C9300-48UXM-A – 48x 2.5G mGig UPOE Ports – Modular Uplink – 490W PoE Budget

Product Comparison

• The C9300-48UXM-A and C9300-48UN-A both pack 48 UPOE-capable copper ports on the same modular-uplink chassis, but the port mix and PoE budget differ: the -48UXM-A splits its ports into 36 lower-rate copper ports and 12 Multigigabit ports up to 10G with a 490W default PoE budget, while the -48UN-A gives all 48 ports 5G Multigigabit capability and a larger 645W default PoE budget on the same 1100W supply. A design that needs uniform 5G Multigigabit across every access port and a higher default PoE ceiling fits the -48UN-A better, while a design where only a subset of ports needs 10G Multigigabit and the rest can run at 2.5G or below can stay on the -48UXM-A.
• Against the C9300-24UX-A, the port count is the first filter: the C9300-48UXM-A doubles the port density to 48 total ports for the same modular-uplink, UPOE, Network Advantage combination, while the -24UX-A trades port count for a higher per-port Multigigabit ceiling across all 24 ports and a larger 560W default PoE budget concentrated on fewer ports. A closet that needs to fill more physical drops on one chassis should look at the -48UXM-A, while one that needs every active port capable of 10G Multigigabit should look at the -24UX-A instead.
• Across all three SKUs, Network Advantage licensing and the PWR-C1-1100WAC-P default power supply are identical, so the decision comes down to port count, port-speed mix, and default PoE budget rather than license tier or power hardware.