Cisco Catalyst C9300-24U-A — 24× 1G UPOE (60W/port) access with modular 1/10/40G uplinks (Network Advantage)

What it is: A stackable, enterprise L3 Catalyst 9300 with 24 × 10/100/1000 RJ-45 access ports delivering Cisco UPOE (up to 60W/port), plus a modular uplink bay (swap in 1G, 10G, or 40G options). 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 C9300-24U-A (plain English)

• Power-hungry edge devices, handled: up to 60W/port for Wi-Fi 6/6E APs, cameras with heaters, thin clients, and lighting/IoT.

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

• Serious stacking: StackWise-480 gives high stack bandwidth and single-IP operations across up to 8 members.

• 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 (C9300-24U-A)

Access ports

• 24 × 10/100/1000 RJ-45, UPOE (up to 60W/port)

• 802.3af/at compatible; supports higher draw for UPOE endpoints

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 PoE plan; add a second for 1+1 redundancy or more budget)

• System PoE budget varies by PSU choice; plan endpoint draw + ~20–30% headroom

• Perpetual & Fast PoE keep power flowing through reload/boot

Stacking / HA

• StackWise-480 (up to 480 Gbps stack bandwidth)

• Up to 8 members per stack; fast failover and ISSU options in typical designs

Software / features (Network Advantage)

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

• 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 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 and/or larger PoE 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 with high-draw endpoints (new APs, IoT/lighting, PTZ cameras) and flexible uplink speeds.

• Pick C9300-24P if standard PoE+ (30W/port) is enough.

• Pick C9300 mGig (24UX/48UXM) if you need 2.5/5/10G downlinks for very high-throughput APs.

TL;DR

C9300-24U-A = 24× UPOE (60W/port), modular 1/10/40G uplinks, StackWise-480, dual hot-swap PSUs & fans, and Network Advantage—built for modern access layers that need serious power at the edge and room to grow.