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C9400-LC-12QC – 12 QSFP+, 4 QSFP28 – Catalyst 9400 line card
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C9400-LC-12QC Description
C9400-LC-12QC, also known as Cisco Catalyst 9400 12-Port 100G/40G QSFP+ line card, enables high-speed 100 Gigabit and 40 Gigabit aggregation for the Catalyst 9400 modular switches. This module provides up to 12 QSFP+/QSFP28 slots, supporting either 12x40G QSFP+ or a mix of 4x100G QSFP28 plus 4x40G QSFP+ interfaces, ideal for flexible deployment in campus core or aggregation layers. The C9400-LC-12QC delivers up to 480Gbps line-rate bandwidth per slot (with SUP-2XL/2), supporting robust jumbo frame transport, hardware-based MACsec-256 encryption, and hot-swappable installation. Designed for modern data center, enterprise core, and high-performance network environments, this 100G/40G QSFP line card enables scalable and secure fiber backbone expansion.
Product Performance
Ethernet Ports
Maximum Bandwidth
Max rated power
Quick Spec
|
Parameter |
Specification |
|---|---|
|
Product Model |
C9400-LC-12QC |
|
Port Quantity |
12 QSFP+/QSFP28 ports |
|
Port Type |
QSFP+ (40G) / QSFP28 (100G) |
|
Max Per Slot Rate |
480 Gbps (SUP-2XL/2), 240 Gbps (legacy SUP) |
|
Supervisor Support |
C9400X-SUP-2, C9400X-SUP-2XL only |
|
Jumbo Frame Support |
Up to 9216 bytes |
|
MACsec |
IEEE 802.1AE (MACsec-256) hardware support |
|
Min. Software |
IOS XE 17.12.1 or later |
|
Max Power Usage |
200W |
Key Features
Flexible 100G/40G QSFP Ports
Offers up to 12 ports of 40G QSFP+ or a mix of 4x100G QSFP28 and 4x40G QSFP+ for versatile, high-speed fiber aggregation.
Line-Rate Bandwidth
Delivers up to 480Gbps per slot with compatible supervisors, ensuring non-blocking performance for core and aggregation networks.
MACsec-256 Security
Features hardware-based IEEE 802.1AE MACsec-256 encryption for secure, wire-speed transport across all QSFP ports.
Jumbo Frame Ready
Supports jumbo frames up to 9216 bytes, enabling efficient large-scale data transfers for modern workloads.
Supervisor-2/2XL Compatibility
Optimized for use with C9400X-SUP-2 and SUP-2XL engines, ensuring seamless operation and maximum throughput.
Hot-Swappable & Reliable
Allows tool-less installation and removal in any supported chassis slot, simplifying maintenance with high MTBF and robust design.
Front View
|
1 |
STATUS LED |
5 |
Captive installation screws |
|---|---|---|---|
|
2 |
LOCATE (blue beacon) LED |
6 |
Ejector levers |
|
3 |
Vent holes for the port cage |
7 |
PORT LINK LED |
|
4 |
Model or product number |
8 |
Line card Radio Frequency Identifier (RFID) |
When 100 Gbps connectivity is configured on ports 9 and 12:
Alternatively, you can configure 100 Gbps on ports 10 and 11.
