C9600-LC-40YL4CD – 40xSFP56 – 2xQSFP56 and 2xQSFP-DD – Catalyst 9600 Line Card
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C9600-LC-40YL4CD Description
C9600-LC-40YL4CD is a Cisco Catalyst 9600 Series combo line card for the Catalyst 9606R modular switch, used to expand a chassis with high-density campus or aggregation Ethernet ports. It provides 40 SFP56 ports plus 2 QSFP56 and 2 QSFP-DD ports, supports C9600X-SUP-2 and C9600-SUP-1 supervisors with supervisor-dependent speed capabilities, installs in Catalyst 9606R slots 1, 2, 5, and 6, and requires Cisco IOS XE 17.7.1 or later. With C9600X-SUP-2, the line card supports 50G, 25G, and 10G SFP56 operation plus QSFP56 and QSFP-DD uplink speeds up to 400G on the QSFP-DD ports; with C9600-SUP-1, it supports lower SFP/SFP28 speeds and does not support QSFP-DD operation.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
C9600-LC-40YL4CD |
|
Product type |
Combo line card |
|
Supported chassis |
Cisco Catalyst 9606R |
|
Supervisor compatibility |
C9600X-SUP-2 and C9600-SUP-1 |
|
Installation slot rule |
Catalyst 9606R slots 1, 2, 5, and 6 |
|
SFP56 ports |
40 |
|
SFP56 speed with C9600X-SUP-2 |
50G, 25G, and 10G |
|
SFP/SFP28 speed with C9600-SUP-1 |
25G, 10G, and 1G |
|
QSFP56 ports with C9600X-SUP-2 |
2 ports supporting 200G, 100G, and 40G |
|
QSFP-DD ports with C9600X-SUP-2 |
2 ports supporting 400G, 200G, 100G, and 40G |
|
Minimum software release |
Cisco IOS XE 17.7.1 |
|
Bandwidth per slot |
6.4 Tbps full duplex with C9600X-SUP-2; 2.4 Tbps full duplex with C9600-SUP-1 |
Key Features
The card combines 40 SFP56 ports with QSFP56 and QSFP-DD positions, so the BOM must be checked against both the access-side port count and the higher-speed uplink requirement.
C9600X-SUP-2 enables the 400G and 200G QSFP-DD modes on this card, while C9600-SUP-1 supports the documented SFP and QSFP modes without QSFP-DD operation.
Cisco lists this line card for Catalyst 9606R slots 1, 2, 5, and 6, so it should be planned around available payload slots rather than supervisor positions.
Cisco documents Cisco IOS XE 17.7.1 as the minimum software release for this product ID with both supported supervisor options.
When the card runs with C9600X-SUP-2, Cisco documents port-group speed restrictions that can affect mixed 50G, 25G, and 10G SFP56 optic plans.
The mixed SFP56, QSFP56, and QSFP-DD layout separates C9600-LC-40YL4CD from C9600-LC-48YL SFP-density builds and C9600-LC-24C QSFP-density builds.
Application Scenarios
C9600-LC-40YL4CD fits a Catalyst 9606R design that needs many SFP56 connections plus a small set of QSFP56 or QSFP-DD ports for higher-speed uplinks.
Select this line card for projects built around C9600X-SUP-2 when the order needs Cisco-documented 400G or 200G QSFP-DD operation on the same card as 50G SFP56 ports.
Use this model only when the port mix matches the fiber plan. A C9600-LC-48YL order keeps all 48 ports in the SFP family, while C9600-LC-24C shifts the design toward QSFP density.
Product Comparison
|
Parameter |
C9600-LC-40YL4CD | ||
|---|---|---|---|
|
Product type |
Combo SFP56, QSFP56, and QSFP-DD line card |
48-port SFP56 line card |
24-port QSFP28 line card |
|
Supported chassis |
Catalyst 9606R |
Catalyst 9606R |
Catalyst 9606R |
|
Supervisor compatibility |
C9600X-SUP-2 and C9600-SUP-1 |
C9600X-SUP-2 and C9600-SUP-1 |
C9600X-SUP-2 and C9600-SUP-1 |
|
Installation slot rule |
Slots 1, 2, 5, and 6 |
Slots 1, 2, 5, and 6 |
Slots 1, 2, 5, and 6 |
|
SFP-family ports |
40 SFP56 ports |
48 SFP56 ports |
Not an SFP-family line card |
|
QSFP-family ports |
2 QSFP56 ports and 2 QSFP-DD ports |
No QSFP ports on this line-card model |
24 QSFP28 ports |
|
Maximum speeds with C9600X-SUP-2 |
SFP56 up to 50G, QSFP56 up to 200G, and QSFP-DD up to 400G |
SFP56 up to 50G |
QSFP28 up to 100G |
|
Capability with C9600-SUP-1 |
40 ports of 25G, 10G, or 1G plus 2 ports of 100G or 40G |
48 ports of 25G, 10G, or 1G |
24 ports of 40G or 12 ports of 100G |
|
Bandwidth per slot with C9600X-SUP-2 |
6.4 Tbps full duplex |
4.8 Tbps full duplex |
4.8 Tbps full duplex |
|
Bandwidth per slot with C9600-SUP-1 |
2.4 Tbps full duplex |
2.4 Tbps full duplex |
2.4 Tbps full duplex |
|
Minimum software release |
Cisco IOS XE 17.7.1 |
Cisco IOS XE 17.7.1 |
Cisco IOS XE 17.7.1 |
- In a C9600-LC-40YL4CD vs C9600-LC-48YL comparison, the table-backed difference is port format: C9600-LC-40YL4CD adds QSFP56 and QSFP-DD positions, while C9600-LC-48YL keeps all ports in the SFP56 family.
