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C9300X-12Y-E – 12 Ports – modular uplinks – access switch
10/mo Solds
| Weight | 12 kg |
|---|---|
| Dimensions | 58 × 57 × 24 cm |
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C9300X-12Y-E Description

The Cisco Catalyst C9300X-12Y-E is a high-density, data-only fiber access switch designed for campus and data-center edge deployments requiring ultra-high throughput and flexible uplink configurations. It features 12 SFP28 fiber ports that support multi-rate operation at 25 Gbps, 10 Gbps, or 1 Gbps, enabling seamless migration to higher-speed optics as network demands grow. Uplink connectivity is modular: customers can choose from any combination of C9300X network modules—such as 8×25 G/10 G/1 G SFP (NM-8Y), 2×100 G/40 G QSFP (NM-2C), or 4×100 G/40 G QSFP (NM-4C)—to architect optimal aggregation or core layer connectivity without forklift upgrades.
Product Performance
Quick Specs
|
Parameter 2008_96d8ea-5d> |
Specification 2008_77d6a9-5a> |
|---|---|
|
Model 2008_8e6648-51> |
C9300X-12Y-E 2008_b9c349-bd> |
|
Switching Capacity 2008_21d361-ba> |
1,000 Gbps standalone / 2,000 Gbps stacked 2008_acffbb-c2> |
|
Forwarding Rate 2008_110325-b7> |
744.04 Mpps standalone / 1,488 Mpps stacked 2008_897500-20> |
|
Downlink Ports 2008_3d5b34-e2> |
12 × multi-rate SFP28 (25 G/10 G/1 G) fiber 2008_b15c19-db> |
|
Uplink Module Slots 2008_dfe447-c2> |
4 slots (choose from NM-8Y, NM-2C, NM-4C) 2008_3e5b3f-b1> |
|
Stacking Bandwidth 2008_6f1bcf-c6> |
StackWise-1T (1 Tbps per stack link) 2008_b834fa-91> |
|
DRAM 2008_96de1a-7b> |
16 GB 2008_abee04-70> |
|
Flash Storage 2008_003bf3-6e> |
16 GB 2008_f7849d-6b> |
|
Power Supply 2008_229236-f5> |
1 × 715 W AC (PWR-C1-715WAC-P) 2008_276806-0f> |
Key Features
Modular Uplink Architecture
Four module slots support NM-8Y (8×25 G/10 G/1 G SFP), NM-2C (2×100 G/40 G QSFP), or NM-4C (4×100 G/40 G QSFP), enabling tailored aggregation path and investment protection.
StackWise-1T Technology
Stack up to eight switches with 1 Tbps per stack link (2 Tbps total), enabling unified management and seamless scale-out. Mixed stacking with Catalyst 9300 at StackWise-480 speeds is supported.
High-Speed SFP28 Fiber Ports
Twelve multi-rate ports running at 25 Gbps, 10 Gbps, or 1 Gbps, delivering line-rate 25 GbE for high-density uplink or server aggregation.
UADP 2.0Sec ASIC
Provides 100 Gbps hardware IPsec and up to 100 Gbps MACsec, enabling high-performance encryption without CPU offload.
Advanced Security Suite
Hardware-anchored Secure Boot, SUDI, MACsec 256-bit, Encrypted Traffic Analytics (ETA), and Cisco TrustSec for zero-trust segmentation.
Model-Driven Telemetry
Real-time streaming via gNMI/YANG, flexible NetFlow, and Cisco Live-Upgrade for proactive assurance and rapid troubleshooting.
Applications Scenarios
Acts as a 12×25 Gbps fiber leaf in small-scale spine-leaf fabrics, aggregating multiple 10 GbE server links.
Provides high-performance 25 GbE fiber interconnect to distribution or core, with modular uplink flexibility for 100 Gbps migration.
Delivers high-throughput fiber access at building entrances, integrated with Cisco DNA Center for zero-touch provisioning and real-time analytics.
