STACK-T1A-3M – 3m Type 1A StackWise Cable – C9350 Data Stack – 1.6T

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STACK-T1A-3M Description

The STACK-T1A-3M is a Cisco Type 1A StackWise-1.6T stacking cable for C9350 Series Smart Switches that are mounted farther apart than a 1 m run allows. The cable is 3 m long, has a minimum bend radius of 82 mm and a minimum coiled diameter of 182 mm, and links stacks of up to eight C9350 switches at the same license level. C9350 switches are not compatible with Catalyst 9300 stacking cables, so only Type 1A cables can be used.

Quick Specs

Parameter

Specification

Product ID

STACK-T1A-3M

Applicable platform

Cisco C9350 Series Smart Switches

StackWise technology

Cisco StackWise-1.6T

Cable length

3 meters / 9.84 feet

Supported stack scale

Up to 8 Cisco C9350 switches

Supported stack members

Other Cisco C9350 models at StackWise-1.6T speeds with the same license level

Minimum bend radius

3.2 in. / 82 mm

Minimum coiled diameter

7.17 in. / 182 mm

Adjacent type 1A cable lengths

0.5 m and 1 m

Spare product ID

STACK-T1A-3M=

Application Scenarios

Separated C9350 Racks

When C9350 Smart Switches in a stack are split between adjacent racks or distant rack positions, the 3 m cable carries StackWise-1.6T links that shorter cables cannot reach.

Side-Mounted Stack Members

In a closet where C9350 members are mounted side by side with cable managers between them, the cable gives enough length for the route while the 182 mm coil diameter sets the slack storage needed.

Product Comparison

Parameter

STACK-T1A-3M

STACK-T1A-1M

STACK-T1A-50CM

STACK-T1-3M

Supported switches

C9350 Series Smart Switches

C9350 Series Smart Switches

C9350 Series Smart Switches

Catalyst 9300 and 9300X modular uplink models

StackWise technology

StackWise-1.6T

StackWise-1.6T

StackWise-1.6T

StackWise-480 and StackWise-1T

Cable length

3 m / 9.84 ft

1 m / 3.28 ft

0.5 m / 1.64 ft

3 m / 9.84 ft

Minimum bend radius

3.2 in. / 82 mm

1.6 in. / 41 mm

1.6 in. / 41 mm

3.2 in. / 82 mm

Minimum coiled diameter

7.17 in. / 182 mm

5.2 in. / 132 mm

Not applicable (0.5 m cable)

7.17 in. / 182 mm

STACK-T1A-3M is the longest Type 1A cable for Cisco C9350 Series Smart Switches on StackWise-1.6T, with a 3 m reach, a 3.2 in. / 82 mm minimum bend radius and a 7.17 in. / 182 mm minimum coiled diameter. STACK-T1A-1M covers a 1 m route with a 1.6 in. / 41 mm bend radius, and STACK-T1A-50CM covers 0.5 m between neighboring members with no coiling requirement, so both take less cable-management room. STACK-T1-3M has the same 3 m length and bend limits but belongs to the Catalyst 9300 and 9300X StackWise-480/1T family, so C9350 stacks need the Type 1A cable instead.

Specifications

Parameter Specification Parameter Specification
Product ID STACK-T1A-3M Product type Type 1A StackWise data stacking cable
Compatible platform Cisco C9350 Series Smart Switches StackWise technology Cisco StackWise-1.6T
Cable length 3 meters / 9.84 feet Supported stack scale Up to 8 Cisco C9350 switches
Supported stack members Other Cisco C9350 models at StackWise-1.6T speeds with the same license level Adjacent type 1A cable lengths 0.5 m and 1 m
Minimum bend radius 3.2 in. / 82 mm Minimum coiled diameter 7.17 in. / 182 mm
Ordering guide description 3m Type 1A Stacking cable Spare product ID STACK-T1A-3M=
Cable material note Cisco stack cables are halogen-free Compatibility boundary Not compatible with Catalyst 9300 Series or previous-generation stacking cables

Get More Information

Need pricing, stock, or shipping details for the STACK-T1A-3M ? Layer23-Switch can help you check current availability, lead time, and delivery options for this. Send us the part number, quantity, and destination country via live chat or email [email protected] for a fast quotation.

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    Wei Dixon
    Posted on 14/03/2026
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    Our field engineer deployed this remotely with minimal documentation. It was that straightforward.

    Melissa Crawford
    Posted on 20/02/2026
    Verified Buyer
    4.0

    We always verify before deployment. This one checked out immediately. Wish the lead time was a bit shorter, but product quality made up for it.

    Cheryl Ortiz
    Posted on 04/12/2025
    Verified Buyer
    4.0

    Their team made sure we ordered exactly the right product the first time.

Questions & Answers

  • How is STACK-T1A-3M described in the Cisco C9350 ordering guide?

    The C9350 ordering guide describes STACK-T1A-3M as a 3m Type 1A Stacking cable and prints STACK-T1A-3M= on both of its 3 meter rows, where one row should carry the non-spare PID, so confirm the new-cable line in CCW. The StackPower cables CAB-SPWR-35CM and CAB-SPWR-100CM are separate lines. Cisco stack cables are halogen-free.
  • How many switches can STACK-T1A-3M join in one stack, and what must they share?

    STACK-T1A-3M links up to eight Cisco C9350 switches in one stack. Every member must run StackWise-1.6T and use the same license level, so a stack with mixed license levels cannot be formed with this cable. Other C9350 models can join as members at StackWise-1.6T speeds.
  • How much slack space does STACK-T1A-3M need in a cable manager?

    STACK-T1A-3M needs a minimum bend radius of 3.2 in. / 82 mm. If the excess length is coiled, the minimum coiled diameter is 7.17 in. / 182 mm. Size the cable manager and the slack loop to these two limits before routing the 3 m run between racks.
  • Can STACK-T1A-3M be used in a Catalyst 9300 stack?

    No. C9350 switches work only with Type 1A cables on StackWise-1.6T, and STACK-T1A-3M does not work with Catalyst 9300 stacking cables or in a Catalyst 9300 stack. Use it only to join Cisco C9350 Series Smart Switches that are mounted too far apart for a 1 m run.

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  • STACK-T1A-3M Datasheet