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MA-CBL-120G-3M
Cisco MA-CBL-120G-3M Meraki 120G 3 m Stack Cable for MS390
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MA-CBL-120G-3M is a Stack Cable, the Meraki 120G Stacking Cable, with 3 m reach for Meraki MS390 switches at 480 Gbps of stacking bandwidth. The 3 m length is the edge over the 1 m cable for spaced rack positions. This Cisco Meraki MS390 stack cable serves all MS390 models and uses the dual dedicated 120G hardware stacking ports. A physical MS390 stack carries 8 switches at the maximum and gives faster convergence over dedicated stack links. The 0.5 m and 1 m cables serve the same MS390 stack family where adjacent rack positions do not need the 3 m cable.
MA-CBL-120G-3M price for new stock is is available on request. Get immediate quote. MA-CBL-120G-3M refurb price is $73.49.
Request bulk order quote for MA-CBL-120G-3M for additional pricing. Browse the full Cisco Meraki MS390 Stacking Cables series or explore all Cisco products.
120 Gigabit cable data rate is the accessory value for this Meraki stacking cable, and the MS390 switching fabric rates the stack at 480 Gbps. Two hardware stack ports sit on each MS390 switch, so a full ring uses one cable per member and a chain uses one fewer cable than the member count. Connect MA-CBL-120G-3M with the switches powered off and links disconnected before the stack is formed in Dashboard. Cable LEDs turn orange when a cable is detected and green when stack status is good. Stack membership creates one logical switch, and switch-specific link aggregates, mirrored ports, SVIs, IGMP snooping and STP priority need reconfiguration on the stack.
MA-CBL-120G-3M is offered new sealed and certified refurbished; new carries up to 3-year extended warranty and certified refurbished carries up to 1 year. Returns are 30 days on every condition; terms apply. Certified refurbished cables have connectors, pins, latches and housing inspected, are connected between two compatible switches, and stack link up at the rated bandwidth. Match the 3 m length and count one cable per switch in a full ring. Regional stock and RMA cover UK, EU, US and MEA with RMA with advance replacement, PO accepted and Net-30 for government.
| Key Specs | Key Spec Values |
|---|---|
Stacks | Meraki MS390 |
Technology | Meraki Stacking, 480 Gbps |
Stack Features | 3 m reach, faster convergence |
Length | 3 m |
Lifecycle Status | Cisco stopped selling 29 October 2026 |
Max Members | 8 switches |
The buyer has an MS390 stack with a damaged 3 m data stack cable. MA-CBL-120G-3M matches the Meraki 120G cable family and the 480 Gbps MS390 stack rating. Count the failed links and match the 3 m path before the PO.
The buyer is adding MS390 members to an existing physical stack. Each added switch needs a stack connection into the 120G hardware stack ports, and a full ring needs one cable per member. Count the final member total and order the full-ring cable count before the PO.
The buyer has MS390 switches separated by rack position or a short rack gap. The 3 m cable keeps the same Meraki 120G stack family while adding reach over shorter MS390 stack cables. Measure the rear-port path, with bend clearance, before the PO.
MS355 or MS450 stack
MA-CBL-120G-3M is a 480 Gbps MS390 stack cable. MS355 and MS450 stacks use the 100 Gigabit 3 m MA-CBL-100G-3M instead.
MS210 to MS425 stack
MA-CBL-120G-3M does not fit MS210, MS225, MS250, MS350, MS410 or MS425 stacks. Those families use the 40 Gigabit 3 m MA-CBL-40G-3M.
Catalyst 9300L stack
Catalyst 9300L uses 320G stacking. Order STACK-T3A-3M-M for a 3 m Catalyst 9300L stack cable, or the stack kit where adapters are missing.
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| MA-CBL-120G-3M |  MA-CBL-120G-1M |  MA-CBL-120G-50CM |  MA-CBL-SPWR-30CM |  MA-CBL-SPWR-150CM | |
|---|---|---|---|---|---|
| Product Type | Stack Cable | Stack Cable | Stack Cable | StackPower Cable | StackPower Cable |
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MA-CBL-120G-3M is the Cisco Meraki 120G Stacking Cable, a 3 m data stack cable for MS390 switches. The 120G segment identifies the cable family, 3M identifies the length, and the MS390 stack rating is 480 Gbps. Use it for physical stacking, not StackPower.
MA-CBL-120G-3M fits all Meraki MS390 models. MS355 and MS450 stacks use MA-CBL-100G-3M for 3 m 100 Gigabit stacking, and MS210, MS225, MS250, MS350, MS410 and MS425 stacks use MA-CBL-40G-3M for 3 m 40 Gigabit stacking.
Meraki MS390 uses MA-CBL-120G-3M for a 3 m Meraki 120G stack cable. The same MS390 accessory family also has 0.5 m and 1 m lengths, and all MS390 models use the dual dedicated 120G hardware stack ports. Choose by measured rear-cable path.
MA-CBL-120G-3M gives an MS390 stack a 480 Gbps stacking bandwidth rating. The accessory data rate is 120 Gigabit, and the MS390 family rates physical stacking at 480 Gbps across a maximum 8 switches with faster convergence. Use the same cable family across the stack.
A full ring needs one MA-CBL-120G-3M cable per MS390 switch, so 8 switches need 8 cables. A chain uses one fewer cable than the member count, so 8 switches in a chain need 7 cables. Measure for 3 m reach before ordering.
MA-CBL-120G-3M stacks a maximum 8 MS390 switches in one physical stack. A full ring closes the last switch back to the first switch, while a chain leaves one open path and uses one fewer cable than the member count.
No, MA-CBL-120G-3M stack cabling belongs in the powered-off MS390 build step with links disconnected. Cable LEDs turn orange when a cable is detected and green when the stack status is good. Add the switches to Dashboard before forming the stack.
MA-CBL-120G-3M gives 3 m reach, while MA-CBL-120G-1M gives 1 m reach in the same MS390 120G stack cable family. Use MA-CBL-120G-3M for spaced rack positions and MA-CBL-120G-1M for adjacent switches. Both serve all MS390 models.
MA-CBL-120G-3M is the MS390 120G data-stack cable with 480 Gbps stack bandwidth, while MA-CBL-100G-3M is the 100 Gigabit 3 m cable for MS355 and MS450. Use the PID that matches the switch family.
MA-CBL-120G-3M is for MS390 120G stacking, while MA-CBL-40G-3M is the 40 Gigabit 3 m cable for MS210, MS225, MS250, MS350, MS410 and MS425. Equal 3 m length does not make the stack technology fit.
Cisco stopped selling MA-CBL-120G-3M on 29 October 2026. Cisco service ends on 31 October 2031 for MA-CBL-120G-3M. Cisco stopped selling the MS390 Series on 28 March 2025, and service ends on 28 March 2032 for the MS390 Series.
ORM offers MA-CBL-120G-3M new sealed and certified refurbished. Cisco's hardware term is full lifetime hardware warranty, and Cisco service ends on 31 October 2031. New carries up to 3-year extended warranty, certified refurbished carries up to 1 year, and returns are 30 days on every condition; terms apply.
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