Product Comparison
|
Parameter 2008_5ba853-49> |
C9300X-12Y-E 2008_d6f548-9e> |
C9300X-24Y-E 2008_b6a4fb-84> |
C9300X-48TX-M 2008_c654c5-0f> |
|---|---|---|---|
|
Downlink Ports 2008_c8ff67-0f> |
12 × 25 G/10 G/1 G SFP28 2008_2af3e9-a9> |
24 × 25 G/10 G/1 G SFP28 2008_36a47d-0b> |
48 × 10 G/1 G mGig SFP+ (10 G/5 G/2.5 G/1 G/100 M) 2008_215ea3-7a> |
|
Uplink Module Slots 2008_9acaf0-5f> |
4 modular slots (e.g., NM-8Y, NM-2C, NM-4C) 2008_1221b6-77> |
4 modular slots 2008_159d1c-cd> |
4 modular slots (e.g., NM-8M, NM-2C, NM-4C) 2008_3d38ea-4b> |
|
Switching Capacity 2008_c64385-57> |
1,000 Gbps standalone / 2,000 Gbps stacked 2008_696491-e3> |
2,000 Gbps standalone / 3,000 Gbps stacked 2008_475fe3-54> |
1,760 Gbps standalone / 2,760 Gbps stacked 2008_c108b2-85> |
|
Forwarding Rate 2008_491c9c-b1> |
744.04 Mpps standalone / 1,488 Mpps stacked 2008_c72667-0a> |
1,488 Mpps standalone / 2,232 Mpps stacked 2008_b9f755-2a> |
1,309 Mpps standalone / 2,232 Mpps stacked 2008_8380a9-9a> |
|
Stacking Bandwidth 2008_292435-ab> |
1 Tbps (StackWise-1T) 2008_1d9ed9-b0> |
1 Tbps (StackWise-1T) 2008_327e84-6a> |
1 Tbps (StackWise-1T) 2008_3e229a-03> |
|
DRAM 2008_f7dde4-56> |
16 GB 2008_38c176-b2> |
16 GB 2008_3884ed-9b> |
16 GB 2008_c456e4-53> |
|
Flash Storage 2008_1a7ef7-a8> |
16 GB 2008_dd756b-19> |
16 GB 2008_a0cbbf-65> |
16 GB 2008_c13f81-43> |
|
Power Supply 2008_442f54-08> |
1 × 715 W AC (PWR-C1-715WAC-P) 2008_32d986-79> |
1 × 715 W AC (PWR-C1-715WAC-P) 2008_937c8f-75> |
1 × 715 W AC (PWR-C1-715WAC-P) 2008_ae54c3-3b> |
|
License Image 2008_0dd2f8-b0> |
Network Essentials (“-E”) 2008_c1139c-71> |
Network Essentials (“-E”) 2008_223577-e8> |
Meraki Advanced (“-M”) 2008_236e6d-17> |
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 |
|---|---|---|---|
| Model | C9300X-12Y-E | Chassis Dimensions (H×W×D) – chassis only | 4.4 × 44.5 × 40.9 cm (1.73″×17.5″×16.1″) |
| Chassis Dimensions with default PSU | 4.4 × 44.5 × 44.7 cm (1.73″×17.5″×17.6″) | Chassis Dimensions with secondary PSU | 4.4 × 44.5 × 48.8 cm (1.73″×17.5″×19.2″) |
| Weight (with default PSU) | 6.80 kg (15.0 lb) | DRAM | 16 GB |
| Flash Storage | 16 GB | MAC Address Table | 32,000 entries |
| IPv4 Routes | 39,000 (24,000 direct + 15,000 indirect) | IPv6 Routing Entries | 19,500 entries |
| Multicast Routing Scale | 8,000 entries | QoS Scale Entries | 4,000 entries |
| ACL Scale Entries | 8,000 entries | Packet Buffer | 16 MB |
| Flexible NetFlow Entries | 64,000 flows | VLAN IDs | 4,094 |
| Total SVIs | 1,000 | Jumbo Frame Support | Up to 9,198 bytes |
| Switching Capacity | 1,400 Gbps | Switching Capacity (with stacking) | 2,400 Gbps |
| Forwarding Rate | 1,041 Mpps | Forwarding Rate (with stacking) | 1,785 Mpps |
| Downlink Ports | 12 × 25G/10G/1G SFP28 | Uplink Slots | 4 × modular SFP28 slots |
| Default Power Supply | PWR-C1-715WAC-P (715 W AC) | Available PoE | None |
| MTBF | 265,650 hours | Operating Temperature | −5 °C to +45 °C |
| Storage Temperature | −40 °C to +70 °C | AC Input Voltage | 100–240 VAC, 50–60 Hz |
| Host CPU | x86 4-core | SUDI Support | Secure Universal Device ID |
| Trustworthy System | Secure Boot | Software License | Network Essentials |
Get More Information
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Quality Certifications
Customer Reviews
Questions & Answers
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Are there compatibility concerns I should be aware of when integrating the C9300X-12Y-E into my existing network?
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How easy is it to configure the C9300X-12Y-E for IPv6 usage?
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What should I do if my C9300X-12Y-E firmware update fails?
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What’s the typical lifespan of the C9300X-12Y-E in regular usage scenarios?
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Is there a recommended alternative if I can't find the C9300X-12Y-E?
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Can the C9300X-12Y-E operate effectively in data center environments?
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What diagnostic tools are available for troubleshooting the C9300X-12Y-E?
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Can the C9300X-12Y-E be managed remotely, and how?
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What steps should I take if the C9300X-12Y-E experiences connectivity issues?
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Does the C9300X-12Y-E require specific environmental conditions for optimal operation?
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What advanced security features does the C9300X-12Y-E offer?
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How loud is the C9300X-12Y-E when operating at full capacity?
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Does the C9300X-12Y-E support Power over Ethernet (PoE), and what standards does it comply with?
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How energy-efficient is the C9300X-12Y-E compared to similar devices?
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How do I perform a software update on the C9300X-12Y-E?
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What are common hardware issues reported by users of the C9300X-12Y-E?
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What types of interfaces are provided by the C9300X-12Y-E?
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Can I stack multiple units of the C9300X-12Y-E together, and what's the limit?
Warranty
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Clear customs quickly. Good paperwork.
Verified genuine. We only buy authentic gear.
It arrived just in time. Excellent handling.
Handles the traffic from our high-density user environment flawlessly. The lead time from our supplier was also better than expected.
Expensive unit, handled with care. Palletized.