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CAB-STK-E-3M
Cisco CAB-STK-E-3M FlexStack 3 m Stack Cable for Catalyst 29...
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CAB-STK-E-3M is Cisco FlexStack 3m stacking cable, a 3 m FlexStack stack cable for Catalyst 2960-X switches. The 3 m length separates this cable from CAB-STK-E-1M for rack positions that need more reach. It also serves Catalyst 2960-XR and Catalyst 2960-S stack-capable switches. This Cisco Catalyst 2960-X stack cable connects stack ports on FlexStack-Plus modules and the copper port on FlexStack-Extended hybrid modules. FlexStack-Plus gives a unified data plane, one configuration and single IP management. Catalyst 2960-X LAN Base mixed with Catalyst 2960-S LAN Base runs as a 40 Gbps, 4-member stack. Catalyst 2960-XR IP Lite stacks stay with Catalyst 2960-XR IP Lite members.
CAB-STK-E-3M price for new stock is $157.49, a 61.7% saving from the Cisco list price of $411.00. CAB-STK-E-3M refurb price is $73.50. CAB-STK-E-3M is in stock and available for free next-day delivery. (terms applied)
Request bulk order quote for CAB-STK-E-3M for additional pricing. Browse the full Cisco 2960 Stack Kits & Cables series or explore all Cisco products.
80 Gbps of stack bandwidth applies to FlexStack-Plus on Catalyst 2960-X LAN Base or Catalyst 2960-XR IP Lite stacks with 8 members. 40 Gbps applies to FlexStack-Extended and to Catalyst 2960-X LAN Base mixed with Catalyst 2960-S LAN Base at 4 members. 20 Gbps applies to Catalyst 2960-S FlexStack stacks with 4 members. Full bandwidth uses redundant connections; incomplete stack cabling gives half bandwidth and no redundant connections. CAB-STK-E-3M snaps into the stack connector until the latch seats. The tab faces above the STACK 1 connector and below the STACK 2 connector. FlexStack-Extended needs Cisco IOS 15.2(6)E or later.
CAB-STK-E-3M is offered new sealed and certified refurbished. Certified refurbished units are inspected and bench-tested between two compatible switches; connectors, pins, latches and housing inspected, connected between two compatible switches, and stack link up at the rated bandwidth. Order one cable per stack link, and match 3 m reach before the PO. New warranty is up to 3-year extended; certified refurbished warranty is up to 1 year, and 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 2960-XR / 2960-X / 2960-S |
Technology | FlexStack-Plus, 80 Gbps |
Stack Features | 3 m reach / Single IP management |
Length | 3 m |
Lifecycle Status | Sales ended 31 October 2022 |
Max Members | 8 with FlexStack-Plus or FlexStack-Extended |
The buyer has a damaged 3 m FlexStack link between two stack-capable Catalyst switches. One replacement cable restores that link length; a full ring still needs one cable per member. Match the failed link to the 3 m route and count every open link before the PO.
The buyer is closing a half-ring stack that now has incomplete cabling. A full ring needs one cable per member and gives full bandwidth with redundant connections. Count the stack members, measure the route that needs 3 m, and order the missing link before the PO.
The buyer is keeping Catalyst 2960-S switches while adding Catalyst 2960-X LAN Base members. The mixed stack runs at 40 Gbps with 4 members, and Catalyst 2960-XR stays separate. Count only the mixed-stack members and set the stack speed to 40 before the PO.
Catalyst 2960-XR mixed stack
Catalyst 2960-XR switches only stack with Catalyst 2960-XR switches; a Catalyst 2960-XR and Catalyst 2960-X mixed stack is not allowed.
LAN Lite stacking
Catalyst 2960-X LAN Lite models do not take a FlexStack module. Use a stack-capable LAN Base model with C2960X-STACK.
Fiber distance links
CAB-STK-E-3M is a 3 m copper FlexStack cable. Long-distance FlexStack-Extended fiber links use C2960X-FIBER-STK with SFP+ ports.