- The C9600-LC-40YL4CD difference from C9600-LC-24C is the balance of port types; C9600-LC-40YL4CD keeps 40 SFP56 ports, while C9600-LC-24C is the QSFP28-density card.
- For buyers comparing C9600-LC-40YL4CD vs C9600-LC-48YL or C9600-LC-24C, the which model to choose check should start with required connector family, required top speed, supervisor model, and slot availability.
Selection Guide
1. Match the port mix before the quote is built
Choose C9600-LC-40YL4CD when the chassis needs SFP56 density and a small set of QSFP56 or QSFP-DD high-speed ports on the same Catalyst 9600 line card.
2. Keep C9600-LC-48YL for SFP-only expansion
Select C9600-LC-48YL when the design needs 48 SFP-family ports and does not require QSFP56 or QSFP-DD positions on that line card.
3. Use C9600-LC-24C for QSFP concentration
Review C9600-LC-24C when the order is centered on QSFP28 density rather than a combined SFP56 and QSFP uplink layout.
4. Validate supervisor and software together
Confirm C9600X-SUP-2 or C9600-SUP-1, Cisco IOS XE 17.7.1 or later, and the documented slot placement before approving the line card for staging.
Ordering Checklist
|
Review Area |
Confirm |
Procurement Risk |
|---|---|---|
|
Product ID |
C9600-LC-40YL4CD |
Avoids substituting the SFP-only C9600-LC-48YL or the QSFP-density C9600-LC-24C |
|
Chassis |
Cisco Catalyst 9606R |
Keeps the order tied to the chassis documented for this Catalyst 9600 line-card family |
|
Slot plan |
Slots 1, 2, 5, and 6 |
Prevents planning the line card for an unsupported supervisor or non-payload position |
|
Supervisor model |
C9600X-SUP-2 or C9600-SUP-1 |
Determines whether QSFP-DD operation is available and which port speeds can be used |
|
Software baseline |
Cisco IOS XE 17.7.1 or later |
Aligns the deployment with the Cisco minimum software release for this product ID |
|
Optic speed grouping |
C9600X-SUP-2 SFP56 port-group speed restrictions |
Reduces the risk of mixing unsupported adjacent SFP56 speed combinations |
|
QSFP-DD requirement |
C9600X-SUP-2 for QSFP-DD ports |
Prevents ordering QSFP-DD optics for a C9600-SUP-1 deployment where those ports are not supported |
C9600-LC-40YL4CD Front Panel Components
|
1 |
Status LED |
5 |
2 x 400G/200G/100G/40G QSFP-DD ports |
|
2 |
Locate (Blue beacon) LED |
6 |
Port Link LEDs |
|
3 |
40 x 50G/25G/10G SFP56 ports |
7 |
Ejector levers |
|
4 |
2 x 200G/100G/40G QSFP56 ports |
8 |
RFID embedded on the left ejector lever |
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product ID | C9600-LC-40YL4CD | Product type | Combo line card |
| Supported chassis | Cisco Catalyst 9606R | Installation slot rule | Slots 1, 2, 5, and 6 |
| Supervisor compatibility | C9600X-SUP-2 and C9600-SUP-1 | Minimum software release | Cisco IOS XE 17.7.1 |
| SFP56 ports | 40 | SFP56 speed with C9600X-SUP-2 | 50G, 25G, and 10G |
| SFP/SFP28 speed with C9600-SUP-1 | 25G, 10G, and 1G | QSFP56 ports with C9600X-SUP-2 | 2 ports supporting 200G, 100G, and 40G |
| QSFP-DD ports with C9600X-SUP-2 | 2 ports supporting 400G, 200G, 100G, and 40G | QSFP-DD support with C9600-SUP-1 | Not supported |
| QSA adapter support with C9600X-SUP-2 | CVR-QSFP-SFP10G with 10G transceivers | QSA adapter support with C9600-SUP-1 | CVR-QSFP-SFP10G with 10G and 1G transceivers |
| Bandwidth with C9600X-SUP-2 | 6.4 Tbps full duplex per slot | Bandwidth with C9600-SUP-1 | 2.4 Tbps full duplex per slot |
| Port group restriction with C9600X-SUP-2 | Adjacent SFP56 ports in a port group must run the same speed | QSFP restriction with C9600X-SUP-2 | Port 43 speed determines port 44 speed |
| AC input power | 466 W | DC output power requested | 420 W |
| Heat dissipation | 1590 BTU/hr | Weight | 8.27 lb (3.75 kg) |
| Operating temperature up to 6000 ft | -5 to 45°C (23 to 113°F) | Operating altitude | -60 to 3000 m (-197 to 9843 ft) |
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Customer Reviews
Questions & Answers
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What is C9600-LC-40YL4CD used for?
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What ports are on C9600-LC-40YL4CD?
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Which supervisors support C9600-LC-40YL4CD?
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What speeds can C9600-LC-40YL4CD support?
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How is C9600-LC-40YL4CD different from C9600X-LC-56YL4C?
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What power rating applies to C9600-LC-40YL4CD?
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What optic planning matters for C9600-LC-40YL4CD?
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When does C9600-LC-40YL4CD make sense instead of C9600-LC-48YL?
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