Cisco Catalyst C9300-24UX-A — 24× mGig (1/2.5/5/10G) with UPOE (up to 60W/port) + modular 1/10/40G uplinks (Network Advantage)

What it is: A stackable, enterprise L3 Catalyst 9300 with 24 multigigabit copper ports (1/2.5/5/10G on RJ-45) delivering Cisco UPOE up to 60W/port, plus a modular uplink bay (swap in 1G, 10G, or 40G). Ships with IOS-XE and the Network Advantage (-A) feature set. Field-replaceable dual PSUs and hot-swap fans keep the closet serviceable.

Why buyers pick C9300-24UX-A (plain English)

• mGig for fast APs & edge devices: all 24 ports support 1/2.5/5/10G—perfect for Wi-Fi 6/6E backhaul and high-throughput clients.

• Serious power at the edge: UPOE up to 60W/port for APs, thin clients, PTZ cameras with heaters, and IoT/lighting.

• Uplink freedom: choose 4×1G, 4×10G, 8×10G, or 2×40G network modules—upgrade later without replacing the switch.

• Advanced features included: Network Advantage unlocks richer routing, segmentation, and SD-Access readiness.

• Service without outages: hot-swap PSUs/fans and Perpetual/Fast PoE to keep endpoints powered during reloads.

60-second spec box (C9300-24UX-A)

Access ports

• 24 × mGig RJ-45 supporting 100M/1/2.5/5/10G

• UPOE up to 60W/port (802.3af/at compatible)

Uplinks (order one network module)

• C9300-NM-4G (4 × 1G SFP)

• C9300-NM-4X (4 × 10G SFP+)

• C9300-NM-8X (8 × 10G SFP+)

• C9300-NM-2Q (2 × 40G QSFP)

Power / PoE

• Two hot-swap PSU bays (size to your UPOE plan; add a second for 1+1 redundancy or more budget)

• System PoE budget depends on PSU choice—plan endpoint draw + ~20–30% headroom

• Perpetual & Fast PoE supported

Stacking / HA

• StackWise-480 (up to 480 Gbps stack bandwidth), up to 8 members

Software / features (Network Advantage)

• Advanced L3: OSPF/EIGRP/BGP, PBR, VRF-lite; MPLS/SRv6 where supported

• Security/segmentation: 802.1X/MAB, TrustSec hooks, SGTs, DHCP Snooping, DAI, MACsec (model/optic dependent)

• Ops: WebUI/CLI, model-driven telemetry, NetFlow/Flexible NetFlow, DNA Center compatibility

Hardware serviceability

• Hot-swap fans (FRUs)

• Hot-swap PSUs (AC/DC options vary by region)

Form factor

• 1U rack-mount, wiring-closet friendly acoustics

What to order with it (common adds)

• Uplink module + matching SFP/SFP+/QSFP or DAC/AOC

• Second PSU for redundancy / larger UPOE budget

• DNA subscriptions (Essentials/Advantage) for SD-Access and centralized automation

• Cable management / rack ears for tidy installs

Where it fits (and when to choose something else)

• Perfect for: access layers driving Wi-Fi 6/6E or multi-gig endpoints that need both >1G copper and higher PoE power.

• Pick C9300-24U if standard 1G + UPOE (no mGig) is enough.

• Pick C9300-48UXM if you want 48 ports with a mix of mGig speeds.

• Pick C9400/C9500 if you’re building modular cores or high-performance aggregation.

TL;DR

C9300-24UX-A = 24× mGig (up to 10G) + UPOE 60W/port, modular 1/10/40G uplinks, StackWise-480, dual hot-swap PSUs & fans, and Network Advantage—the go-to Catalyst when your edge needs both speed and serious power.