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MA-CBL-40G-3M
Cisco MA-CBL-40G-3M Meraki Stacking 3 m Stack Cable for MS42...
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MA-CBL-40G-3M is the Meraki 40GbE QSFP Cable, 3 Meter, a stack cable using 40 Gigabit Meraki Stacking over a 3 m QSFP+ passive Twinax assembly for MS425 switches. 3 m reach is the edge over the 1 m cable in the same 40 Gigabit family. Use the cable only on the named MS stack families. The Cisco Meraki MS stack cable stacks MS425, MS410, MS350, MS250, MS225 and MS210 switches. MS210 and MS225 may share one stack; other MS models stack only with like models. Physical stacks use dedicated rear stacking ports, while MS425 flexible stacks use front QSFP+ ports set as stack ports. The stack gives one active switch role and member roles for the remaining switches.
MA-CBL-40G-3M price for new stock is $119.70, a 40.2% saving from the Cisco list price of $200.00. MA-CBL-40G-3M refurb price is $140.69. MA-CBL-40G-3M is in stock and available for free next-day delivery. (terms applied)
Request bulk order quote for MA-CBL-40G-3M for additional pricing. Browse the full Cisco Meraki Stacking Cables series or explore all Cisco products.
40 Gbps of stack bandwidth applies to the named Meraki stack families, and 8 switches form the maximum physical or flexible stack. A full ring of n switches needs n stack cables. A 3-switch ring needs 3 cables. MA-CBL-40G-3M connects as 40GQSFP+Cu with a QSFP+ passive Twinax cable assembly. Physical stack cabling starts with all switches powered off and links disconnected. MS425 flexible stacking uses front QSFP+ ports configured as stack ports, and matched port types keep the flexible ring consistent. Each MS switch in this stack group needs its own management IP address. MS210 and MS225 are the only cross-series pair in this 40 Gigabit group.
MA-CBL-40G-3M comes new sealed or certified refurbished. Certified refurbished units have connectors, pins, latches and housing inspected, are connected between two compatible switches, and show stack link up at the rated bandwidth. Confirm 3 m reach and one cable per switch for a full ring before the PO. Cisco stopped selling the Meraki 40GbE QSFP Cable, 3 Meter on 29 October 2026. New carries up to 3-year extended warranty; certified refurbished carries up to 1 year. Returns are 30 days on every condition · terms apply. UK · EU · US · MEA stock/RMA, RMA with advance replacement, PO accepted and Net-30 for government apply.
| Key Specs | Key Spec Values |
|---|---|
Stacks | MS425 / MS410 / MS350 |
Technology | Meraki Stacking, 40 Gbps |
Stack Features | 3 m reach, active/member roles |
Length | 3 m |
Lifecycle Status | Cisco stopped selling 29 October 2026 |
Max Members | 8 switches |
A buyer replacing a damaged 40 Gigabit link already has the correct switch family and needs the same 3 m QSFP+ passive Twinax reach. Match the failed run, keep the ring path intact, and order one cable for each failed stack link before the PO.
A buyer adding a member to an MS210 or MS225 stack must keep the stack within 8 switches and the same firmware build. A 4-switch full ring needs 4 stack cables, so count the final members and confirm the 3 m path before the PO.
A buyer spanning adjacent racks needs the 3 m length when 1 m and 0.5 m runs are too short for a safe port-to-port path. Measure the rear or front stack-port route with bends, then order one cable per ring link before the PO.
MS390 or C9300 stack
MS390 and C9300 take 120 Gigabit (480G) data-stack cables, not the 40 Gigabit QSFP+ cable; use MA-CBL-120G-3M for 3 m.
MS355 or MS450 stack
MS355, MS450 and MS150 take 100 Gigabit QSFP28 stack cables, not the 40 Gigabit QSFP+ cable; use MA-CBL-100G-3M for 3 m.
Mixed MS250 and MS350 stack
MS250 and MS350 cannot share one stack. Only MS210 and MS225 can share a 40 Gigabit stack in this cable family.
