C9300-24UXB-A – 24x10G mGig UPOE Ports – Higher-Scale Buffer – 560W PoE Budget
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Cisco C9300-24UXB-A Compatible Accessories, Modules & Spare Parts
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C9300-24UXB-A Description
C9300-24UXB-A is a Cisco Catalyst 9300 Series higher-scale stackable access switch for campus access networks that need dense multigigabit copper connectivity and Network Advantage software. This SKU provides 24 100M/1G/2.5G/5G/10G Cisco UPOE access ports, a modular uplink slot for Catalyst 9300 network modules, a PWR-C1-1100WAC-P default power supply with a 560W default PoE budget, StackWise-480 with StackPower support, and the 64 MB packet buffer profile Cisco lists for the 24-port Multigigabit higher-scale model.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
C9300-24UXB-A |
|
Product type |
Higher-scale stackable access switch with modular uplinks |
|
Access ports |
24 x 100M/1G/2.5G/5G/10G multigigabit Cisco UPOE copper ports |
|
Scale profile |
Catalyst 9300 higher-scale model |
|
Packet buffer |
64 MB for the 24-port Multigigabit higher-scale model |
|
Network license |
Network Advantage |
|
Uplink architecture |
Modular uplink slot for Cisco Catalyst 9300 network modules |
|
Default power supply |
PWR-C1-1100WAC-P |
|
Default PoE budget |
560W |
|
Stacking and StackPower |
StackWise-480 with StackPower support |
|
Expanded PoE budget |
1440W with supported secondary power supply configuration |
|
Minimum software release |
Cisco IOS XE Gibraltar 16.12.1 |
|
Switching and forwarding |
640 Gbps standalone switching; 476.19 Mpps standalone forwarding |
Product Performance
Key Features
The base hardware marker to preserve is `C9300-24UXB`: it combines all-port multigigabit UPOE copper access with Cisco’s higher-scale Catalyst 9300 model group.
For this orderable SKU, `-A` maps the C9300-24UXB switch to Network Advantage; the Essentials alternative is the separate C9300-24UXB-E line.
The 64 MB packet buffer belongs to the 24-port Multigigabit higher-scale entry, so standard C9300-24UX hardware should not be treated as an equivalent substitute.
Cisco’s higher-scale column gives this family 64,000 MAC addresses, 112,000 IPv4 routes, 56,000 IPv6 routing entries, 18,000 QoS scale entries, and 18,000 ACL scale entries.
The stack plan has to stay within the higher-scale Catalyst 9300 set, because Cisco separates C9300-24UB, C9300-24UXB, and C9300-48UB from standard C9300 mixed stacking.
C9300 modular uplinks are selected through network modules, which means the switch SKU alone does not define the uplink connector or speed mix.
Application Scenarios
C9300-24UXB-A fits access closets where powered endpoints need 10G, 5G, 2.5G, 1G, or 100M copper negotiation on every downlink plus Cisco UPOE support.
Use this SKU where the stack standard is already based on higher-scale Catalyst 9300 members and the design needs the C9300-24UXB mGig port profile instead of the 1G C9300-24UB profile.
C9300-24UXB-A matches a Catalyst 9300 Network Advantage bill of materials that requires higher-scale mGig access, modular uplinks, StackWise-480, StackPower, and a same-tier Advantage software subscription term.
