CAB-SPWR-150CM Cisco 150CM StackPower Cable

Cisco CAB-SPWR-150CM - StackPower Cable (1.5m)

The CAB-SPWR-150CM is part of Cisco’s StackPower system, which lets you connect compatible Catalyst switches so their power supplies operate as a single shared resource. This enables power redundancy and load balancing across the stack, reducing the need for every switch to have an oversized PSU.

🔧 Key Specifications

• Cable Type: Cisco StackPower interconnect cable
• Length: 150 cm (1.5 meters / ~5 feet)
• Compatibility:
  • Cisco Catalyst 3750-X Series
  • Cisco Catalyst 3850 Series
  • Cisco Catalyst 9300 Series (with StackPower support)
• Function:
  • Pools power supplies across the stack
  • Provides redundancy (if one PSU fails, others in the pool cover the load)
  • Enables efficient power sharing (unused capacity in one switch can power another)
• Installation:
  • Hot-pluggable, connects to StackPower ports on the rear of the switch
  • Can be used in ring or star StackPower topologies

🧩 Ideal Use Cases

• Redundancy: Ensures that if one switch’s PSU fails, the stack continues running.
• Efficiency: Allows smaller PSUs per switch while still meeting total stack demand.
• Scalability: Simplifies power planning in multi-switch deployments.
• Cost Savings: Reduces the need for every switch to have dual PSUs.