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C9300-48UB-A=
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- Catalyst 9300 48-port UPOE Deep Buffer, Network Advantage
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C9300-48UB-A=
Catalyst 9300 48-port UPOE Deep Buffer, Network Ad...
$14,984.00
$7,904.00
40 in Global Warehouse
$7,904.00
47% off
TRUSTED, TRIED, PROVEN
C9300-48UB-A= Overview
C9300-48UB-A= is an enterprise-class switch built on the robust Cisco IOS XE architecture that delivers high-performance, secure connectivity for modern networks. It features a range of power options supporting both AC power and redundant power supply modules, ensuring continuous operation in demanding environments.
C9300-48UB-A= provides 48 port 10/100/1000 Ethernet access connectivity paired with 4 fixed 1G SFP uplink ports, enabling flexible stacking and seamless scalability for both Layer 2 and Layer 3 deployments. Its high throughput, advanced performance, and versatile use cases make it an ideal choice for campus networks, branch offices, and large enterprise access networks alike.
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C9300-48UB-A= Specifications
| Product Type | Switch |
| Power Source | Redundant Power Supply / AC Power Supply |
| Layer Supported | Layer 2 / Layer 3 |
| Form Factor | Rack-mount |
| Power Consumption | N/A |
| Number Of Ethernet Ports | 24–48 Ports |
| Number Of Downlink Ports | 48 Ports |
| Manageable | Managed |
| Ethernet Technology | 10/100/1000 |
| Media Type Supported | Twisted Pair |
| Redundant Power Supply Supported | Yes |
| Manufacturer Part Number | C9300-48UB-A= |
| Uplink Configuration | 1G |
| IOS | IP Services |
| POE Support | Non POE |
| SFP Ports | 4 SFP Ports |
| Memory | 4 GB |
| Rack Units | 1 RU |
| Interface Ports | 10/100/1000 |
| Port/Expansion Slot Details | 48 x 10/100/1000 Ethernet ports, 4 x 1G SFP uplink ports |
| Flash Memory | 256 MB |
| Switching Capacity | 1440 Gbps |
| Switching Capacity With Stacking | 480 Gbps |
| Product Name | Cisco Catalyst 9300-48UB-A |
| Height | 1.73 inches |
| Width | 17.5 inches |
| Depth | 12.2 inches |
| Weight | 28 lbs |
C9300-48UB-A= Use Case
Campus Wi-Fi 6 Rollout with Catalyst 9300 48-Port UPOE Deep Buffer
In a large university campus environment, the C9300-48UB-A (Catalyst 9300 48-port UPOE Deep Buffer, Network Advantage) powers and aggregates high-density 802.11ax access points. Its UPOE ports supply up to 60 W per AP while the deep buffer absorbs traffic spikes during peak lecture times and events. Network Advantage features—such as policy-based segmentation and SD-Access automation—ensure secure, consistent access for 10,000+ concurrent users. Benefit: seamless, high-throughput Wi-Fi with simplified power-and-policy management and zero packet loss under load.
Smart Building IoT and HD Surveillance with Catalyst 9300 48-Port UPOE
In a corporate smart-building deployment, the C9300-48UB-A (Catalyst 9300 48-port UPOE Deep Buffer, Network Advantage) serves as the converged edge for environmental sensors, access-control systems, and 4K IP cameras. UPOE delivers sufficient power to all PoE devices, while the deep packet buffer sustains multiple high-definition video streams without drops. With Network Advantage segmentation, telemetry and encrypted VXLAN overlays, IT gains end-to-end visibility and granular security. Benefit: uninterrupted, high-resolution surveillance and centralized IoT management that bolster safety and operational intelligence.
Retail Edge Infrastructure for Real-Time POS and Digital Signage
A national retail chain deploys the C9300-48UB-A (Catalyst 9300 48-port UPOE Deep Buffer, Network Advantage) at its branch edge to power POS terminals, digital signage, Wi-Fi APs and queue-management kiosks. Its deep buffer smooths out transaction bursts during peak shopping hours, eliminating packet loss and checkout delays. Network Advantage provides advanced QoS, secure guest-vs-corporate segmentation, and consistent policy enforcement. Benefit: faster, reliable customer checkouts, dynamic in-store marketing updates, and unified management across 500+ locations.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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|---|---|---|---|---|---|
| Depth | 17.3 inches | 18.25 inches | 12.2 inches | 11 inches | 12.9 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 | 1.73 inches | 1.73 inches | 1.75 inches | 1.73 inches |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| IOS | LAN Base | LAN Base | IP Services | IP Services | IP Services |
| Layer Supported | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 3 | Layer 2 / Layer 3 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | C9300L-48T-4X-A | C9300-48UN-A | C9300-48UB-A= | C9300L-48UXG-2Q-E | C9300-48UXM-E |
| Media Type Supported | Twisted Pair | Twisted Pair | Twisted Pair | Twisted Pair | Twisted Pair |
| Memory | 512 MB | 4 GB | 4 GB | 4 GB | 4 GB |
| Number of Downlink Ports | 48 Ports | 48 Ports | 48 Ports | 48 Ports | 48 Ports |
| Number of Ethernet Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports |
| POE Support | Non POE | Non POE | Non POE | Non POE | POE+ |