Product Comparison
|
Parameter |
C9300-24UXB-A | |||
|---|---|---|---|---|
|
Product type |
Higher-scale stackable access switch |
Higher-scale stackable access switch |
Stackable access switch |
Higher-scale stackable access switch |
|
Scale profile |
Higher-scale Catalyst 9300 |
Higher-scale Catalyst 9300 |
Standard Catalyst 9300 modular uplink |
Higher-scale Catalyst 9300 |
|
Access ports |
24 x 100M/1G/2.5G/5G/10G mGig UPOE |
24 x 100M/1G/2.5G/5G/10G mGig UPOE |
24 x 100M/1G/2.5G/5G/10G mGig UPOE |
24 x 10/100/1000 UPOE |
|
Uplink architecture |
Modular uplink slot |
Modular uplink slot |
Modular uplink slot |
Modular uplink slot |
|
Network license |
Network Advantage |
Network Essentials |
Network Advantage |
Network Advantage |
|
Default power supply |
PWR-C1-1100WAC-P 1100W AC |
PWR-C1-1100WAC-P 1100W AC |
PWR-C1-1100WAC-P 1100W AC |
PWR-C1-1100WAC-P 1100W AC |
|
Default PoE budget |
560W |
560W |
560W |
830W |
|
Expanded PoE budget |
1440W with supported secondary power supply configuration |
1440W with supported secondary power supply configuration |
1440W with supported secondary power supply configuration |
1440W with supported secondary power supply configuration |
|
Packet buffer |
64 MB |
64 MB |
16 MB for 24-port 10G Multigigabit |
32 MB |
|
MAC addresses |
64,000 |
64,000 |
32,000 |
64,000 |
|
IPv4 routes |
112,000 total routes |
112,000 total routes |
32,000 total routes |
112,000 total routes |
|
Stacking boundary |
Higher-scale C9300 stack group |
Higher-scale C9300 stack group |
Standard C9300 modular-uplink stack group |
Higher-scale C9300 stack group |
|
Minimum software release |
Cisco IOS XE Gibraltar 16.12.1 |
Cisco IOS XE Gibraltar 16.12.1 |
Cisco IOS XE Everest 16.6.1 |
Cisco IOS XE Gibraltar 16.12.1 |
|
Switching capacity |
640 Gbps standalone; 1120 Gbps with stacking |
640 Gbps standalone; 1120 Gbps with stacking |
640 Gbps standalone; 1120 Gbps with stacking |
208 Gbps standalone; 688 Gbps with stacking |
|
Forwarding rate |
476.19 Mpps standalone; 833.33 Mpps with stacking |
476.19 Mpps standalone; 833.33 Mpps with stacking |
476.19 Mpps standalone; 833.33 Mpps with stacking |
154.76 Mpps standalone; 511.90 Mpps with stacking |
- In a C9300-24UXB-A vs C9300-24UXB-E comparison, the hardware profile, 64 MB packet buffer, higher-scale stack group, and 24 mGig UPOE access ports match; the confirmed difference is Network Advantage versus Network Essentials.
- The C9300-24UXB-A difference from C9300-24UX-A is the scale profile, because C9300-24UXB-A is the higher-scale model with 64,000 MAC addresses and 112,000 IPv4 routes while C9300-24UX-A remains in the standard Catalyst 9300 modular-uplink group.
- For C9300-24UXB-A vs C9300-24UB-A, the comparison centers on access-port speed and buffer: C9300-24UXB-A is 24-port 10G/mGig UPOE with a 64 MB buffer, while C9300-24UB-A is 24-port 1G UPOE with a 32 MB buffer.
- In a C9300-24UXB-A vs C9300-48UB-A comparison, the which model to choose question is 24 mGig UPOE access versus 48 1G UPOE access, with both SKUs staying inside the higher-scale Network Advantage family.
Selection Guide
1. Start with the C9300-24UXB access requirement
Choose C9300-24UXB-A when the bill of materials calls for 24 higher-scale multigigabit Cisco UPOE copper ports under Network Advantage.
2. Keep Essentials and Advantage separate
Use C9300-24UXB-E only when the same higher-scale 24-port mGig UPOE hardware should be ordered with Network Essentials instead of Network Advantage.
3. Do not collapse higher-scale into standard C9300-24UX
Select C9300-24UX-A only if the standard Catalyst 9300 modular-uplink scale profile is acceptable and the 64 MB C9300-24UXB packet buffer is not required.
4. Split mGig and 1G UPOE decisions
Move to C9300-24UB-A or C9300-48UB-A only when the access design is 1G UPOE rather than 10G/mGig UPOE.
PoE Power Planning
|
Planning Item |
Cisco Confirmed Value |
Order Impact |
|---|---|---|
|
Default PoE budget |
C9300-24UXB is listed with 560W available PoE and PWR-C1-1100WAC-P as the default supply |
Size the powered endpoint count against the default supply before adding a secondary power supply |
|
Secondary supply options |
The C9300-24UXB power table lists 910W with a 350W secondary supply, 1275W with a 715W secondary supply, and 1440W with an 1100W secondary supply |
Decide whether the quote needs extra PoE capacity or only power redundancy |
|
UPOE port class |
Cisco UPOE ports support Type 1, Type 2, Type 3, and Cisco UPOE powered devices up to 60W per port |
Prevent substitution with data-only, PoE+, or UPOE+ SKUs unless the endpoint power class changes |
|
StackPower |
StackPower can let a switch use power from other stack members when internal supplies cannot support the total load |
