What PoE budget does C9300-24U-E reach with a 1900W primary supply?

With a 1900W primary supply, every second-supply combination gives 1440W on C9300-24U-E, which is the UPOE ceiling for this model. The default 1100W primary with a 350W second supply gives 1180W, so a small second supply still helps. A second 1100W supply also reaches 1440W.

Can C9300-24U-E stack with C9300-24UB-E higher-scale switches?

No. The higher-scale models C9300-24UB-E, C9300-24UXB-E and C9300-48UB-E stack only with each other, so they cannot join a stack with C9300-24U-E. All members of a stack also need the same license level and the same IOS XE image.

Do UPOE endpoints on C9300-24U-E recover quickly after a power loss?

Fast PoE restores endpoint power in under 30 s from stored power once the switch recovers, and it needs perpetual-poe-ha on the port. Perpetual PoE covers soft reloads and stacks but not a power loss, front-end processor removal or hibernation, so plan UPS cover for the closet.

Which IOS XE release first supported C9300-24U-E?

C9300-24U-E was introduced in Cisco IOS XE Everest 16.5.1a, per the Catalyst 9300 release notes for 17.17.x. Stack members need the same IOS XE image and license, so upgrade every member to a common release before joining this switch to a stack.

How many C9300-24U-E switches can a StackPower ring join?

A StackPower ring joins up to four switches, and the XPS 2200 expandable power system raises that to eight. StackPower is available only on modular-uplink models such as C9300-24U-E, and an eight-member data stack can hold two power stacks, so plan the power stacks before cabling.

Which USB SSD options can C9300-24U-E use?

C9300-24U-E takes a USB 3.0 SSD in the rear slot, either SSD-120G with 120 GB or SSD-240G with 240 GB. Both are orderable across the Catalyst 9300 family. The Network Essentials license does not change this hardware option, and the front USB Type A port is a separate flash-drive port.

C9300-24U-E – 24x1G UPOE Ports – Modular Uplink – 830W PoE Budget – Network Essentials

Name: C9300-24U-E - Cisco 24-Port UPOE Network Essentials Switch
Brand: Cisco
SKU: C9300-24U-E
Price: 3292.55 USD
Availability: InStock
Rating: 4.86 (14 reviews)

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Model: C9300-24U-E

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Rated 4.86 out of 5 based on 14 customer ratings

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C9300-24U-E Description

The C9300-24U-E is a Cisco Catalyst 9300 Series stackable access switch for campus closets that connect UPOE phones, displays and access points. The switch has 24 10/100/1000 Cisco UPOE ports, an 830W PoE budget on the default 1100W supply, a modular uplink slot and 208 Gbps of switching capacity. The -E suffix carries Network Essentials, which covers Layer 2 and OSPF routing up to 1,000 routes but not BGP, VXLAN or MPLS.

Quick Specs

Parameter	Specification
Product ID	C9300-24U-E
Product type	Stackable access switch with modular uplinks
Downlink ports	24 x 10/100/1000 Cisco UPOE copper ports
Uplink architecture	Modular uplink slot; C9300-NM-8X is the default C9300 order selection unless changed
Network license	Network Essentials
Default power supply	PWR-C1-1100WAC-P
Default PoE budget	830W
Stacking architecture	StackWise-480
StackPower	Supported
Expanded PoE budget	1440W with supported secondary power supply configuration
Switching capacity	208 Gbps standalone; 688 Gbps with stacking
Forwarding rate	154.76 Mpps standalone; 511.90 Mpps with stacking

Product Performance

Ports

Default PoE Budget

Standalone Switching Capacity

Key Features

UPOE Budget Across 24 Ports

Each port can deliver up to 60W, and the default 1100W supply leaves 830W for PoE, about 34W per port if all 24 draw power at once. A second 1100W supply lifts the budget to 1440W, which covers a full 60W on every port.

Modular Uplink Slot

Uplinks come from a Catalyst 9300 network module such as the 8 x 10G/1G SFP+ C9300-NM-8X or the 2 x 40G C9300-NM-2Q, and the default configuration ships without one. Changing uplink speed later means swapping the module rather than the switch.

StackWise-480 And StackPower

Up to eight switches join one stack over 480 Gbps StackWise cables, and members must carry the same license level. StackPower links up to four switches in a ring so their supplies share one power pool.

Network Essentials Feature Set

Network Essentials covers Layer 2, routed access with OSPF up to 1,000 routes, 802.1X and MACsec-128. BGP, VXLAN, MPLS and MACsec-256 need Network Advantage.

Single Supply, Optional Second

The default 1100W supply sets the 830W budget, and a second supply is optional rather than required for UPOE. Adding one raises the budget and gives power redundancy.

Dual Power Supply And Three Fans

Two supply slots allow redundancy, though the switch ships with a single supply in slot 1. Three field-replaceable fans provide N+1 cooling.

Application Scenarios

Campus Closet With UPOE Endpoints

In a campus building, the switch powers UPOE endpoints such as video phones and displays from its 24 copper ports and hands their traffic to the distribution layer over the uplink module.

