C9300-48UXM-A

The Cisco Catalyst C9300-48UXM-A is a 48-port multigigabit UPOE access switch for enterprise closets that need more than standard 1G edge connectivity. It combines 36 copper ports supporting 100M, 1G, and 2.5G speeds with 12 multigigabit ports supporting 100M, 1G, 2.5G, 5G, and 10G, giving network teams a practical access platform for Wi-Fi 6, high-bandwidth workstations, cameras, collaboration rooms, and mixed endpoint refreshes. This helps organizations reuse installed Category cabling while removing the access bottleneck created when modern wireless and media endpoints outgrow older Gigabit-only switches, without replacing every horizontal cable run. The -A SKU includes the Network Advantage software image, so it is positioned for advanced Layer 3 access, segmentation, policy, automation, and Cisco IOS XE operations. Its modular uplink bay lets buyers choose 1G SFP, 10G SFP+, 25G SFP28, 40G QSFP, or multigigabit uplink modules instead of locking the closet to one fixed upstream design.

For power planning, C9300-48UXM-A ships with an 1100W AC power supply and provides a 490W default PoE budget for Cisco UPOE endpoints. That budget supports practical mixes of wireless access points, IP phones, cameras, badge readers, thin clients, and IoT devices, while optional higher-wattage or secondary power supplies can increase the available PoE pool for denser deployments. Cisco StackPower support allows power sharing across supported Catalyst 9300 stack members, and dual redundant power supply capability helps protect closets where wireless and security devices must stay online. The chassis also uses field-replaceable fans with N+1 redundancy, and features such as Perpetual PoE and Fast PoE help powered devices recover predictably after maintenance windows, power events, or controlled switch reloads. Power visibility and per-port controls also make it easier to reserve capacity for critical devices, cap lower-priority endpoints, and troubleshoot real demand during migrations.

The C9300-48UXM platform is built for higher-demand access layers that must carry faster endpoint traffic without moving every port to 10G. Cisco lists 580 Gbps switching capacity, 1060 Gbps switching capacity with stacking, and 431.54 Mpps forwarding performance, supported by 8 GB DRAM, 16 GB flash, and a 32,000-entry MAC table. StackWise-480 lets multiple switches operate as one logical system for simpler management and expansion across floors or buildings. It can be deployed in stacks with other supported Catalyst 9300 models, which is useful when a closet contains a blend of multigigabit wireless ports and standard Gigabit access ports under one operational policy. For procurement teams, the C9300-48UXM-A clearly identifies a Catalyst 9300 multigigabit UPOE switch with Network Advantage licensing, rack-mount 1U hardware, modular uplink flexibility, and enough performance for campus access modernization, high-density wireless, and long-term endpoint growth across enterprise sites.