Add StackPower cabling only where the site power design uses shared stack power |
Ordering Checklist
|
Check Item |
What to Confirm |
Why It Matters |
|---|---|---|
|
Hardware line |
C9300-24UXB-A on the switch line |
Avoids replacing the Advantage higher-scale mGig SKU with C9300-24UXB-E, C9300-24UX-A, or a 1G UPOE model |
|
Stack membership |
Higher-scale C9300 members only |
Prevents an unsupported mixed-stack design with standard modular-uplink C9300 models |
|
Uplink build |
One compatible C9300 network module plus matching optics or copper media |
Prevents a base switch order from arriving without the required uplink path |
|
Software line |
C9300-DNA-A-24 term length when Cisco DNA Advantage is selected |
Keeps the subscription row aligned with the 24-port Advantage hardware choice |
|
Power design |
Default PWR-C1-1100WAC-P, 560W base PoE budget, and any secondary supply |
Checks whether the powered endpoint plan fits the Cisco-listed power matrix |
|
Stack accessories |
StackWise cable length and StackPower cable need |
Keeps data stacking and shared-power cabling from being treated as included by default |
Optional Add-ons
|
Model |
Description |
|---|---|
|
Catalyst 9300 4 x 1GE SFP network module | |
|
Catalyst 9300 8 x 10G/1G SFP+ network module | |
|
Catalyst 9300 2 x 40GE QSFP network module | |
|
Catalyst 9300 2 x 25G/10G/1G SFP28 network module | |
|
Catalyst 9300 4 x 10G/mGig copper network module | |
|
NM-BLANK-T1= |
Cisco Catalyst Type 1 network module blank spare |
|
C9300 Cisco DNA Advantage 24-port 3 Year Term license | |
|
C9300-DNA-A-24-5Y |
C9300 Cisco DNA Advantage 24-port 5 Year Term license |
|
C9300-DNA-A-24-7Y |
C9300 Cisco DNA Advantage 24-port 7 Year Term license |
|
1100W AC Platinum-rated power supply spare | |
|
Data stack 50 cm cable option for C9300 and C9300X SKUs | |
|
Data stack 1 m cable option for C9300 and C9300X SKUs | |
|
Data stack 3 m cable option for C9300 and C9300X SKUs |
C9300-24UXB-A Switch Rear Panel
The switch rear panel includes StackWise connectors, StackPower or XPS connectors, ports, fan modules, and power supply modules.
Components Delivered in the Shipping Box
The shipping box contains the model of the switch you ordered and other components needed for installation. Some components are optional, depending on your order.
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product ID | C9300-24UXB-A | Product type | Higher-scale stackable access switch with modular uplinks |
| Network license | Network Advantage | Access ports | 24 x 100M/1G/2.5G/5G/10G multigigabit Cisco UPOE copper ports |
| Scale profile | Catalyst 9300 higher-scale model | Default power supply | PWR-C1-1100WAC-P |
| Default PoE budget | 560W | PoE with 350W secondary supply | 910W |
| PoE with 715W secondary supply | 1275W | PoE with 1100W secondary supply | 1440W maximum by port rating |
| Uplink architecture | Optional field-replaceable C9300 network module | Supported network modules | C9300-NM-4G, C9300-NM-8X, C9300-NM-2Q, C9300-NM-2Y, C9300-NM-4M |
| Stacking architecture | StackWise-480 | Stack members | Higher-scale C9300 models only |
| Stack bandwidth | 480 Gbps | StackPower | Supported |
| Minimum software release | Cisco IOS XE Gibraltar 16.12.1 | Packet buffer | 64 MB |
| FNF entries | 256,000 flows for higher-scale 24-port Multigigabit models | MAC addresses | 64,000 |
| IPv4 routes | 112,000 total routes | IPv6 routing entries | 56,000 |
| Multicast routing scale | 16,000 | QoS scale entries | 18,000 |
| ACL scale entries | 18,000 | DRAM | 8 GB |
| Flash | 16 GB | VLAN IDs | 4094 |
| Jumbo frames | 9198 bytes | Switching capacity | 640 Gbps standalone |
| Switching capacity with stacking | 1120 Gbps | Forwarding rate | 476.19 Mpps standalone |
| Forwarding rate with stacking | 833.33 Mpps | Dimensions | 1.73 x 17.5 x 20.2 in. (4.4 x 44.5 x 51.3 cm) |
| Power supply input | PWR-C1-1100WAC-P supports 115 to 240 VAC autoranging | UPOE support | Type 1, Type 2, Type 3, and Cisco UPOE powered devices up to 60W per port |
Get More Information
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Quality Certifications
Customer Reviews
Questions & Answers
-
Who needs C9300-24UXB-A for higher-scale 10G/mGig UPOE and Network Advantage?
-
What does C9300-24UXB-A add over Network Essentials license?
-
Can C9300-24UXB-A support high-speed AP access?
-
How does C9300-24UXB-A compare with C9300-24UB-A for mGig access?
-
Can C9300-24UXB-A join higher-scale StackWise with 48UB models?
-
Does C9300-24UXB-A provide UPOE+ 90W or UPOE power?
-
When is C9300-24UXB-A the wrong SKU?
-
What Network Advantage, power, and modular uplink details matter for C9300-24UXB-A?
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