C9300LM-48U-4Y-A Catalyst 9300LM 48-Port UPOE, Advantage

This is the Network Advantage version of the 48-port UPOE 9300LM. Cisco describes Advantage as adding advanced routing, segmentation, multicast, scale and security to the Layer 2 and Layer 3 base of Network Essentials. The C9300LM-48U-4Y-E carries the same hardware with Essentials.

Decoded: LM for the 9300LM line ("Catalyst 9300 mini" in Cisco's ordering guide), 48 ports, U for Cisco UPOE on every port at 10/100/1000 Mbps, and -4Y for four fixed SFP28 uplinks, which the data sheet rates at 25G. No network module is needed.

PoE budget: 790 W with the standard PWR-C6-1KWAC; 1390 W with a 600 W AC second supply; 1790 W with two 1000 W AC supplies. Only PWR-C6 supplies fit the 9300LM, so PWR-C1 units from other 9300 switches cannot be reused here.

Throughput: 296 Gbps of switching capacity and 220.22 Mpps, or 616 Gbps across a stack.

StackWise-320 links up to 8 switches at 320 Gbps through the optional C9300L-STACK-KIT2, which replaced the C9300L-STACK-KIT after its end of sale on November 3, 2025. Cisco requires the same licence level across a 9300L/9300LM stack, so this -A unit stacks with Advantage members. No StackPower, and no stacking with modular-uplink 9300 models.

Licensing on new orders: a Cisco DNA or Catalyst subscription term licence of the same tier is mandatory, per Cisco's ordering guide. Cisco lists the model as current, with no EoL bulletin.

Nearest sibling: the C9300LM-48T-4Y has the same ports and uplinks without PoE, on a 600 W supply.

See the full range on our Cisco Catalyst 2960, 3850 and 9300 switches page. Request a quote or send us your parts list.