CAB-SPWR-30CM - Cisco Stack Power Cable 30cm

Cisco CAB-SPWR-30CM — StackPower Cable 30 cm

What it is

CAB-SPWR-30CM is a Cisco StackPower cable used to interconnect the StackPower ports of compatible Cisco Catalyst switches.
It provides a 30 cm copper cable for linking power stacking units to share or aggregate power between switches in a StackPower domain.

Why buyers pick CAB-SPWR-30CM (plain English)

Power sharing within a stack
Enables multiple Catalyst switches to share their power supplies, improving resiliency and reducing wasted capacity.

Simple copper connection
30 cm length is ideal for stacking adjacent switches in the same rack or neighboring rack positions without excess slack.

StackPower-ready design
Specifically built for Cisco StackPower ports — ensures reliable physical and electrical compatibility.

Improves uptime
By pooling power resources, it helps keep the stack operational even if one supply fails.

Space-efficient cabling
Short length keeps cable runs tidy and airflow unobstructed in rack closets.

60-second spec box (CAB-SPWR-30CM)

Cable type
StackPower interconnect

Length
30 cm

Connector type
Cisco StackPower proprietary

Media
Copper

Use case
Connects StackPower ports on compatible Catalyst switches for shared power domains.

Where it fits (and when to choose something else)

Perfect for:

• Catalyst switches with StackPower support

• Rack environments with adjacent switches

• Teams consolidating power redundancies

• High-availability access or distribution stacks

Choose something else if:

• You need longer reach → longer StackPower cables

• You’re not using StackPower → standard power supplies suffice

• You’re linking switches with normal stacking (not power) → use StackWise cables

TL;DR

CAB-SPWR-30CM is Cisco’s 30 cm StackPower cable:
a short, rack-friendly cable for linking StackPower ports to share and pool power across compatible Catalyst switches.