C9300X-12Y-E – 12x25G/10G/1G SFP28 Ports – Modular Uplink – Network Essentials

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Cisco C9300X-12Y-E Compatible Accessories, Modules & Spare Parts

Find compatible network modules, power supplies, fans, optics, cables and spare parts for the Cisco C9300X-12Y-E. These accessories support fiber connectivity, hardware replacement, spare inventory and network maintenance projects.

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C9300X-12Y-E Description

Twelve SFP28 fiber ports running at 25G, 10G, or 1G per port define the C9300X-12Y-E, the Network Essentials variant of Cisco's smallest Catalyst 9300X modular-uplink chassis. The default PWR-C1-715WAC-P 715W AC supply ships in slot one with the second slot open for redundancy, and because the hardware profile carries no PoE circuitry the power question at order time is purely about supply redundancy rather than power budgeting. Network Essentials on this PID covers Layer 2 switching, routed access up to 1000 OSPF routes, PVLAN, 802.1X, MACsec-128, and telemetry/SPAN visibility, which is the software scope a fixed fiber-aggregation or access role typically needs without paying for the VXLAN, LISP, MPLS, and automation entitlements reserved for Network Advantage. The uplink bay ships without a network module, so a C9300X-NM module such as the 25G C9300X-NM-8Y gets selected separately when the deployment needs more than the fixed 25G downlink density. Stacked with other Catalyst 9300X members, it runs the full 1 Tbps StackWise-1T fabric and can share power across the stack through Cisco StackPower+.

Quick Specs

Parameter

Specification

Product ID

C9300X-12Y-E

Port Count

12x 25G/10G/1G SFP28 Fiber Downlink Ports

Uplink

Modular Uplink Bay (C9300X-NM Network Module, Not Included by Default)

Network License

Network Essentials

PoE Support

Not a PoE Switch (Data Only)

Default Power Supply

PWR-C1-715WAC-P (715W AC)

Switching Capacity

1,000 Gbps Standalone / 2,000 Gbps Stacked

Forwarding Rate

744.04 Mpps Standalone / 1488 Mpps Stacked

Stacking

StackWise-1T, up to 8 Members

StackPower

Cisco StackPower+ Supported

Fan Modules

3x Field-Replaceable, N+1 Redundant

Minimum Software Release

Cisco IOS XE 16.5.1a or Later

Management Ports

10/100/1000 Ethernet Management Port, RJ-45 Console, USB Mini-Type B Console

Product Performance

Switching Bandwidth
Forwarding Rate
StackWise-1T Stack Bandwidth

Key Features

Fixed 25G SFP28 Downlink Baseline

Each of the 12 SFP28 ports runs 25G, 10G, or 1G, giving a fiber-only closet a single connector standard from access edge to aggregation without a separate copper Multigigabit tier.

Network Essentials Software Baseline

This PID covers Layer 2 switching, routed access to 1000 OSPF routes, PVLAN, 802.1X, and MACsec-128, matching the scope a static fiber-aggregation role typically needs without licensing the VXLAN, LISP, and automation stack reserved for Network Advantage.

Redundant Power Slot Without PoE Overhead

Because this hardware profile carries no PoE circuitry, the second power slot exists purely for supply redundancy, so a second PWR-C1-715WAC-P adds availability without any power-budget tradeoff to plan around.

StackWise-1T Full-Bandwidth Stacking

Stacking with other C9300X members keeps the full 1 Tbps StackWise-1T bandwidth; mixing in non-X Catalyst 9300 members drops the stack to StackWise-480 speed.

N+1 Fan Redundancy Across Three Modules

The chassis ships with three field-replaceable FAN-T2= fan modules running N+1 redundancy, so a single fan module failure does not take the switch below its required cooling capacity while a replacement module is sourced and installed.

