Cisco Catalyst 9300 vs 9300X: Specs Compared

• Choose the 9300 for standard 10G/40G access-layer deployments; choose the 9300X for high-density Wi-Fi 6E/7 or bandwidth-heavy environments where StackWise-1T scales to 1 Tbps and 25G/40G/100G uplinks.
• The 9300 and 9300X can stack together, but the whole stack drops to StackWise-480 speed (480 Gbps); only an all-9300X stack gets the full 1 Tbps.
• UPOE+ (90W) is standard on the 9300X’s copper and multigig models; fiber-only 9300X SKUs carry no PoE at all.
• Both switches run the same IOS XE software and DNA/Catalyst licensing tiers, so the decision comes down to hardware headroom, not capability.

Picking between the Catalyst 9300 and 9300X comes down to how much uplink and stacking bandwidth your access layer needs. Both belong to the Cisco Catalyst 9300 series and run the same IOS XE software, but they’re not interchangeable once you get into higher-density Wi-Fi or bandwidth-heavy environments. Here’s how the specs, use cases, and refurbished pricing stack up, along with what changes in day-to-day operation once you’re running one over the other.

Which Cisco Catalyst switch should I choose, the 9300 or 9300X?

Choose the Catalyst 9300 for standard access-layer deployments with 10G/40G uplinks and Wi-Fi 5/6 access points. Choose the 9300X for high-density Wi-Fi 6E/7 or bandwidth-heavy environments like AI infrastructure closets, where StackWise-1T stacking delivers up to 1 Tbps and uplinks scale to 25G/40G/100G. Refurbished units close much of the price gap between the two lines.

Request an instant quote to see exact current pricing on both models.

Both are stackable access-layer switches, but they’re built for different bandwidth ceilings. The 9300 tops out at 10G/40G uplinks on StackWise-480, which covers most standard access-layer deployments. The 9300X moves to StackWise-1T with 25G/40G/100G uplink options and higher PoE budgets, aimed at higher-density Wi-Fi 6E/7 access points and bandwidth-heavy environments like AI infrastructure closets.

If your uplinks and access points don’t need 25G or more, the 9300 is the better value. If they do, the 9300X is worth the premium. Most office and campus deployments never touch the ceiling on a 9300’s 10G/40G uplinks, since a single closet rarely generates enough downstream traffic to saturate that. Where the math changes is anywhere you’re aggregating a lot of high-throughput devices into one switch, like a dense AP deployment or a closet feeding infrastructure that itself needs to move data quickly.

What are the key spec differences between the Catalyst 9300 and 9300X?

The 9300 uses StackWise-480 stacking with up to 480 Gbps of stack bandwidth, 10G/40G uplinks, and UPOE (60W) power. The 9300X uses StackWise-1T stacking with up to 1 Tbps bandwidth, 25G/40G/100G uplinks, and UPOE+ (90W) standard on its copper and multigig models. The standard model fits typical Wi-Fi 5/6 access layers; the X-series fits high-density Wi-Fi 6E/7 and bandwidth-heavy closets.

Request an instant quote to see Network Republic’s current pricing on both models.

The PoE difference matters more than it looks on paper. UPOE+ at 90W is standard on the 9300X’s copper and multigig models, meaning every access port on those SKUs can push enough power for higher-draw devices, including Wi-Fi 6E/7 access points (which draw more than older APs did), PTZ cameras, and digital signage.

The fiber-only 9300X SKUs don’t carry PoE at all, since they’re built for uplink density rather than access ports. On the 9300, UPOE+ is only on select models too, so check the specific SKU’s power supply and PoE configuration rather than assume the budget you need is there by default.

Because uplink modules are field-swappable on most models, moving from 10G to 25G/40G later is often a card swap instead of a full switch replacement.

One buying consideration that trips people up: you can mix 9300 and 9300X switches in the same physical stack, but the whole stack then runs at StackWise-480 speed (480 Gbps), not the 9300X’s 1 Tbps ceiling. If you’re adding a 9300X to an existing 9300 stack for the bandwidth headroom, you won’t actually get it until the stack is all 9300X.

A few models sit outside this: the higher-scale 9300 SKUs (C9300-24UB, C9300-24UXB, C9300-48UB) can’t mix with 9300X at all, and the fixed-uplink 9300L/9300LM line never mixes with modular 9300/9300X switches regardless of generation. Worth planning around if you’re expanding a closet incrementally rather than replacing it all at once.

What is the Cisco Catalyst 9300 best for?

The Catalyst 9300 is best for standard wiring-closet deployments: desktop connectivity, Wi-Fi 5/6 access points, and general office or campus access layers where 10G uplinks are enough. It’s the lower-cost entry point into the Catalyst 9000 line, which matters when outfitting multiple closets that don’t need 9300X-level headroom in every location.

