Cisco CAB-STACK-1M
Cisco StackWise 1M Stacking Cable, Original Cisco
Product Highlights
Managing multiple standalone switches across wiring closets and server rooms creates operational complexity — more IP addresses to track, more CLI sessions to maintain, and more points of failure to monitor. The Cisco CAB-STACK-1M eliminates that burden by enabling Cisco StackWise technology across your Catalyst 3750 Series switches.
This genuine Cisco 1-meter stacking cable connects Catalyst 3750 switches through their dedicated StackWise ports, uniting up to nine individual switches into a single logical unit with a 32 Gbps bidirectional stack interconnect. The entire stack is managed as one device with a single IP address, dramatically simplifying VLAN creation, fault detection, firmware management, and day-to-day operations.
The CAB-STACK-1M uses copper conductors with Cisco's proprietary stacking connectors on each end, delivering reliable physical-layer connectivity purpose-built for Gigabit Ethernet stacking environments. At 1 meter (3.28 ft), this cable length is well suited for switches mounted in the same rack or in adjacent positions. For deployments requiring longer or shorter runs, Cisco also offers 0.5-meter and 3-meter StackWise cable options.
Note: The Cisco Catalyst WS-C3750 platform has reached End-of-Life (EOL). This cable is an excellent choice for maintaining and expanding existing 3750 stacks still in production.
Features & Benefits
32 Gbps StackWise Interconnect
The CAB-STACK-1M enables Cisco's StackWise technology, which creates a 32 Gbps bidirectional stack ring across connected Catalyst 3750 switches. This dedicated stacking bandwidth operates independently of user-facing ports, so stacking never consumes your network capacity. Full-ring cabling (connecting both stack ports on each switch) delivers full 32 Gbps; a single-cable connection operates at half bandwidth.
Unified Stack Management
StackWise technology unites up to nine Catalyst 3750 switches into a single logical switching unit managed through one IP address. This dramatically reduces operational overhead — a single Telnet/SSH session, a single CLI, and automatic version checking and configuration propagation across all stack members.
High Availability & Resilience
Every switch in a StackWise stack can serve as both a master controller and a forwarding processor, creating a 1:N availability scheme. If a single unit fails, all remaining switches continue forwarding traffic and maintaining operation. The stack is designed to accept new members or remove old ones without service interruption.
Durable Copper Construction
Built with copper conductors and Cisco's proprietary stacking connectors on both ends, the CAB-STACK-1M ensures secure, stable physical connections. The 1-meter (3.28 ft) length provides flexibility for same-rack deployments while keeping cable management clean and organized.
Deployment Scenarios
Enterprise Wiring Closet Stacking
Stack multiple Catalyst 3750 switches in a single wiring closet rack to create one unified switching system. The 1-meter cable length is ideal for connecting switches mounted vertically in a standard 19-inch rack, simplifying management and reducing the number of IP addresses to monitor.
Branch Office Network Consolidation
In branch offices running Catalyst 3750 switches, the CAB-STACK-1M enables you to stack switches into a single managed unit. This reduces administrative overhead for remote IT teams and provides 1:N master redundancy for improved uptime at distributed sites.
Maintaining Legacy 3750 Deployments
For organizations still operating Catalyst 3750 stacks beyond the platform's EOL date, the CAB-STACK-1M is essential for replacing worn cables or expanding existing stacks. Keeping spare stacking cables on hand ensures you can restore full stack bandwidth quickly if a cable fails.
General
Physical
Performance
Compatibility Notes
Compatible Platforms
- Cisco Catalyst 3750 Series (WS-C3750) — all models
- Cisco Catalyst 3750G Series — all models
- Cisco Catalyst 3750 v2 Series — all models
- Cisco Catalyst 3750-E Series — backward-compatible via StackWise / StackWise Plus
- Cisco Catalyst 3750-X Series — all models (e.g., 3750X-24T, 3750X-48P, 3750X-12S, etc.)
Stacks can include any combination of Cisco Catalyst 3750, 3750-E, and 3750-X Series switches. The CAB-STACK-1M uses Cisco's proprietary StackWise connector and is not interchangeable with STACK-T1 or STACK-T2 cables used by the Catalyst 3850 and 9300 Series.
Note: The WS-C3750 platform has reached End-of-Life (EOL). Verify current Cisco support and service contract availability for your specific model.
Downloads & Resources
Frequently Asked Questions
| Part Number | Product | Key Difference |
|---|---|---|
| CAB-STACK-50CM | Cisco StackWise 0.5M Stacking Cable | Shorter 0.5-meter length — ideal for switches stacked directly on top of each other in the same rack unit range. |
| CAB-STACK-3M | Cisco StackWise 3M Stacking Cable | Longer 3-meter length — suited for connecting switches across adjacent racks or wider rack spacing. |
| STACK-T1-1M | Cisco StackWise-480 1M Cable (Catalyst 3850) | Designed for Catalyst 3850 Series with StackWise-480 (480 Gbps). Not compatible with Catalyst 3750 Series. |
| STACK-T2-1M | Cisco StackWise-160 1M Cable (Catalyst 9300) | Designed for Catalyst 9300 Series with StackWise-160. Not compatible with Catalyst 3750 Series. |