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

Higher-scale mGig packet buffer
Default PoE budget
Standalone switching capacity

Key Features

C9300-24UXB hardware line

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.

Advantage license placement

For this orderable SKU, `-A` maps the C9300-24UXB switch to Network Advantage; the Essentials alternative is the separate C9300-24UXB-E line.

Buffer value that changes the quote

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.

Larger table profile

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.

Stack member filter

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.

Uplink BOM is separate

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

High-speed access for powered endpoints

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.

Higher-scale Catalyst 9300 stack refresh

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.

Network Advantage campus switching

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

C9300-24UXB-E

C9300-24UX-A

C9300-24UB-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

C9300-NM-4G

Catalyst 9300 4 x 1GE SFP network module

C9300-NM-8X

Catalyst 9300 8 x 10G/1G SFP+ network module

C9300-NM-2Q

Catalyst 9300 2 x 40GE QSFP network module

C9300-NM-2Y

Catalyst 9300 2 x 25G/10G/1G SFP28 network module

C9300-NM-4M

Catalyst 9300 4 x 10G/mGig copper network module

NM-BLANK-T1=

Cisco Catalyst Type 1 network module blank spare

C9300-DNA-A-24-3Y

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

PWR-C1-1100WAC-P=

1100W AC Platinum-rated power supply spare

STACK-T1-50CM=

Data stack 50 cm cable option for C9300 and C9300X SKUs

STACK-T1-1M=

Data stack 1 m cable option for C9300 and C9300X SKUs

STACK-T1-3M=

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.

1

Ground connectors

7

StackPower connectors

2

USB3.0–SSD port

8

AC OK (input) status LED

3

BEACON LED

9

PS OK (output) status LED

4

CONSOLE (RJ-45 console port)

10

StackWise-480 port connectors

5

MGMT (RJ-45 10/100/1000 management port)

11

Power supply modules

6

Fan modules

Rear Panel of a Cisco Catalyst 9300 Series Switch

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.

1

Cisco Catalyst 9300 Series switch with optional network module1 (power supply and fan modules not shown)

9

Eight number-8 Phillips flat-head screws

2

AC power cord

10

Cable guide

3

Product documentation and compliance document

11

M4.0 x 20mm Phillips pan-head screw

4

Four rubber mounting feet

12

(Optional) RJ-45 console cable

5

Ground lug screw and ring terminal

13

(Optional) USB console cable

6

Two 19-inch mounting brackets

14

(Optional) StackWise-480/1T cable (0.5-meter, 1-meter, or 3-meter)

7

Four number-12 pan-head screws

15

(Optional) StackPower cable (0.3-meter or 1.5-meter)

8

Four number-10 pan-head screws

16

(Optional) StackWise-320 cable

cisco-catalyst-9300-switch-shipping-box

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

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    Discreet packaging and fast service. Exactly what we needed.

Questions & Answers

  • Who needs C9300-24UXB-A for higher-scale 10G/mGig UPOE and Network Advantage?

    C9300-24UXB-A fits higher-scale 24-port 10G/mGig UPOE access where Network Advantage is required for routed or segmented access.
  • What does C9300-24UXB-A add over Network Essentials license?

    C9300-24UXB-A keeps the same higher-scale 24-port 10G/mGig UPOE hardware and moves the software tier to Network Advantage.
  • Can C9300-24UXB-A support high-speed AP access?

    C9300-24UXB-A fits access points needing more than 1G wired speed, because its 24 copper downlinks support 10G/mGig operation with UPOE.
  • How does C9300-24UXB-A compare with C9300-24UB-A for mGig access?

    C9300-24UXB-A is the higher-scale member for 10G/mGig copper access. C9300-24UB-A stays on 1G copper while keeping UPOE power.
  • Can C9300-24UXB-A join higher-scale StackWise with 48UB models?

    Yes. C9300-24UXB-A can be planned with higher-scale C9300 stack peers such as C9300-48UB-A under the higher-scale stacking rule.
  • Does C9300-24UXB-A provide UPOE+ 90W or UPOE power?

    No. C9300-24UXB-A is a UPOE model. For 90W UPOE+ endpoint power, C9300-24H-A is the 24-port 1G option.
  • When is C9300-24UXB-A the wrong SKU?

    C9300-24UXB-A is wrong for Network Essentials-only purchases, standard C9300 stacks, SFP fiber access, or 90W UPOE+ endpoint designs.
  • What Network Advantage, power, and modular uplink details matter for C9300-24UXB-A?

    C9300-24UXB-A planning depends on Network Advantage features, 10G/mGig endpoint mix, UPOE wattage, higher-scale stack peers, power redundancy, and uplink bandwidth.

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DataSheet Downloads

  • C9300-24UXB-A Datasheet

  • Cisco Catalyst 9300 Switch Datasheet