STACK-T3-1M – 1M Type 3 StackWise Cable – C9300L StackWise-320

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STACK-T3-1M Description

The STACK-T3-1M is a Cisco Type 3 StackWise-320 data stacking cable for rear-panel stack links between Catalyst 9300L Series switches. The cable is 1 m (3.28 ft) long with a 41 mm (1.6 in) minimum bend radius and a 132 mm (5.20 in) minimum coiled diameter, and it connects to the C9300L-STACK-KIT adapter. Catalyst 9300LM switches use only Type 3A cables, so the cable does not serve a stack that includes them.

Quick Specs

Parameter

Specification

Product ID

STACK-T3-1M

Product type

Type 3 StackWise data stacking cable

Compatible platform

Cisco Catalyst 9300L Series switches

Adapter family

C9300L-STACK-KIT adapter with STACK-T3 type cables

StackWise technology

Cisco StackWise-320

Cable length

1 meter / 3.28 feet

Minimum bend radius

1.6 in. / 41 mm

Minimum coiled diameter

5.20 in. / 132 mm

Cable material note

Cisco stack cables are halogen-free

Ordering guide description

1M Type 3 Stacking Cable for C9300L SKUs

Type 3A boundary

Use C9300L-STACK-A with STACK-T3A cables for C9300L and C9300LM plans

C9300LM boundary

C9300LM Series switches use only T3A type stacking cables

Application Scenarios

Rear Stack Links In A Closet Rack

In a wiring closet rack, the cable joins Catalyst 9300L members whose rear stack ports sit about a meter apart, carrying StackWise-320 traffic through the C9300L-STACK-KIT adapter.

Cable Managers With Extra Slack

A stack with a vertical cable manager between members can route the 1 m cable around it, and the 132 mm minimum coiled diameter sets how tightly any excess length can be looped.

Product Comparison

Parameter

STACK-T3-1M

STACK-T3-50CM

STACK-T3-3M

STACK-T3A-1M

Compatible platform

Cisco Catalyst 9300L Series switches

Cisco Catalyst 9300L Series switches

Cisco Catalyst 9300L Series switches

Cisco Catalyst 9300L and Catalyst 9300LM Series switches

Stacking adapter

C9300L-STACK-KIT

C9300L-STACK-KIT

C9300L-STACK-KIT

C9300L-STACK-A

StackWise technology

StackWise-320

StackWise-320

StackWise-320

StackWise-320

Cable length

1 m / 3.28 ft

0.5 m / 1.64 ft

3 m / 9.84 ft

1 m / 3.28 ft

Minimum bend radius

1.6 in. / 41 mm

1.6 in. / 41 mm

3.2 in. / 82 mm

1.6 in. / 41 mm

Minimum coiled diameter

5.20 in. / 132 mm

Not applicable

7.17 in. / 182 mm

5.20 in. / 132 mm

STACK-T3-1M is the 1 m Type 3 cable for Catalyst 9300L switches using the C9300L-STACK-KIT adapter on StackWise-320; STACK-T3-50CM spans 0.5 m with no coiling requirement, while STACK-T3-1M gives more slack at a 5.20 in. / 132 mm minimum coiled diameter. Longer runs between C9300L members need STACK-T3-3M, which carries a 3.2 in. / 82 mm minimum bend radius and a 7.17 in. / 182 mm coiled diameter. Stacks that include Catalyst 9300LM switches need the C9300L-STACK-A adapter path, so the 1 m cable becomes STACK-T3A-1M.

Ordering Checklist

  • Catalyst 9300L hosts: Order for Catalyst 9300L fixed-uplink switches, such as C9300L-24T-4X, stacked with the C9300L-STACK-KIT. STACK-T3 cables belong to the C9300L-STACK-KIT, which serves Catalyst 9300L switches.
  • Catalyst 9300LM hosts: Do not order for Catalyst 9300LM switches, which require the C9300L-STACK-KIT2 with STACK-T3A cables. A Type 3 cable ordered for a Catalyst 9300LM stack does not match its stack kit.

Specifications

Parameter Specification Parameter Specification
Product ID STACK-T3-1M Product type Type 3 StackWise data stacking cable
Compatible platform Cisco Catalyst 9300L Series switches Adapter family C9300L-STACK with STACK-T3 type cables
StackWise technology Cisco StackWise-320 Cable length 1 meter / 3.28 feet
Minimum bend radius 1.6 in. / 41 mm Minimum coiled diameter 5.20 in. / 132 mm
Cable material note Cisco stack cables are halogen-free Ordering guide description 1M Type 3 Stacking Cable for C9300L SKUs
Spare product ID STACK-T3-1M= Type 3A boundary Use C9300L-STACK-A with STACK-T3A cables for C9300L and C9300LM plans
C9300LM boundary C9300LM Series switches use only T3A type stacking cables

Quality Certifications

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    Shipping cost was reasonable. a pleasure to deal with.

    Craig
    Posted on 20/07/2026
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    5.0

    the sales team was helpful

    Kevin K.
    Posted on 11/06/2026
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    5.0

    They had it in stock when others didn’t.

    Jeffrey D.
    Posted on 11/06/2026
    Verified Buyer
    4.0

    Would order again

    Margaret G.
    Posted on 06/06/2026
    Verified Buyer
    5.0

    Found it here after a lot of searching. nice to see this still available, works great

Questions & Answers

  • How long is STACK-T3-1M and where does it fit?

    STACK-T3-1M is 1 m (3.28 ft) long. The length joins Catalyst 9300L members whose rear stack ports sit about a meter apart, carrying StackWise-320 through the C9300L-STACK-KIT adapter, and it can be routed around a vertical cable manager between members.
  • Is STACK-T3-1M included in the C9300L-STACK-KIT?

    No. Per the Catalyst 9300 data sheet ordering table, C9300L-STACK-KIT contains two adapters and one cable, and that cable is STACK-T3-50CM. STACK-T3-1M is a separate orderable length, with the spare PID STACK-T3-1M=. Order it when members are about 1 m apart.
  • Can STACK-T3-1M be used with C9300L-STACK-KIT2 in a Catalyst 9300LM stack?

    No. Per the Catalyst 9300 data sheet, C9300L-STACK-KIT2 ships with STACK-T3A-50CM as its default cable, and Catalyst 9300LM switches use only Type 3A stacking cables. STACK-T3-1M is a Type 3 cable and belongs to the C9300L-STACK-KIT path.
  • How tightly can STACK-T3-1M be coiled?

    STACK-T3-1M has a minimum coiled diameter of 132 mm (5.20 in.) and a minimum bend radius of 41 mm (1.6 in.), per the Catalyst 9300 hardware installation guide. Loop any excess of the 1 m (3.28 ft) cable no tighter than that.
  • Which adapter does STACK-T3-1M connect to?

    STACK-T3-1M connects to the C9300L-STACK-KIT adapter on the rear-panel stack ports of Catalyst 9300L switches. It carries StackWise-320. Catalyst 9300LM switches in the stack would need C9300L-STACK-A with STACK-T3A cables instead.

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DataSheet Downloads

  • STACK-T3-1M Datasheet