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| CAB-STK-E-3M |  CAB-STK-E-0.5M |  C2960X-STACK |  C2960X-HYBRID-STK |  CAB-STK-E-1M | |
|---|---|---|---|---|---|
| Product Type | Stack Cable | Stack Cable | Stack Module | Stack Module | Stack Cable |
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CAB-STK-E-3M is the Cisco FlexStack 3m stacking cable for FlexStack, FlexStack-Plus and FlexStack-Extended hybrid copper stack links. The cable is 3 m long and serves Catalyst 2960-X, Catalyst 2960-XR and Catalyst 2960-S stack-capable switches. The E-3M segment marks the 3 m cable length.
CAB-STK-E-3M fits Catalyst 2960-X and 2960-XR FlexStack-Plus and FlexStack-Extended hybrid stacks, and Catalyst 2960-S FlexStack stacks. Catalyst 2960-X LAN Lite models and WS-C2960X-24PSQ-L do not take a stack module. Catalyst 2960-XR cannot join mixed stacks with Catalyst 2960-X or Catalyst 2960-S.
A Catalyst 2960-X uses CAB-STK-E-0.5M, CAB-STK-E-1M or CAB-STK-E-3M FlexStack cables with C2960X-STACK, C2960X-FIBER-STK or C2960X-HYBRID-STK modules. CAB-STK-E-3M is the 3 m copper option for spaced switches. LAN Lite models and WS-C2960X-24PSQ-L do not use FlexStack.
CAB-STK-E-3M carries FlexStack, FlexStack-Plus and FlexStack-Extended copper stack traffic; the bandwidth comes from the stack technology. FlexStack-Plus gives 80 Gbps and 8 members on Catalyst 2960-X or 2960-XR. FlexStack-Extended gives 40 Gbps and 8 members. Catalyst 2960-S FlexStack gives 20 Gbps and 4 members.
A full ring needs one CAB-STK-E-3M per stack member, so 4 switches need 4 cables and 8 switches need 8 cables. A chain uses one fewer cable. Half-ring cabling gives half bandwidth and no redundant connections, so count every stack link before the PO.
CAB-STK-E-3M stacks 8 Catalyst 2960-X LAN Base switches at 80 Gbps with FlexStack-Plus, or 8 Catalyst 2960-XR IP Lite switches at 80 Gbps. Catalyst 2960-S FlexStack stacks use 4 members at 20 Gbps. A mixed 2960-X and 2960-S stack uses 4 members at 40 Gbps.
CAB-STK-E-3M installs by removing the dust covers and pushing each connector into the stack port until the latch seats. For STACK 1, the tab faces above the connector. For STACK 2, the tab faces below the connector. Power off a switch before adding or removing that switch from an existing stack.
Yes, CAB-STK-E-3M links Catalyst 2960-X LAN Base switches with Catalyst 2960-S LAN Base switches in a mixed stack. The mixed stack runs at 40 Gbps with 4 members. The Catalyst 2960-X stack speed must be set to 40, and Catalyst 2960-XR cannot join that mixed stack.
CAB-STK-E-3M needs Cisco IOS 15.2(6)E or later for FlexStack-Extended. A mixed Catalyst 2960-X and Catalyst 2960-S stack needs Cisco IOS 15.0(2)EX or later, and all members need the same release and rebuild. The release requirement follows the stack technology in use.
CAB-STK-E-3M= is the spare ordering form for the 3 m FlexStack cable, while CAB-STK-E-3M is the base part number on this page. The equals sign changes the ordering form, not the cable length, stack technology, or Catalyst 2960-X and Catalyst 2960-S fit.
CAB-STK-E-3M gives 3 m of FlexStack reach, while CAB-STK-E-1M gives 1 m. Both are copper FlexStack cables for the same FlexStack and FlexStack-Plus stack ports. Choose the 3 m cable for spaced rack positions, and choose the 1 m cable for shorter in-rack links.
Cisco stopped selling CAB-STK-E-3M on 31 October 2022. Cisco service ends on 31 October 2027 for this PID, and Cisco names no replacement product. The cable serves Catalyst 2960-X, Catalyst 2960-XR and Catalyst 2960-S stacks; Catalyst 2960-S service ended on 30 November 2020.
ORM offers CAB-STK-E-3M new sealed and certified refurbished, with new warranty up to 3-year extended and certified refurbished warranty up to 1 year. Cisco Enhanced Limited Lifetime applies until Cisco service ends on 31 October 2027. Returns are 30 days on every condition; terms apply, with RMA and advance replacement.
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