoT
In a global corporate campus, network engineers deploy the C9300-48UMX-A Catalyst 9300 48-port (12 mGig & 36 2.5Gbps) with Network Advantage as the aggregation switch for 802.11ax access points, PoE IP phones and IoT sensors. Leveraging Cisco DNA Center automation, advanced security policies and multi-gigabit PoE, the solution delivers 40% faster device onboarding, simplified operations and scalable performance to support 5G-ready wireless and smart-building applications.
Spine-and-Leaf Data Center Leaf Switch for Multi-Gig Throughput
A cloud services provider uses the C9300-48UMX-A Catalyst 9300 48-port (12 mGig & 36 2.5Gbps) Network Advantage switch as a leaf node in a spine-and-leaf fabric. With EVPN-VXLAN overlays, segment routing, advanced L2/L3 services and 2.5–10 Gbps server uplinks, the deployment achieves sub-millisecond latency, 99.999% uptime and 50% higher east-west throughput. Automated Zero-Touch Provisioning and telemetry simplify scaling while maintaining security segmentation.
Smart Manufacturing Edge for Industrial IoT and Automation
In a high-volume manufacturing plant, IT and OT teams integrate the C9300-48UMX-A Catalyst 9300 48-port (12 mGig & 36 2.5Gbps) with Network Advantage at the shop-floor edge. The switch powers and connects PLCs, IP cameras and wireless gateways over multi-gigabit PoE, with Cisco TrustSec segmentation, real-time telemetry and QoS prioritization. Outcome: 25% reduction in network-related downtime, deterministic control-loop performance and streamlined device onboarding.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 C9300-48UMX-A |  C9300-24S-A |  C9300L-48T-4X-E |  C9300-48UXM-A |  C9300L-48UXG-4X-E | |
|---|---|---|---|---|---|
| Depth | 18.3 inches | 12 inches | 10.8 inches | 11.3 inches | 15 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Flash Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.73 inches | 1.75 inches | 1.75 inches | 1.75 inches | 1.75 inches |
| IOS | LAN Base | LAN Base | LAN Base | IP Services | LAN Base |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Layer Supported | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | C9300-48UMX-A | C9300-24S-A | C9300L-48T-4X-E | C9300-48UXM-A | C9300L-48UXG-4X-E |
| Media Type Supported | Twisted Pair / Fiber | Fiber | Twisted Pair / Fiber | Twisted Pair | Twisted Pair |
| Memory | 4 GB | 4 GB | 4 GB | 4 GB | 4 GB |
| Number of Downlink Ports | N/A | 24 Ports | 48 Ports | 24–48 Ports | 48 Ports |
| Number of Ethernet Ports | 24–48 Ports | N/A | 24–48 Ports | 24–48 Ports | 24–48 Ports |
| POE Support | Non POE | Non POE | Non POE | Non POE | Non POE |
| Port/Expansion Slot Details | 48 fixed 10/100/1000 ports and 4 fixed 10G SFP+ ports | 24 integrated 1G SFP ports and 4 fixed 10G uplink ports | 48 x 10/100/1000 RJ-45 ports, 4 x 10G SFP+ uplink ports | 48 x 10/100/1000 Ethernet ports and 4 x 10G uplink ports | 48 x 10/100/1000 Ethernet ports and 4 x 10G SFP+ uplink ports |
| Power Consumption | N/A | 50 W | 155W | 370W | N/A |
| Power Source | AC Power Supply with Redundant Options | AC Power Supply | AC Power Supply | AC Power Supply with optional redundant power supply | AC Power Supply |
| Product Name | Cisco Catalyst 9300-48UMX-A | Cisco Catalyst 9300-24S-A Switch | Cisco Catalyst 9300L-48T-4X-E | Cisco Catalyst 9300-48UXM-A | Cisco Catalyst 9300L-48UXG-4X-E |
| Product Type | Switch | Switch | Switch | Switch | Switch |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | Yes | Yes | No | Yes | Yes |
| SFP Ports | 4 SFP Ports | 24 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports |
| Switching Capacity | 480 Gbps | 128 Gbps | 128 Gbps | 480 Gbps | 128 Gbps |
| Switching Capacity with Stacking | 480 Gbps | 480 Gbps | 320 Gbps | 960 Gbps | 320 Gbps |
| Uplink Configuration | 10G | 10G | 10G | 10G | 10G |
| Weight | 24 lbs | 24 lbs | 27 lbs | 27.6 lbs | 25 lbs |
| Width | 17.5 inches | 17.5 inches | 17.5 inches | 17.5 inches | 17.5 inches |
Reviews & Ratings
K
Kevin Lopez
4
Excellent access switch for Wi-Fi 6.
B
Brian Harper
5
Stable PoE and throughput.
J
Jason Kim
3
Advanced features are useful.
R
Ryan Patel
4
Strong enterprise access platform.
Questions & Answers
What is the Cisco Catalyst 9300 48-port (12 mGig & 36 2.5Gbps) Network Advantage (SKU C9300-48UMX-A)?
The Cisco Catalyst 9300 48-port (12 mGig & 36 2.5Gbps) Network Advantage switch (SKU C9300-48UMX-A) is a fixed enterprise-grade access layer switch that delivers multigigabit performance, advanced routing, and enhanced security with Cisco IOS XE Network Advantage.
What are the key hardware features of the C9300-48UMX-A?
It offers 48 multigigabit RJ45 ports, four modular uplink slots supporting 1/10/25GbE optics, field-replaceable power supplies and fans, and a compact 1RU form factor.
What advanced software capabilities does the Network Advantage license include?
Network Advantage provides full Layer 3 routing, Segment Routing, EVPN, flexible NetFlow, advanced QoS, Cisco TrustSec, Secure Group Tag, and SD-Access automation.
What switching capacity and forwarding performance does the Catalyst 9300-48UMX-A deliver?
It delivers up to 480 Gbps of switching capacity and up to 720 Mpps of forwarding performance per switch for non-blocking line-rate traffic.