Layer 2 Access In A Branch Stack

A branch office can stack several switches under StackWise-480 as a Layer 2 access layer, with routed access limited to what Network Essentials provides.

Wireless Closet On Copper Gigabit

A closet serving Wi-Fi access points on Gigabit links can feed their power from the PoE budget while the 8 x 10G SFP+ uplink module carries aggregated traffic toward the core.

Product Comparison

Parameter	C9300-24U-E	C9300-24U-A	C9300-24P-E	C9300-48U-E
Total 10/100/1000, Multigigabit copper or SFP fiber	24 x 10/100/1000 UPOE	24 x 10/100/1000 UPOE	24 x 10/100/1000 PoE+	48 x 10/100/1000 UPOE
Uplink configuration	Modular uplinks	Modular uplinks	Modular uplinks	Modular uplinks
Network license	Network Essentials	Network Advantage	Network Essentials	Network Essentials
Default AC power supply	PWR-C1-1100WAC-P	PWR-C1-1100WAC-P	PWR-C1-715WAC-P	PWR-C1-1100WAC-P
Available PoE power with default power supply	830W	830W	445W	822W
Maximum PoE power with 1100W secondary PS	1440W	1440W	720W	1800W
Stack bandwidth	480 Gbps	480 Gbps	480 Gbps	480 Gbps
Switching capacity	208 Gbps	208 Gbps	208 Gbps	256 Gbps

C9300-24U-E and C9300-24U-A have the same 24-port UPOE hardware, 830W default PoE budget and StackWise-480 support; C9300-24U-E carries Network Essentials, while C9300-24U-A carries Network Advantage. A site that needs Network Advantage from day one orders C9300-24U-A, or raises an installed C9300-24U-E later with a C9300-LIC= term (C9300-24-E-A-3, -5 or -7), which cannot be placed on the switch order. A closet with only PoE+ devices can use C9300-24P-E, whose 715W default supply gives 445W of PoE against 830W. Above 24 ports, C9300-48U-E gives 48 UPOE ports on an 822W default budget and 256 Gbps standalone switching against 208 Gbps.

PoE Power Planning

Planning Item	Cisco Confirmed Value	Order Impact
UPOE port class	Cisco UPOE extends PoE+ to 60W per port	Confirm powered endpoint requirements before replacing this SKU with a PoE+ model
Default PoE budget	C9300-24U-E is listed with 830W available PoE and a PWR-C1-1100WAC-P default supply	Match endpoint count and endpoint draw to the switch-level PoE budget
Power supply design	The ordering flow adds the primary supply by hardware model and selects a secondary supply by default unless no secondary supply is chosen	Decide whether the second supply should remain in the quote or be removed with the Cisco no-secondary-supply option
StackPower	C9300-24U-E supports StackPower	Include StackPower cables only when the site power design requires shared power across stack members

Ordering Checklist

Subscription: Select C9300-DNA-E-24-3Y, -5Y or -7Y, the 24-port Cisco DNA Essentials term. New orders need a subscription of the same tier as the network license, and the configurator defaults to Advantage, so change the tier for an Essentials switch.
Uplink module: Keep the default C9300-NM-8X, choose another C9300-NM module, or select C9300-NM-NONE. The uplink slot ships with C9300-NM-8X unless changed.
Second power supply: A second PWR-C1-1100WAC-P is added by default; C9300-SPS-NONE removes it. Without it the PoE budget stays at 830W instead of up to 1440W.
Stack and StackPower cables: A 50 cm StackWise cable and a 30 cm StackPower cable are added by default; C9300-STACK-NONE and C9300-SPWR-NONE remove them. A stack needs a StackWise cable of the right length, so a stand-alone switch can drop both.
Power cords: Select the cord type for the destination country. Two cords ship, and the configurator defaults to North American cords.

Optional Add-ons

Model	Description
C9300-NM-8X	Cisco Catalyst 9300 8 x 10GE SFP+ network module selected by default for C9300 modular-uplink SKUs
C9300-NM-4G	Cisco Catalyst 9300 4 x 1GE SFP network module
C9300-NM-2Q	Cisco Catalyst 9300 2 x 40GE QSFP+ network module
C9300-NM-2Y	Cisco Catalyst 9300 2 x 25GE SFP28 network module
C9300-NM-4M	Cisco Catalyst 9300 4 x Multigigabit network module
C9300-DNA-E-24-3Y	C9300 Cisco DNA Essentials 24-port 3-year term license
C9300-DNA-E-24-5Y	C9300 Cisco DNA Essentials 24-port 5-year term license
C9300-DNA-E-24-7Y	C9300 Cisco DNA Essentials 24-port 7-year term license
STACK-T1-50CM	50CM type 1 stacking cable for Catalyst 9300 modular-uplink models
STACK-T1-1M	1M type 1 stacking cable for Catalyst 9300 modular-uplink models
STACK-T1-3M	3M type 1 stacking cable for Catalyst 9300 modular-uplink models