| Port/Expansion Slot Details | N/A | 48 x 10/100/1000 Ethernet ports, 4 x 1G SFP uplink ports | 48 x 10/100/1000 Ethernet ports, 4 x 1G SFP uplink ports | 48 x 10/100/1000 downlink ports and 2 x 10G uplink ports | N/A |
| Power Consumption | 370W | N/A | N/A | 215W | 350 W |
| Power Source | AC Power Supply | AC Power Supply | Redundant Power Supply / AC Power Supply | AC Power Supply | Redundant Power Supply / AC Power Supply |
| Product Name | Cisco Catalyst 9300L-48T-4X-A | Cisco Catalyst 9300-48UN-A | Cisco Catalyst 9300-48UB-A | Cisco Catalyst 9300L-48UXG-2Q-E | Cisco Catalyst 9300-48UXM-E |
| Product Type | Switch | Switch | Switch | Switch | Switch |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | No | No | Yes | No | Yes |
| SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | Combo | 4 SFP Ports |
| Switching Capacity | 176 Gbps | 480 Gbps | 1440 Gbps | 480 Gbps | 480 Gbps |
| Switching Capacity with Stacking | 320 Gbps | 480 Gbps | 480 Gbps | 960 Gbps | 480 Gbps |
| Uplink Configuration | 10G | 1G | 1G | 10G | 10G |
| Weight | 26 lbs | 24 lbs | 28 lbs | 22 lbs | 24 lbs |
| Width | 17.4 inches | 17.5 inches | 17.5 inches | 17.5 inches | 17.5 inches |
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Questions & Answers
Q
What is the Cisco Catalyst 9300 48-port UPOE Deep Buffer (C9300-48UB-A=)?
A
The Cisco Catalyst 9300 48-port UPOE Deep Buffer (C9300-48UB-A=) is a stackable enterprise switch featuring 48 UPOE ports, enhanced packet buffering, and the Network Advantage software license for advanced networking services.
Q
What does UPOE mean on the Catalyst 9300-48UB?
A
UPOE (Universal Power over Ethernet) delivers up to 60W per port, supporting high-power devices such as IP phones, access points, and security cameras over standard Ethernet cabling.
Q
What are the benefits of the deep buffer architecture?
A
Deep buffer architecture allocates 12MB per port to manage congestion, minimize packet loss, and ensure consistent performance for latency-sensitive applications like voice and video.
Q
What capabilities does the Network Advantage license provide?
A
The Network Advantage license unlocks advanced features including full Layer 3 routing, dynamic segmentation, advanced QoS, policy-based automation, and advanced security capabilities.
Q
How many stacking units can the C9300-48UB support?
A
The Catalyst 9300-48UB supports up to eight switches in a stack using Cisco StackWise-480 or StackWise-320 technology for simplified management and high availability.
Q
What is the switching capacity and throughput of this model?
A
This switch delivers up to 480 Gbps of stacking bandwidth and a switching capacity of 176 Gbps, with forwarding rates up to 130.95 Mpps to handle demanding enterprise workloads.
Q
Which power supply options are available for this switch?
A
The C9300-48UB comes with dual field-replaceable AC power supplies (1,100W each) and supports redundant configurations to ensure uninterrupted UPOE power delivery.
Q
What security features are built into the Catalyst 9300-48UB?
A
Security features include Cisco TrustSec for role-based access control, MACsec encryption, Secure Boot, Cisco Identity Services Engine (ISE) integration, and advanced threat defense with encrypted traffic analytics.
Q
How can I manage and automate the Catalyst 9300-48UB?
A
You can manage and automate the switch using Cisco DNA Center, Cisco IOS XE CLI, REST APIs, and Cisco Prime Infrastructure for centralized configuration, monitoring, and zero-touch provisioning.
Q
What deployment scenarios suit the 9300-48UB Deep Buffer?
A
Ideal deployment scenarios include enterprise campus distribution, branch aggregation, wireless backhaul, and environments requiring high-density PoE with low-latency buffering for IoT and video.
Q
How does the switch ensure high availability?
A
High availability is achieved through StackWise stacking, dual redundant power supplies, hot-swappable fans and power modules, nonstop forwarding (NSF), and Stateful Switchover (SSO).
Q
What cabling is required for UPOE on this switch?
A
UPOE requires standard Cat5e or higher Ethernet cables, which support 60W per port without the need for additional power infrastructure or proprietary connectors.
Q
How do I order the Catalyst 9300-48UB-A=?
A
You can order the C9300-48UB-A= through authorized Cisco partners or the Cisco online store, specifying the SKU along with any desired SmartNet support and add-on software licenses.
Q
What warranty and support options are available?
A
Cisco offers a limited lifetime hardware warranty with next-business-day replacement and optional SmartNet Technical Support for 24/7 access to software updates and expert assistance.
Q
How does this model differ from the standard Catalyst 9300-48P?
A
Compared to the 9300-48P, the UPOE Deep Buffer model provides higher per-port power (60W vs. 30W), expanded packet buffering, and includes the Network Advantage feature set by default.
Q
Can I upgrade the software license from Network Essentials to Network Advantage?
A
Yes, you can upgrade from Network Essentials to Network Advantage via a Cisco software license upgrade without replacing hardware, unlocking enhanced routing, security, and automation features.
