C9610-LC-32CD – 30x100G QSFP28 Ports – 2x400G QSFP-DD Ports – C9610R Line Card

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C9610-LC-32CD Description

The C9610-LC-32CD is a Cisco C9610 Series Smart Switches combo line card for C9610R chassis that need 100G aggregation with 400G uplink options. The card has 30 QSFP28 ports at 100G or 40G and 2 QSFP-DD ports at 400G, 100G or 40G (200G is hardware-ready and depends on optic availability), with 6.4 Tbps per slot and 495 W of AC input power. The card installs directly in line-card slots 1, 2, 3, 4, 7, 8, 9 and 10 and needs Cisco IOS XE 17.18.1 or later.

Quick Specs

Parameter

Specification

Product ID

C9610-LC-32CD

Product type

Combo line card

Cisco ordering description

Cisco C9610 Series Smart Switches combo line card

Native chassis

Cisco C9610R

Supervisor compatibility

C9610-SUP-3 and C9610-SUP-3XL

Supported line-card slots

Slots 1, 2, 3, 4, 7, 8, 9, and 10

QSFP28 ports

30 ports supporting 100G/40G

QSFP-DD ports

2 ports supporting 400G/100G/40G; 200G is hardware-ready and depends on optic availability

Cisco ordering port profile

30 ports 100/40G QSFP28; 2 ports 400/200/100G QSFP-DD

Documented port modes

32 x 100G; 28 x 100G plus 1 x 400G; 24 x 100G plus 2 x 400G

Bandwidth per slot

6.4 Tbps per slot; 3.2 Tbps full-duplex

Minimum software release

Cisco IOS XE 17.18.1

AC-input power

495 W

Application Scenarios

100G Aggregation In A C9610R Core

In a modular C9610R core, the line card connects distribution switches and aggregation blocks over up to 30 QSFP28 ports at 100G or 40G.

400G Links Toward The Spine

At the boundary between a campus core and a data center, one or two QSFP-DD ports can run 400G toward the spine while the remaining ports stay at 100G in the 28 x 100G plus 1 x 400G or 24 x 100G plus 2 x 400G mode.

Product Comparison

Parameter

C9610-LC-32CD

C9610-LC-40YL4CD

C9600X-LC-32CD

SFP56 ports

0 ports

40 ports, 50G/25G/10G/1G

0 ports

QSFP28 ports

30 ports, 100G/40G

0 ports

30 ports, 100G/40G

QSFP-DD ports

2 ports, 400G/100G/40G (200G hardware-ready)

2 ports, 400G/200G/100G/40G

2 ports, 400G/100G/40G

Supported chassis

Cisco C9610R

Cisco C9610R

Cisco C9610R with C9610-LC-ADPT

Supervisor compatibility

C9610-SUP-3 and C9610-SUP-3XL

C9610-SUP-3 and C9610-SUP-3XL

C9610-SUP-3 and C9610-SUP-3XL

AC-input power

495 W

466 W

495 W

C9610-LC-32CD is the QSFP28 card of the native C9610 pair, with thirty 100G/40G QSFP28 ports and two QSFP-DD ports, while C9610-LC-40YL4CD has forty SFP56 ports at 50G, 25G, 10G and 1G plus two QSFP56 and two QSFP-DD uplinks. Designs whose downlinks are 50G, 25G or 10G move to C9610-LC-40YL4CD, which also draws less, 466 W AC input against 495 W. C9600X-LC-32CD has the same port layout and the same 495 W, but a C9610R accepts it only through C9610-LC-ADPT, so it suits reuse of an installed Catalyst 9600X card rather than a new build. All three cards run with C9610-SUP-3 and C9610-SUP-3XL.

Ordering Checklist

  • Catalyst C9610R hosts: Use a C9610R chassis with C9610-SUP-3 or C9610-SUP-3XL, with the card in line-card slot 1, 2, 3, 4, 7, 8, 9 or 10. The card installs directly in those slots with either supervisor and needs no C9610-LC-ADPT adapter.