This is the switch for most wiring closets in a typical office or school building: desktop drops, VoIP phones, printers, and a reasonable number of Wi-Fi 5 or Wi-Fi 6 access points, none of which come close to saturating a 10G uplink on their own. It’s also the more sensible default when standardizing a multi-site rollout, since most locations don’t need 9300X-level bandwidth, and paying for that headroom everywhere adds up fast across a dozen or more closets.

Browse our current refurbished Catalyst 9300 inventory to see in-stock models and pricing.

What is the Cisco Catalyst 9300X best for?

The Catalyst 9300X is best for bandwidth-heavy spots: closets feeding a stack of Wi-Fi 6E/7 access points that each pull multiple gigabits, or access layers in front of AI training or inference infrastructure where the switch itself shouldn’t be the bottleneck. Its higher stack bandwidth and 25G+ uplinks give more room to grow before a forklift upgrade.

Wi-Fi 6E and 7 access points can individually push well past 1 Gbps under load, and once you’ve got a stack of them hanging off one closet, a 10G uplink starts to feel tight. The 9300X’s 25G/40G/100G options give that headroom without needing a full switch refresh in two years. That same modularity means a module swap takes the 9300X from 25G to 100G without a chassis change.

The same logic applies in front of AI infrastructure: if the switch sits between users and GPU-backed services, or handles east-west traffic near a training cluster, the last thing you want is the network closet becoming the bottleneck in a setup built for speed everywhere else.

Browse our current refurbished Catalyst 9300X inventory for available SKUs and stock.

Do the Catalyst 9300 and 9300X use the same management and licensing setup?

Yes. Both run IOS XE and support the same DNA licensing tiers, Network Essentials and Network Advantage, plus integration with DNA Center, Identity Services Engine, and SD-Access. A DNA Advantage subscription unlocks policy-based automation and network assurance on either switch, and also includes a Cisco ThousandEyes Network and Application Synthetics entitlement for visibility beyond the campus perimeter. The hardware, not the software stack, is what differs between the two lines.

Cisco has been rebranding this subscription layer: DNA Center is increasingly called Catalyst Center, and DNA Essentials/Advantage now shows up as Catalyst Essentials/Advantage on newer ordering guides. Both names are still in circulation.

That consistency matters most for MSPs and multi-site rollouts: it cuts down on repetitive network configuration tasks by pushing templates and policy from one DNA Center console instead of touching each switch by hand, and a DNA subscription carries over as you add or swap switches, whether that’s Essentials for a branch closet or Advantage for a full SD-Access deployment.

StackPower also works across both lines, sharing power between stacked units so the stack stays reachable if one supply fails, useful for campus network closets and data center deployments alike. The 9300X just has more headroom to run all of that at higher throughput, not different capability, just more room to use it under load.

Cisco Catalyst 9300 vs 9300X: Frequently Asked Questions

Is a refurbished Catalyst 9300 as reliable as a new one?

A properly tested refurbished 9300 runs the same IOS XE software and hardware as new. The difference is prior use, not reduced capability. Network Republic backs it with a 1-year warranty from the date of delivery (30 days for reseller and wholesale orders), and that combination of testing and warranty coverage is what actually determines reliability, not whether the box is new or refurbished.

Both the 9300 and 9300X also support hardware-anchored secure boot and secure unique device identification (SUDI), which gives you a way to verify a switch’s authenticity during setup, a useful check on any refurbished unit since it confirms the hardware hasn’t been tampered with before it reaches your network. Full terms are in our warranty policy.

Where can I find the official Cisco Catalyst 9300 datasheet?

Cisco publishes datasheets per SKU on cisco.com, since exact specs (port counts, power draw, uplink module compatibility) vary across the 9300 and 9300X model ranges. Worth checking against your specific model before ordering, since two switches in the same family can differ meaningfully in port count or supported network modules depending on the exact SKU.

Can I mix 9300 and 9300X switches in the same network?

Yes, including in the same physical stack, but the stack negotiates down to StackWise-480 speed (480 Gbps) rather than the 9300X’s 1 Tbps ceiling. If you want the 9300X’s full stacking bandwidth, keep that stack homogeneous.

A common pattern:

• A 9300 stack in standard closets
• A separate, all-9300X stack in the one or two locations that need the full 1 Tbps
• All of it connected through the same core

Does the 9300X support everything the 9300 does?

Yes. Feature-for-feature, the 9300X matches the 9300: same VLANs, QoS policies, and security configuration options. The difference is entirely about hardware headroom (stacking bandwidth, uplink speed, PoE budget), not what the switch is capable of.

See the management and licensing breakdown above for how that carries across a mixed fleet.

Bottom line

Both switches run the same software and cover the same core feature set. The decision comes down to how much uplink and stacking bandwidth your closet actually needs. Most standard deployments are well served by the 9300. If you’re feeding high-density Wi-Fi 6E/7 or bandwidth-heavy infrastructure, the 9300X’s headroom is worth the premium. Request an instant quote to see how close refurbished pricing brings the two lines together.

Browse the full refurbished Cisco Catalyst 9300 and 9300X inventory, or request an instant quote for current stock and pricing.