Cisco Catalyst 9300L StackWise-320 1M Type 3 Stacking Cable (STACK-T3A-1M)
Cisco Catalyst 9300L StackWise-320 1M Type 3 Stacking Cable (STACK-T3A-1M)
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Cisco Catalyst 9300L StackWise-320 1M Type 3 Stacking Cable (STACK-T3A-1M) | Refresh

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The Cisco Catalyst 9300L StackWise-320 1M Type 3A Stacking Cable (STACK-T3A-1M) is a genuine Cisco stacking accessory that works with Catalyst 9300L and 9300LM switches. Multiple compatible devices can function as a single logical network system with unified management due to its 1-meter length, which provides robust, fast StackWise-320 connections between switches. The earlier STACK-T3 cable, which has a different connector design, should not be confused with the STACK-T3A-1M, which employs Type 3A thumb-screw connectors. The STACK-T3A cable family is necessary for Cisco Catalyst 9300L and 9300LM deployments utilizing the more recent C9300L-STACK-KIT2.

Quick specs

Product Type
Stacking Cable
Color
Black
Cable designation
Type 3A
Stacking technology
Cisco StackWise-320
Stack bandwidth
Up to 320 Gbps with compatible Catalyst 9300L hardware
Cable length
1 meter

Key Features

  • Cisco StackWise-320 Type 3A stacking cable for Catalyst 9300L and compatible Catalyst 9300LM switches.

  • 1-meter / approximately 3.28-foot length supports standard rack-based switch stacking.

  • Thumb-screw Type 3A connectors provide a secure physical connection to compatible stack adapters.

  • Supports up to 320 Gbps of StackWise-320 stack bandwidth on Catalyst 9300L platforms.

  • Enables high-speed communication between stacked switches for control-plane, management and data traffic.

  • Supports resilient ring-stack configurations with primary and secondary stacking paths.

  • Allows compatible Catalyst 9300L and 9300LM switches to operate as one logical switch when the complete stack configuration is supported.

  • Minimum bend radius of 1.6 inches / 41 mm helps support proper cable routing without excessive stress.

  • Minimum coiled diameter of approximately 5.2 inches / 132 mm helps protect the cable during installation and storage.

  • Designed for in-rack deployment between Cisco Catalyst 9300L stack adapters.

  • Compatible with the C9300L-STACK-KIT2 stacking architecture; verify switch, adapter and cable compatibility before installation.

  • Type 3A cable design is physically different from STACK-T3 and cannot be mixed with STACK-T3 cables in the same stacking kit or connection path.

Benefits

  • Combines compatible Catalyst 9300L or 9300LM switches into a unified StackWise-320 system, simplifying configuration and day-to-day administration.
  • Provides up to 320 Gbps of stacking bandwidth for efficient interswitch traffic and fast stack communication.
  • Improves network resiliency by supporting ring topologies with an alternate stack path if one cable or connection fails.
  • Makes it easier to expand access-layer capacity by adding compatible switches to an existing StackWise-320 stack.
  • Supports clean rack installations with a 1-meter length suited to adjacent or vertically aligned switch placement.
  • Helps maintain a secure, mechanically stable connection through Type 3A thumb-screw connectors.
  • Reduces compatibility risk when used with the correct C9300L-STACK-KIT2 adapter and matching STACK-T3A cable family.
  • Provides a genuine Cisco interconnect designed specifically for Catalyst 9300L StackWise-320 deployments.
Manufacturer Cisco
Manufacturer Part Number STACK-T3A-1M
Product Name Cisco Catalyst 9300L StackWise-320 1M Type 3 Stacking Cable
Product Type Stacking Cable
Color Black
Cable designation Type 3A
Stacking technology Cisco StackWise-320
Stack bandwidth Up to 320 Gbps with compatible Catalyst 9300L hardware
Cable length 1 meter
Cable length, imperial Approximately 3.28 feet / 3.3 feet
Cable function High-speed data interconnect between compatible switch stacking adapters
Connector type Proprietary Cisco Type 3A StackWise connector
Connector configuration StackWise Type 3A connector on both ends
Cable topology support Supports daisy-chain and ring-stack connections when used with compatible switches and stacking kits
Stack resiliency Ring configurations provide an alternate data path if one stacking link fails
Stack management Enables compatible switches to operate as a unified logical switch when configured as a supported stack
Minimum bend radius Approximately 1.6 in. / 41 mm
Minimum coiled diameter Approximately 5.2 in. / 132 mm
Installation environment Standard equipment racks, network closets, and switch-stack installations
Intended use Catalyst 9300L StackWise-320 data stacking
Compatibility limitation Type 3A cable; do not substitute for STACK-T3 cables or connect it to incompatible Type 3 stacking-kit ports
Cable status Data stacking cable; no network transceiver or power function
Compatible switch family Cisco Catalyst 9300L and supported 9300LM models
Primary compatibility Cisco Catalyst 9300L Series switches
Required stacking hardware C9300L-STACK-KIT2 / compatible Stack Kit2

