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STACK-CAB-3M
Cisco STACK-CAB-3M StackWise 3 m Stack Cable for Catalyst 29...
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STACK-CAB-3M is a Stack Cable, Cisco 3M Stacking Cable, for 3 m StackWise links on Catalyst 2975 switches at 32 Gbps. The 3 m reach separates it from the 1 m cable. Catalyst 3750 StackWise ports take CAB-STACK-3M instead for the same reach. The Cisco Catalyst 2975 stack cable links the two high-speed stack ports on Catalyst 2975 switches. StackWise joins up to nine switches into one stack with a unified control and management plane. A StackWise ring gives device-level redundancy through multiple stacked switches and a master selected from the stack. The Cisco 3M Stacking Cable is the longest Catalyst 2975 copper stack cable; STACK-CAB-1M is for shorter runs.
STACK-CAB-3M price is is available on request. Get immediate quote.
Request bulk order quote for STACK-CAB-3M for additional pricing. Browse the full Cisco 3750 Stack Cables series or explore all Cisco products.
32 Gbps of StackWise bandwidth forms across the stack, not across a single cable. A full ring of four switches needs four stack cables, and a four-switch chain needs three. Ring cabling keeps the stack on a redundant path; an incomplete connection leaves half bandwidth and no redundant connection. STACK-CAB-3M connects rear StackWise ports with the connector window aligned and the screws tightened. Removal needs the screws fully undone before the connector is pulled from the port. The 50 cm cable serves short vertical spacing, and the 1 m cable serves shorter side-by-side spacing. The equal-length non-halogen version is STACK-CAB-3M-NH for material-restricted sites.
STACK-CAB-3M is offered new sealed and certified refurbished. Certified refurbished units have connectors, pins, latches and housing inspected, with stack link up at the rated bandwidth. Order one cable per switch for a full ring, or measure the 3 m path before replacing a failed cross-rack link. Cisco service ended on 30 April 2022, so ORM's warranty is the cover that applies. Warranty is new — up to 3-year extended and certified refurbished — up to 1 year; returns are 30 days on every condition · terms apply. UK · EU · US · MEA regional stock and RMA with advance replacement carry PO accepted and Net-30 for government.
| Key Specs | Key Spec Values |
|---|---|
Stacks | Catalyst 2975 |
Technology | StackWise, 32 Gbps |
Stack Features | 3 m reach / device-level redundancy |
Length | 3 m |
Lifecycle Status | Cisco service ended 30 April 2022 |
Max Members | 9 |
The buyer maintains Catalyst 2975 stacks after Cisco service ended on 30 April 2022. A like-for-like spare avoids changing the StackWise cable type during a break-fix event. Count one 3 m cable for each long ring link before the PO.
A failed 3 m StackWise link in a Catalyst 2975 stack needs the same cable family and length. STACK-CAB-3M replaces the long copper link without moving to the Catalyst 3750 CAB-STACK cable family. Measure the rear-port path before the PO.
A rack with four Catalyst 2975 switches needs four stack cables for a full ring. Three cables create a chain and leave no redundant connection. Count one cable per switch and measure each rear-port path before the PO.
Catalyst 3750 StackWise ports
STACK-CAB-3M does not fit Catalyst 3750 StackWise ports; Catalyst 3750 uses CAB-STACK-3M for the same 3 m reach. Match the rear-port cable family before ordering.
Non-halogen cable material
STACK-CAB-3M is the standard 3 m cable; material-restricted Catalyst 2975 sites take STACK-CAB-3M-NH for the non-halogen 3 m version.
Short adjacent-switch span
A 3 m lead is not the short adjacent-switch option; Catalyst 2975 has STACK-CAB-50CM and STACK-CAB-1M for shorter stack links.
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| STACK-CAB-3M |  STACK-CAB-1M |  CAB-STACK-1M-NH |  CAB-STACK-1M |  CAB-STACK-3M | |
|---|---|---|---|---|---|
| Product Type | Stack Cable | Stack Cable | Stack Cable | Stack Cable | Stack Cable |
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STACK-CAB-3M is the Cisco 3M Stacking Cable for 3 m Catalyst 2975 StackWise links. The PID uses STACK-CAB for the Catalyst 2975 cable family and 3M for the length. The cable connects two high-speed stacking ports on the switches in the rear.
Yes, STACK-CAB-3M fits Catalyst 2975 StackWise ports. Catalyst 3750 StackWise ports use CAB-STACK-3M, and equal 3 m length does not make the two cable families interchangeable. The Catalyst 2975 family takes the STACK-CAB cable family, so match the PID before ordering.
A Catalyst 2975 uses STACK-CAB-50CM, STACK-CAB-1M, or STACK-CAB-3M for standard StackWise copper links. Non-halogen versions are STACK-CAB-50CM-NH, STACK-CAB-1M-NH, and STACK-CAB-3M-NH. Select the 3 m cable when rear-port spacing exceeds the 1 m reach. Each cable connects the same two high-speed stack ports.
STACK-CAB-3M serves StackWise stacks rated at 32 Gbps of stack bandwidth. The figure belongs to the StackWise technology, not to one cable. StackWise also gives the stack a unified control and management plane, device-level redundancy, and one master selected from the stack.
A full ring needs one STACK-CAB-3M cable per switch, so a four-switch Catalyst 2975 ring needs four cables. A chain needs one fewer cable than the switch count. Use the 3 m length only on links where shorter Catalyst 2975 cables cannot reach.
STACK-CAB-3M serves Catalyst 2975 StackWise stacks of up to nine switches. A full ring keeps redundant cable paths across the stack. An incomplete connection leaves half bandwidth and no redundant connection, so count the ring before ordering long 3 m links.
STACK-CAB-3M installs between the rear StackWise ports. Remove the dust covers, insert the connector into the port, align the connector window, and tighten both screws. Before removal, fully undo the screws and then pull the connector from the StackWise port.
STACK-CAB-3M= is the spare form of STACK-CAB-3M, and both refer to the Cisco 3M Stacking Cable. Order the form that matches the purchasing system, and keep the base PID tied to Catalyst 2975. Certified refurbished describes ORM's inspection and bench test condition.
STACK-CAB-3M gives 3 m reach, while STACK-CAB-1M gives 1 m reach for Catalyst 2975 StackWise links. Use STACK-CAB-3M for spaced or cross-rack rear ports. Use STACK-CAB-1M when the switches sit closer and slack control matters. Both use the same Catalyst 2975 cable family.
STACK-CAB-3M is the standard 3 m Catalyst 2975 stacking cable, while STACK-CAB-3M-NH is the non-halogen 3 m version. The fit and reach are the same for Catalyst 2975 StackWise links. Use the non-halogen PID when the site requires that cable material.
Cisco stopped selling STACK-CAB-3M on 30 April 2017. Cisco service ended on 30 April 2022, and no replacement PID was named for the Catalyst 2960 and 3750 Series Switches Accessories group. STACK-CAB-3M serves Catalyst 2975 StackWise links at 3 m.
ORM offers STACK-CAB-3M new sealed and certified refurbished. Cisco service ended on 30 April 2022, so ORM's warranty is the cover that applies. Warranty is new — up to 3-year extended and certified refurbished — up to 1 year, with 30 days on every condition · terms apply.
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