The C9300-48UXM-A is part of Cisco’s Catalyst 9300X / 9300 “UXM” family of fixed-configuration switches, designed for high-performance access-layer deployment in enterprise networks.
“UXM” in the model name indicates this is a multigigabit / UPOE-capable variant, offering enhanced port speed flexibility (e.g. 2.5G, 5G, 10G) and higher PoE budgets. 3
The suffix “A” typically denotes the software license or feature set (in Cisco’s part-number nomenclature). In this case, one listing cites “Network Advantage” as the software feature set included. This switch is aimed for environments needing high throughput at the access layer (e.g. for Wi-Fi 6/6E access points, aggregation of multigigabit endpoints, or dense PoE deployments).
Below are the standout features and capabilities of the C9300-48UXM-A (and Catalyst 9300 series generally) that help distinguish it:
| Feature / Capability | Description & Benefit |
|---|---|
| Multigigabit / UPOE | Supports 2.5G, 5G, 10G (and lower) speeds on copper ports, enabling higher throughput for devices beyond 1G. The “UXM” model offers a mix of ports tuned for multigig use. |
| High PoE / UPOE power budget | Able to deliver PoE / UPOE to attached devices (e.g. wireless APs, IP cameras, access devices). The catalog mentions UPOE support. |
| Stacking (StackWise-1T / 480G / compatibility) | Catalyst 9300 switches support stacking of up to 8 units, enabling high-speed backplane aggregation, resiliency, and simplified management. |
| High throughput / forwarding performance | The switch delivers high switching capacity, with low-latency forwarding and support for advanced features like MACsec, NetFlow, and deep buffers. |
| Security / encryption | Supports hardware-based features like MACsec (IEEE 802.1AE) and IPsec in some Catalyst 9300X models. While the UXM is not exactly FXM, the platform shares many security advances. |
| Programmability / modern OS | Runs Cisco IOS XE, supports NETCONF, RESTCONF, gNMI, model-driven telemetry, APIs, container support, and application hosting. |
| High availability / resilience | Features such as NSF/SSO (non-stop forwarding / stateful switchover), fast software upgrades, cross-stack EtherChannel, and redundant power/fan support. |
| Energy efficiency / power management | Supports Energy Efficient Ethernet (EEE), per-port power limiting, and intelligent PoE management to reduce power consumption. |
Here are the detailed specifications for the C9300-48UXM-A (as best known from datasheets and third-party sources). Some values are model-specific or approximate — always check Cisco’s current official hardware installation or data sheet for the exact values in your version.
| Specification | Value / Range |
|---|---|
| Ports – access / front panel | 48 copper multigigabit ports (mix of 2.5G, 1G, and up to 10G on some ports) |
| Uplink / modular uplink options | Modular uplink slots supporting 10G, 25G, 40G, etc., depending on module. |
| Switching capacity / throughput | One vendor listing: 580 Gbps switching capacity, 431.54 Mpps forwarding rate. |
| ASIC / architecture | Based on Cisco UADP 2.0 (or variant) ASIC family. |
| Memory / CPU / storage | Typically uses a x86 CPU architecture, with internal memory and support for SSD (for application hosting) in the 9300 series. |
| Power / PoE budget | Dependent on installed power supplies; capable of offering UPOE (higher wattage per port) to devices. |
| Fans / cooling | Field-replaceable fans, typically in an N+1 redundancy configuration. |
| Stacking bandwidth | Up to 1 Tbps stacking (StackWise-1T) in newer Catalyst 9300X / modular stacking models; or 480 Gbps in others. |
| Resiliency / availability | NSF/SSO, fast software upgrade, cross-stack EtherChannel, etc. |
| Dimensions & weight | The general series hardware spec guide gives ~ 1.73 in × 17.5 in × 19.2 in (H × W × D) for similar 48-port models. |
| Operating environment | Typical temperature, humidity, power input specs consistent with enterprise rack switches; refer to Cisco’s hardware installation guide. |
| Licensing / software feature set | Comes with “Network Advantage” feature set in some listings. |
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