Specifications

Parameter	Specification	Parameter	Specification
Product ID	C9300-24U-E	Product type	Stackable access switch with modular uplinks
Network license	Network Essentials	Downlink ports	24 x 10/100/1000 Cisco UPOE copper ports
Uplink architecture	C9300 modular uplink slot with C9300-NM-8X default order selection	Network module order selection	C9300-NM-8X selected by default; alternate C9300-NM or C9300-NM-NONE can be selected
Supported network modules	C9300-NM-4G, C9300-NM-8X, C9300-NM-2Q, C9300-NM-2Y, C9300-NM-4M	Default power supply	PWR-C1-1100WAC-P
Default PoE budget	830W	Power supply design	Primary supply added by hardware model; secondary supply selected by default unless C9300-SPS-NONE is chosen
Fan modules	3 field-replaceable fans	Stacking architecture	StackWise-480
StackPower	Supported	Switching capacity	208 Gbps standalone
Switching capacity with stacking	688 Gbps	Forwarding rate	154.76 Mpps standalone
Forwarding rate with stacking	511.90 Mpps	DRAM	8 GB
Flash	16 GB	Minimum software release	Cisco IOS XE Everest 16.5.1a
VLAN IDs	4094	Jumbo frames	9198 bytes
Dimensions	1.73 x 17.5 x 19.2 in. (4.4 x 44.5 x 48.8 cm)	Weight	7.54 kg (16.63 lb)

Quality Certifications

Customer Reviews

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4.9

Rated 4.86 out of 5

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Sharon Allen

Posted on 17/01/2026

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Carrier coordination was smooth. No missed deliveries or rescheduling.

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Just placed our fourth order. Every unit has been genuine and performed perfectly.

Austin Liu

Posted on 06/12/2025

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5.0

Inspection passed with no defects logged. Clean batch.

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Efficient processing. We will order again.

Clint Barton

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On target. Delivery was exactly when promised.

Questions & Answers

Can C9300-24U-E be stacked?
Yes. C9300-24U-E stacks up to 8 switches over 480 Gbps StackWise cables, and members must carry the same license level. StackPower links up to 4 switches in a ring so their supplies share one power pool.
What does Network Essentials on C9300-24U-E include?
Network Essentials on C9300-24U-E covers Layer 2, routed access with OSPF up to 1,000 routes, 802.1X and MACsec-128. BGP, VXLAN, MPLS and MACsec-256 are not part of this tier. The -E suffix carries this tier on the switch.
What PoE budget does C9300-24U-E reach with a 1900W primary supply?
With a 1900W primary supply, every second-supply combination gives 1440W on C9300-24U-E, which is the UPOE ceiling for this model. The default 1100W primary with a 350W second supply gives 1180W, so a small second supply still helps. A second 1100W supply also reaches 1440W.
Can C9300-24U-E stack with C9300-24UB-E higher-scale switches?
No. The higher-scale models C9300-24UB-E, C9300-24UXB-E and C9300-48UB-E stack only with each other, so they cannot join a stack with C9300-24U-E. All members of a stack also need the same license level and the same IOS XE image.
Do UPOE endpoints on C9300-24U-E recover quickly after a power loss?
Fast PoE restores endpoint power in under 30 s from stored power once the switch recovers, and it needs perpetual-poe-ha on the port. Perpetual PoE covers soft reloads and stacks but not a power loss, front-end processor removal or hibernation, so plan UPS cover for the closet.
Which IOS XE release first supported C9300-24U-E?
C9300-24U-E was introduced in Cisco IOS XE Everest 16.5.1a, per the Catalyst 9300 release notes for 17.17.x. Stack members need the same IOS XE image and license, so upgrade every member to a common release before joining this switch to a stack.
How many C9300-24U-E switches can a StackPower ring join?
A StackPower ring joins up to four switches, and the XPS 2200 expandable power system raises that to eight. StackPower is available only on modular-uplink models such as C9300-24U-E, and an eight-member data stack can hold two power stacks, so plan the power stacks before cabling.
Which USB SSD options can C9300-24U-E use?
C9300-24U-E takes a USB 3.0 SSD in the rear slot, either SSD-120G with 120 GB or SSD-240G with 240 GB. Both are orderable across the Catalyst 9300 family. The Network Essentials license does not change this hardware option, and the front USB Type A port is a separate flash-drive port.

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C9300-24U-ENew, factory-sealed · 3-year warranty · In stock
C9300-DNA-ERequired with each C9300-24U-E

C9300-24U-E – 24x1G UPOE Ports – Modular Uplink – 830W PoE Budget – Network Essentials

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C9300-24U-E Description

Quick Specs

Product Performance

Key Features

Application Scenarios

Product Comparison

PoE Power Planning

Ordering Checklist

Optional Add-ons

Specifications

Quality Certifications

Customer Reviews

Questions & Answers

Can C9300-24U-E be stacked?

What does Network Essentials on C9300-24U-E include?

What PoE budget does C9300-24U-E reach with a 1900W primary supply?

Can C9300-24U-E stack with C9300-24UB-E higher-scale switches?

Do UPOE endpoints on C9300-24U-E recover quickly after a power loss?

Which IOS XE release first supported C9300-24U-E?

How many C9300-24U-E switches can a StackPower ring join?

Which USB SSD options can C9300-24U-E use?

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