Standard LC Optics and RJ-45 Management Plane

The SFP28 downlink ports use standard LC fiber connectors, and management runs through an RJ-45 Ethernet port with an RJ-45-to-DB9 console port, so this switch fits into an existing LC fiber patch plan and standard out-of-band console tooling without adapter cables.

Application Scenarios

Small Fiber POP Aggregation

Deployed in a point-of-presence or telecom room that terminates a handful of 25G or 10G SFP28 fiber runs where a full 24-port or 48-port chassis would leave most ports unused.

Branch or Regional Office Fiber Uplink

Used as the fiber-facing switch in a branch or regional office where the WAN or MAN handoff arrives on SFP28 optics and Layer 2/basic routed-access features cover the site’s needs.

Fiber Test or Lab Bench Switch

Placed in a lab, staging area, or proof-of-concept bench that needs genuine 25G SFP28 ports for validation work without licensing the segmentation and automation features of Network Advantage.

Product Comparison

Parameter

C9300X-12Y-E

C9300X-24Y-E

C9300X-48TX-E

Port Count

12x 25G/10G/1G SFP28 Fiber

24x 25G/10G/1G SFP28 Fiber

48x 10G/mGig Copper (100M/1G/2.5G/5G/10G)

Uplink

Modular Uplink Bay

Modular Uplink Bay

Modular Uplink Bay

Network License

Network Essentials

Network Essentials

Network Essentials

PoE Support

Not a PoE Switch (Data Only)

Not a PoE Switch (Data Only)

Not a PoE Switch (Data Only)

Default Power Supply

PWR-C1-715WAC-P (715W AC)

PWR-C1-715WAC-P (715W AC)

PWR-C1-715WAC-P (715W AC)

Switching Capacity

1,000 Gbps Standalone / 2,000 Gbps Stacked

2,000 Gbps Standalone / 3,000 Gbps Stacked

1,760 Gbps Standalone / 2,760 Gbps Stacked

Forwarding Rate

744.04 Mpps Standalone / 1488 Mpps Stacked

1488 Mpps Standalone / 2232 Mpps Stacked

1309 Mpps Standalone / 2232 Mpps Stacked

C9300X-NM-4C (4x100G/40G) Support

Not Compatible

Compatible

Compatible

License PID Family

C9300-DNA-L-E/A (25G Fiber Group)

C9300-DNA-L-E/A (25G Fiber Group)

C9300-DNA/DNX-x-48 (48-Port Copper Group)

Weight (with Default Supply)

15.0 lb (6.80 kg)

16.2 lb (7.35 kg)

14.6 lb (6.62 kg)

  • C9300X-12Y-E and C9300X-24Y-E share the identical 715W AC default supply, Network Essentials tier, and 25G/10G/1G SFP28 port speed, so the decision between them is purely about how many fiber ports the site needs now: a site that will not exceed 12 uplinks in this rack position has no capacity reason to pay for the 24-port chassis’s roughly 1.2 lb heavier default build. That said, the 24-port C9300X-24Y-E is the only path to a future 100G uplink through the C9300X-NM-4C module, since that module is excluded from the 12-port chassis entirely; a site that expects to add 100G in the next hardware cycle should size up to the 24-port or 48-port chassis before committing to the 12-port SKU. Against C9300X-48TX-E, the difference is connector type, not license or power: both run Network Essentials on the same 715W AC supply, so a fiber-fed cable plant points to the SFP28 chassis and a copper-fed plant points to the 48-port Multigigabit chassis. On the license side, this SKU orders against the C9300-DNA-L-E/A fiber-group PID family rather than the C9300-DNA/DNX-x-48 copper-group family used by C9300X-48TX-E, so the correct license line to request at Smart Account setup depends on which chassis family is actually being ordered.