Specifications

Parameter Specification Parameter Specification
Product ID C9610-LC-32CD Product type Combo line card
Cisco ordering description Cisco C9610 Series Smart Switches combo line card Ordering form C9610-LC-32CD (=)
Native chassis Cisco C9610R Supervisor compatibility C9610-SUP-3 and C9610-SUP-3XL
Supported line-card slots Slots 1, 2, 3, 4, 7, 8, 9, and 10 Bandwidth per slot 6.4 Tbps per slot; 3.2 Tbps full-duplex
QSFP28 ports 30 ports supporting 100G/40G QSFP-DD ports 2 ports supporting 400G/100G/40G; 200G is hardware-ready and depends on optic availability
Cisco ordering port profile 30 ports 100/40G QSFP28; 2 ports 400/200/100G QSFP-DD Documented 100G mode 100G connectivity on all 32 ports
Documented 400G mode 1 100G connectivity on 28 ports and 1 x 400G on the QSFP-DD port in a port group Documented 400G mode 2 100G connectivity on 24 ports and 2 x 400G on the QSFP-DD ports in both port groups
Minimum software release Cisco IOS XE 17.18.1 Optics requirement Cisco-supported pluggable optics required for fiber-optic line-card operation
AC-input power 495 W DC-output power requested 450 W
Current at 90V 5.6 A Current at 120V 4.2 A
Current at 180V 2.8 A Current at 240V 2.1 A
Heat dissipation 1,689 BTU/hr Weight 6.1 kg (13.45 lb)

Quality Certifications

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    Jack Li
    Posted on 21/02/2026
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    5.0

    Everything from the box to the product label said authentic. No doubts.

    Alexis Clark
    Posted on 21/02/2026
    Verified Buyer
    4.0

    Needed documentation for our audit. Layer23 provided it without hesitation. Wish the lead time was a bit shorter, but product quality made up for it.

    Dylan Collins
    Posted on 23/12/2025
    Verified Buyer
    4.0

    Layer23 shipped ahead of the quoted lead time. Pleasant surprise. Shipping took a couple extra days, but product itself is perfect.

Questions & Answers

  • Which chassis, supervisors and slots does C9610-LC-32CD use?

    C9610-LC-32CD installs directly in C9610R line card slots 1, 2, 3, 4, 7, 8, 9 and 10 with either C9610-SUP-3 or C9610-SUP-3XL. The card needs no C9610-LC-ADPT adapter in those slots, and the C9610R is its native chassis.
  • Which Cisco IOS XE release does C9610-LC-32CD need?

    C9610-LC-32CD needs Cisco IOS XE 17.18.1 or later in a C9610R chassis with C9610-SUP-3 or C9610-SUP-3XL. Fiber-optic operation also requires Cisco-supported pluggable optics in the 30 QSFP28 ports and 2 QSFP-DD ports of the line card.
  • How much heat and weight does C9610-LC-32CD add to a C9610R chassis?

    C9610-LC-32CD gives off 1689 BTU/h and draws 450 W DC output alongside its 495 W AC input, per the C9610 hardware documentation. It weighs 8.71 lb (3.95 kg) without an adapter. Use these figures for chassis cooling, power-budget planning and rack handling when you stock several cards.
  • Which PIDs do I order for a spare C9610-LC-32CD and for an empty line-card slot?

    Order the spare as C9610-LC-32CD(=). An empty line-card slot takes C9610-LC-BLANK(=), which is listed in the C9610 data sheet ordering table. The adapter C9610-LC-ADPT is not needed for this native card, so it does not belong on the order for this part.
  • Which line-card slots does C9610-LC-32CD use in a C9610R chassis?

    C9610-LC-32CD installs in line-card slots 1, 2, 3, 4, 7, 8, 9 and 10 of the C9610R chassis. Slots 5 and 6 are reserved for the supervisors, and the card needs no adapter. It works with C9610-SUP-3 and C9610-SUP-3XL from Cisco IOS XE 17.18.1.
  • Which software release does C9610-LC-32CD need?

    C9610-LC-32CD needs Cisco IOS XE 17.18.1 or later. The same minimum release applies with C9610-SUP-3 and with C9610-SUP-3XL, so a C9610R that runs an older image has to be upgraded before the card is installed. The card is native to the chassis and uses no adapter.

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DataSheet Downloads

  • C9610-LC-32CD Datasheet