Frequently Asked Questions

Cisco Catalyst 9300L StackWise-320 1M Type 3 Stacking Cable (STACK-T3A-1M) | Refresh

How long is the Cisco STACK-T3A-1M cable?
The cable measures 1 meter, or approximately 3.28 feet. This provides additional installation flexibility compared with Cisco's shorter 50cm T3A stacking cable.
What type of cable is STACK-T3A-1M?
It is a Type 3A data stacking cable designed for compatible Cisco Catalyst 9300L and 9300LM Series StackWise-320 deployments.
Is STACK-T3A-1M compatible with Catalyst 9300L switches?
Yes. Cisco lists STACK-T3A-1M as a stacking accessory for C9300L Series switches when used with the corresponding T3A stacking hardware.
Is STACK-T3A-1M compatible with Catalyst 9300LM switches?
Yes. Cisco specifically lists the 1-meter STACK-T3A-1M for Catalyst 9300LM Series switches.
Which stacking adapter works with the STACK-T3A cable?
Cisco specifies the C9300L-STACK-A stacking adapter for use with STACK-T3A-type cables on compatible C9300L and C9300LM switches.
Does the STACK-T3A-1M include stack adapters?
The individually ordered STACK-T3A-1M is the 1-meter data stack cable. Cisco separately offers the C9300L-STACK-KIT2 configuration, which includes two stack adapters and a stacking cable.
Is this an Ethernet cable?
No. STACK-T3A-1M is a dedicated Cisco data stacking cable. It should not be confused with an Ethernet patch cable used for standard network access or uplink ports.
Is this an uplink cable?
No. Its purpose is to connect supported stack interfaces. Standard network uplinks use the appropriate Ethernet or optical interfaces and compatible cabling or transceivers.
What stacking architecture is this cable intended for?
The T3A cable is associated with the StackWise-320 architecture used on supported Catalyst 9300L and 9300LM fixed-uplink models.
Can a Catalyst 9300LM use a Type 3 cable instead?
Cisco states that C9300LM Series switches use only T3A-type stacking cables. This distinction is important when purchasing replacement or additional stacking cables.
Can a Catalyst 9300L use both T3 and T3A cables?
Cisco states that C9300L Series switches use both T3 and T3A-type stacking cables, with the appropriate corresponding stacking adapter.
When was T3A support introduced?
Cisco documents that support for the STACK-T3A cable and stack adapter was introduced with Cisco IOS XE Cupertino 17.9.x for Catalyst 9300L and 9300LM Series models.
Are shorter T3A stacking cables available?
Yes. Cisco offers STACK-T3A-50CM, a 50cm Type 3A stacking cable, for installations where connected switches are positioned close together.
Is a longer T3A cable available?
Yes. Cisco also offers the STACK-T3A-3M, providing a 3-meter option for installations requiring greater physical separation.
What is the minimum bend radius for STACK-T3A-1M?
Cisco specifies a 1.6-inch (41 mm) minimum bend radius. Installers should avoid tighter bends that exceed Cisco's documented cable-routing specification.
What is the minimum coiled diameter?
Cisco specifies a 5.20-inch (132 mm) minimum coiled diameter for the 1-meter T3A cable. This specification is useful when managing excess cable behind switches.
Can STACK-T3A-1M be used to replace a 50cm T3A cable?
It can serve as the longer cable option in a compatible T3A StackWise configuration. Cisco lists 50cm, 1m, and 3m T3A variants for different physical installation requirements.
Why would an installer choose the 1-meter version?
A 1-meter cable is useful when switches are separated by other rack equipment, installed with additional vertical spacing, or require a less restrictive cable-management path than a 50cm cable allows.
Is STACK-T3A-1M the same as STACK-T3-1M?
No. STACK-T3A-1M is Type 3A, while STACK-T3-1M is Type 3. Cisco associates them with different stack adapters, so administrators should confirm their switch model and installed stacking hardware before ordering.
What should be checked before purchasing STACK-T3A-1M?
Confirm the exact Catalyst switch model, installed or planned stack adapter, software compatibility and required cable length. For C9300L/9300LM T3A configurations, Cisco identifies the C9300L-STACK-A adapter and STACK-T3A family of cables as the corresponding components.
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Cisco Catalyst 9300L StackWise-320 1M Type 3 Stacking Cable (STACK-T3A-1M)

Cisco Catalyst 9300L StackWise-320 1M Type 3 Stacking Cable (STACK-T3A-1M) | Refresh

Cisco

$99.99