Mon–Fri: [09:00-16:00]
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| MA-CBL-40G-3M |  MA-CBL-120G-50CM |  MA-CBL-120G-1M |  MA-CBL-100G-3M |  MA-CBL-120G-3M | |
|---|---|---|---|---|---|
| Product Type | Stack Cable | Stack Cable | Stack Cable | Stack Cable | Stack Cable |
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MA-CBL-40G-3M is the Cisco Meraki 40GbE QSFP Cable, 3 Meter for 40 Gigabit Meraki Stacking on MS425, MS410, MS350, MS250, MS225 and MS210 switches. MA-CBL marks a Meraki accessory cable, 40G marks the stack data rate, and 3M marks the 3 m length.
MA-CBL-40G-3M fits MS425, MS410, MS350, MS250, MS225 and MS210 switching stacks at 40 Gigabit. MS210 and MS225 can share one stack; MS250, MS350, MS410 and MS425 stack only with like models. MS390 and C9300 use MA-CBL-120G-3M for a 3 m data stack.
A Meraki MS425 uses MA-CBL-40G-3M for a 3 m 40 Gigabit stack cable, alongside MA-CBL-40G-1M and MA-CBL-40G-50CM for shorter 40 Gigabit runs. MS425 flexible stacking uses front ports configured as stack ports, and a full 8-switch flexible stack can use a ring.
MA-CBL-40G-3M uses Meraki Stacking at 40 Gbps through a 40GQSFP+Cu QSFP+ passive Twinax cable assembly. The stack provides one active switch role and member roles on MS stacks, and MS425 flexible stacking lets QSFP+ ports operate as stack ports. The cable carries data stacking, not StackPower.
A full ring needs one MA-CBL-40G-3M cable per switch, so a 4-switch ring needs 4 cables and an 8-switch ring needs 8 cables. The 3 m length fits spaced rack positions; use the port-to-port path, not rack height, to set the cable count.
Up to 8 switches can use MA-CBL-40G-3M in one physical or flexible Meraki stack. Physical MS210, MS225, MS250, MS350 and MS410 stacks use dedicated rear stack ports in a ring. MS425 flexible stacks use front ports configured as stack ports and follow the same ring planning.
MA-CBL-40G-3M installation for a physical stack starts with all switches powered off and links disconnected. Connect the ring before powering on the members, and check the stack cable LED state where the switch provides LEDs. MS425 flexible stacking requires port configuration before the stack is created.
Yes, MA-CBL-40G-3M can stack MS210 and MS225 switches together at 40 Gigabit. Other 40 Gigabit MS families are like-model stacks: MS250 with MS250, MS350 with MS350, MS410 with MS410, and MS425 with MS425. A mixed MS250 and MS350 stack is not supported.
MA-CBL-40G-3M gives 3 m reach, while MA-CBL-40G-1M gives 1 m reach. Both are Meraki 40GbE QSFP cables for MS425, MS410, MS350, MS250, MS225 and MS210 stacks. Choose 3 m for separated racks and 1 m for shorter rack paths.
MA-CBL-40G-3M is a 40 Gigabit QSFP+ stack cable for MS210, MS225, MS250, MS350, MS410 and MS425. MA-CBL-100G-3M is a 100 Gigabit QSFP28 stack cable for MS150, MS355 and MS450. The same 3 m length does not make the parts interchangeable.
MA-CBL-40G-3M serves 40 Gigabit Meraki Stacking on MS210, MS225, MS250, MS350, MS410 and MS425. MA-CBL-120G-3M serves 120 Gigabit (480G) stacks on MS390 and C9300. Both are 3 m cables, but their stack technologies and switch families differ.
Cisco stopped selling MA-CBL-40G-3M on 29 October 2026. Cisco service ends on 31 October 2031, and Cisco names no replacement for the legacy switching accessory. The cable serves MS425, MS410, MS350, MS250, MS225 and MS210 stack sparing plans.
MA-CBL-40G-3M carries a Cisco Meraki 1-year accessory warranty, with Cisco service ending 31 October 2031. ORM offers new sealed and certified refurbished conditions, new — up to 3-year extended warranty, certified refurbished — up to 1 year, and 30 days on every condition · terms apply.
United States
