Selecting Cisco power supplies, stack adapters and cables

Treat the data stack and the power-sharing system as two separate designs.

Information to collect

Treat the data stack and the power-sharing system as two separate designs.

Provide the current host PID, software version, required interfaces and installation constraints before choosing replacements.

Selection checks

• Stack adapters for C9200, C9200L and C9300L are not universally interchangeable. Confirm whether an offer contains an adapter or a complete kit.
• PWR-C1, PWR-C4, PWR-C6 and C9K-PWR families require exact host and power-mode checks. Rated output is not measured switch consumption.
• CAB-SPWR-30CM is a power-sharing cable, not a data stacking cable. Two power supplies do not guarantee full-load redundancy.

Before deployment

• Record adapter, cable and power supply part numbers and counts.
• Validate the intended data-stack topology and member failure behavior.
• Test power mode and remaining PoE capacity when one supply is removed under an approved maintenance procedure.

Preparing a quotation request

Include the exact part numbers, quantities, required condition, included accessories and software entitlements. Identify the target equipment and any unresolved interface or configuration item. A product association is not a validated combination.

Related products

Topic associations; verify the complete configuration before ordering.

• Cisco C6840-X-750W-AC 750W AC Power Supply
• Cisco PWR-C1-715WAC-P 715W AC Power Supply
• Cisco PWR-C1-1100WAC-P 1100W AC Power Supply
• Cisco PWR-C1-1100WAC 1100W AC Power Supply
• Cisco C9300L-STACK-KIT Data Stacking Kit
• Cisco PWR-C4-950WAC-R 950W AC Power Supply
• Cisco CAB-SPWR-30CM 30cm StackPower Cable
• Cisco C9200-STACK-KIT Data Stacking Kit
• Cisco C9200L-STACK-KIT Data Stacking Kit
• Cisco PWR-C6-600WAC 600W AC Power Supply
• Cisco PWR-C6-125WAC 125W AC Power Supply
• Cisco PWR-C6-1KWAC 1000W AC Power Supply
• Cisco STACK-T4-1M 1m Data Stacking Cable
• Cisco C9K-PWR-650WAC-R 650W AC Power Supply

Sources

• Cisco Campus LAN and Wireless LAN — official reference
• Catalyst 9300 ： — official reference
• Cisco Introduces New Catalyst 9300X Switches Designed for the Need for Speed — official reference
• Catalyst 6840-X — official reference
• Cisco Catalyst 9300 — official reference
• Cisco Catalyst 9500 — official reference
• Cisco Catalyst 9200 — official reference