Selection Guide

1. Essentials Scope for Fixed Fiber Aggregation

This PID carries Network Essentials, covering Layer 2 switching, routed access to 1000 OSPF routes, PVLAN, and MACsec-128; a deployment plan that does not call for VXLAN, LISP, MPLS segmentation, or NETCONF/RESTCONF automation can stay on this tier, but any of those requirements mean moving to the Network Advantage variant on the same 12-port hardware rather than trying to unlock them through a subscription change alone.

2. Weigh the Advantage Upgrade Path Against Buying -A Now

A deployment with a reasonable chance of needing Cisco Catalyst or Cisco DNA Advantage features such as SD-Access, ERSPAN, or app hosting within the ownership window is better served by ordering the -A hardware SKU outright, because the hardware-level Network Essentials entitlement on this -E SKU does not convert to Network Advantage through a subscription purchase alone; the official upgrade path for this platform runs through a separate license upgrade PID rather than a simple subscription swap.

3. No Field Upgrade Into C9300X-NM-4C Compatibility

The 4x100G/40G C9300X-NM-4C module is not compatible with this 12-port chassis; a plan to eventually add 100G uplinks through this specific module needs the 24-port or 48-port C9300X chassis from the outset, because this SKU cannot be upgraded into that compatibility through a module purchase alone.

4. Cable Plant Rules Out The Copper Chassis Family

Choosing between this SFP28 fiber chassis and the copper C9300X-48TX-E family should follow the existing cable plant rather than license tier or power budget, since both run the same 715W AC default supply and the same Network Essentials tier; introducing a copper Multigigabit chassis into an already-fiber cable plant adds a connector type with no license or power benefit.

Ordering Checklist

Check Item

What to Confirm

Why It Matters

License PID family

Confirm the license order uses the C9300-DNA-L-E/A (25G-fiber) PID family, not the C9300-DNA/DNX-x-48 (48-port copper) family used by other C9300X SKUs.

Ordering the wrong license PID family can stall Smart Licensing activation even though the hardware SKU is correct.

Smart Account binding

Confirm the target Smart Account and Virtual Account before ordering, since Catalyst 9300 Series SKUs are Smart Licensing-enabled.

A license entitlement tied to the wrong account can delay activation after delivery.

Second power supply need

Confirm whether a second PWR-C1-715WAC-P or PWR-C1-1100WAC-P is required for redundancy, since the default configuration ships with only one supply installed.

Running a single supply in a stack or production role removes power redundancy if that supply fails.

Network module fit

Confirm which C9300X-NM module, if any, is needed at order time and that it is on this chassis’s supported list (C9300X-NM-4C is excluded).

An unsupported network module choice cannot be corrected without a separate module purchase after delivery.

Subscription tier match

Confirm the Cisco Catalyst or Cisco DNA software subscription ordered is the Essentials tier to match this hardware SKU’s Network Essentials entitlement.

An Advantage-tier subscription paired with Network Essentials hardware does not unlock Advantage features on this SKU.

Optional Add-ons

Model

Description

C9300X-NM-8M

Catalyst 9300X 8x 10G/1G Multigigabit Network Module for the C9300X-12Y-E modular uplink bay.

C9300X-NM-8Y

Catalyst 9300X 8x 25G/10G/1G Network Module for the C9300X-12Y-E modular uplink bay.

C9300X-NM-2C

Catalyst 9300X 2x 100G/40G Network Module for the C9300X-12Y-E modular uplink bay.

PWR-C1-1100WAC-P

Optional second PWR-C1-1100WAC-P power supply for 1+1 redundant power on the default 715W configuration.

FAN-T2=

Spare field-replaceable fan module for the Catalyst 9300X chassis, supporting N+1 fan redundancy.