C9400-LC-12QC Slot Bandwidth by SUP & Chassis
|
Supervisor Engine |
Chassis |
Per-Slot Bandwidth |
Oversubscription |
|---|---|---|---|
|
C9400X-SUP-2XL |
C9404R |
480 Gbps |
1:1 |
|
C9407R |
480 Gbps |
1:1 | |
|
C9410R |
480 Gbps |
1:1 | |
|
C9400X-SUP-2 |
C9404R |
240 Gbps |
1:1 |
|
C9407R |
240 Gbps |
1:1 | |
|
C9410R |
240 Gbps |
1:1 | |
|
C9400-SUP-1XL |
C9404R |
240 Gbps |
1:1 |
|
C9407R |
120 Gbps |
2:1 | |
|
C9410R |
80 Gbps |
3:1 |
Product Comparison
|
Parameter |
C9400-LC-12QC |
C9400-LC-24XS | |
|---|---|---|---|
|
Ports |
12 × 40G QSFP+ |
24 × 10G SFP+ |
48 × 10G RJ-45 |
|
Breakout Support |
4 × 10G per port |
N/A |
N/A |
|
Slot Bandwidth |
Up to 480 Gbps |
Up to 480 Gbps |
Up to 480 Gbps |
|
PoE Support |
No |
No |
Yes (UPOE+, 90W) |
|
MACsec Support |
Yes (256-bit) |
Yes (256-bit) |
Yes (256-bit) |
|
Supervisor Support |
SUP-1XL, SUP-2/2XL |
SUP-2/2XL |
SUP-2/2XL only |
|
MTBF |
418,200 hours |
456,110 hours |
402,300 hours |
|
IOS XE Requirement |
16.6.1+ |
17.3.1+ |
17.6.1+ |
|
Jumbo Frames |
Supported |
Supported |
Supported |
Line Card Supervisor Module Compatibility Overview
|
– |
C9400-SUP-1 |
C9400-SUP-1XL |
C9400-SUP-1XL-Y |
C9400X-SUP-2 |
C9400X-SUP-2XL |
|---|---|---|---|---|---|
|
C9400-LC-12QC |
No |
No |
No |
Yes |
Yes |
|
C9400-LC-24S |
Yes |
Yes |
Yes |
Yes |
Yes |
|
C9400-LC-24XS |
Yes |
Yes |
Yes |
Yes |
Yes |
|
C9400-LC-24XY |
No |
No |
No |
Yes |
Yes |
|
C9400-LC-48H |
Yes |
Yes |
Yes |
Yes |
Yes |
|
C9400-LC-48HN |
Yes |
Yes |
Yes |
Yes |
Yes |
|
C9400-LC-48HX |
No |
No |
No |
Yes |
Yes |
|
C9400-LC-48P |
Yes |
Yes |
Yes |
Yes |
Yes |
|
C9400-LC-48S |
Yes |
Yes |
Yes |
Yes |
Yes |
|
C9400-LC-48T |
Yes |
Yes |
Yes |
Yes |
Yes |
|
C9400-LC-48TX |
No |
No |
No |
Yes |
Yes |
|
C9400-LC-48U |
Yes |
Yes |
Yes |
Yes |
Yes |
|
C9400-LC-48UX |
Yes |
Yes |
Yes |
Yes |
Yes |
|
C9400-LC-48XS |
No |
No |
No |
Yes |
Yes |
Specifications
| Parameter | Description |
|---|---|
| Model | C9400-LC-12QC |
| Port Count | 12 × QSFP+ |
| Port Speed | 40G or 4x10G (breakout) |
| Breakout Support | Yes (10G x4 per port) |
| MACsec | Supported, 256-bit |
| PoE | Not supported |
| Slot Bandwidth | Up to 480 Gbps |
| Supervisor Compatibility | SUP-1XL, SUP-2, SUP-2XL |
| Chassis Compatibility | C9404R, C9407R, C9410R |
| IOS XE Requirement | 16.6.1 or later |
| Energy Efficient Ethernet | IEEE 802.3az |
| Jumbo Frame | Up to 9216 bytes |
| MTBF | 418,200 hours |
Get More Information
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Quality Certifications
Customer Reviews
Questions & Answers
-
What troubleshooting steps work when the 12QC ports refuse to link?
-
Which captive-screw kit is included with the 12QC card?
-
How does the 12QC QSFP+ card differ from the 24XY hybrid model?
-
Is there a 10 G-only QSFP+ card alternative to the 12QC?
-
What data-center leaf designs leverage the 12QC QSFP28 card?
-
Which LEDs help identify disabled ports on the 12QC when split?
-
How can I hot-swap a 12QC without interrupting 40G traffic?
-
Which QSFP28 transceivers are certified for 100 G on the 12QC?
-
How do I configure 25 G breakout on the 12QC interfaces?
-
Can I mix 12QC and 24XS in the same chassis slot?
-
Which small-parts bag ships with the 12QC only?
-
How do I reset port groups when using QSFP-to-SFP adapters?
-
What maintenance schedules preserve 12QC performance?
-
Does the 12QC support 100 G MACsec line-rate?
-
Which CLI commands show 12QC port breakout status?
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