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 C9300X-12Y-E Network License Network Essentials
Port Count 12x 25G/10G/1G SFP28 Fiber Downlink Ports Uplink Modular Uplink Bay (C9300X-NM Network Module)
PoE Support Not a PoE Switch (Data Only) Default Power Supply PWR-C1-715WAC-P (715W AC, 2440 BTU/hr Output)
Power Supply Options Dual Redundant Slots; Optional PWR-C1-1100WAC-P (1100W AC) Switching Capacity 1,000 Gbps Standalone / 2,000 Gbps Stacked
Forwarding Rate 744.04 Mpps Standalone / 1488 Mpps Stacked MAC Address Table 32,000 Entries
IPv4 Routes 39,000 (24,000 Connected + 15,000 Indirect) IPv6 Routes 19,500 Entries
Multicast Routes 8,000 Entries QoS / ACL Entries 4,000 QoS / 8,000 ACL
DRAM / Flash 16 GB DRAM / 16 GB Flash VLAN / SVI Scale 4094 VLAN IDs, 1000 SVIs, 13,000 STP Virtual Ports
Stacking StackWise-1T, up to 8 Members, 0.5m Cable Included StackPower Cisco StackPower+ Supported
Fan Modules 3x Field-Replaceable FAN-T2=, N+1 Redundant, 20 cfm Management Ports 10/100/1000 Ethernet Mgmt, RJ-45 Console, USB Mini-Type B Console
Minimum Software Release Cisco IOS XE 16.5.1a or Later Operating Temperature -5C to 45C (up to 3000m/10,000 ft)
Storage Temperature -40C to 70C Humidity 5%-90% Non-Condensing
Acoustic Standard ISO 7779 / ISO 9296, Bystander Position, 25C Ambient Certifications UL 60950-1, IEC 60950-1, EN 55032 Class A, CISPR 32 Class A, RoHS 5
Physical Dimensions Chassis Only 1.73 x 17.5 x 16.1 in; with Default Supply 1.73 x 17.5 x 17.6 in Weight 15.0 lb (6.80 kg) with Default Supply
MTBF 265,650 Hours Warranty Cisco Enhanced Limited Lifetime Warranty (E-LLW)
Connectors SFP28 LC Fiber; RJ-45 Management/Console; StackWise Proprietary Ordering Structure Hardware + Network Essentials + Cisco Catalyst/DNA Essentials Subscription

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Questions & Answers

  • What does C9300X-12Y-E provide on the front panel?

    C9300X-12Y-E provides 12 SFP28 downlink ports for 1G, 10G, or 25G fiber connections, with modular uplink expansion and a Network Essentials base license.
  • Is C9300X-12Y-E a PoE access switch?

    C9300X-12Y-E is not a PoE copper access switch; it targets fiber aggregation, server handoff, or high-speed access designs that need 12 SFP28 ports.
  • How is C9300X-12Y-E different from C9300X-12Y-A?

    C9300X-12Y-E uses the same 12-port SFP28 hardware as C9300X-12Y-A, while the E suffix identifies the Network Essentials software level.
  • What uplink planning matters for C9300X-12Y-E?

    C9300X-12Y-E has modular uplinks, so port planning separates the 12 SFP28 downlinks from the chosen C9300X network module for 10G, 25G, 40G, 100G, or mGig expansion.
  • Can C9300X-12Y-E run in a StackWise design?

    C9300X-12Y-E supports StackWise-1T in a pure C9300X stack and can operate at lower stack bandwidth when mixed with compatible modular Catalyst 9300 members.
  • Which optics question matters most for C9300X-12Y-E?

    C9300X-12Y-E buyers often check whether SFP28 ports will run at 25G, 10G, or 1G with the exact Cisco transceiver and peer-device speed settings.
  • When does C9300X-12Y-E fit fiber-heavy designs?

    C9300X-12Y-E fits fiber-heavy closets, small aggregation layers, and server-facing connections where SFP28 density matters more than UPOE+ or RJ-45 endpoint power.
  • What power and rack details affect C9300X-12Y-E ordering?

    C9300X-12Y-E ships as a modular-uplink C9300X fiber switch with a 715W AC power supply class, field-replaceable fans, and separate choices for uplink modules and optics.

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