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MA-CBL-SPWR-30CM
Cisco MA-CBL-SPWR-30CM 0.3 m StackPower Cable for MS390
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MA-CBL-SPWR-30CM is a StackPower Cable, the Meraki MS390 Power-Stack Cable, 30 centimeter, for StackPower power sharing on MS390 switches. Its 0.3 m length fits adjacent MS390 StackPower ports where the 1.5 m MA-CBL-SPWR-150CM length is not needed. This Cisco MS390 StackPower cable fits all MS390 models and uses the rear StackPower ports. StackPower power-sharing mode combines input power into a shared pool for switches and PoE loads. The Meraki MS390 stack cable role is power pooling, not data stacking, so MS390 data stack ports need separate 120G stacking cables. The accessory suits adjacent switches in one rack position where the shorter link matches close switch spacing.
MA-CBL-SPWR-30CM price is is available on request. Get immediate quote.
Request bulk order quote for MA-CBL-SPWR-30CM for additional pricing. Browse the full Cisco Meraki MS390 Stacking Cables series or explore all Cisco products.
0.3 m of cable length serves adjacent MS390 switches in the same rack space. Up to 4 switches take part in one StackPower power stack, and an 8-switch data stack needs separate power-stack groups when every member needs power sharing. Ring topology is the operating topology, and power-sharing mode is enabled by default after correct cabling. MA-CBL-SPWR-30CM uses either StackPower port on the first switch for the green-banded end and another switch for the yellow-banded end. Hand-tighten the captive screws. MS/CS 15 or later is the software floor for StackPower on MS390. No stack bandwidth figure applies because a StackPower cable carries power and no data.
Order MA-CBL-SPWR-30CM in new sealed or certified refurbished condition. Certified refurbished units are inspected and bench-tested between two compatible switches, and power sharing forms between the two switches. Count one 0.3 m cable for each adjacent StackPower link in the ring and confirm 0.3 m reach before the PO. Cisco stopped selling MA-CBL-SPWR-30CM on 29 October 2026; warranty options are new — up to 3-year extended and certified refurbished — up to 1 year; returns are 30 days on every condition, terms apply. Regional stock/RMA covers UK, EU, US and MEA, with RMA with advance replacement, PO accepted and Net-30 for government.
| Key Specs | Key Spec Values |
|---|---|
Stacks | MS390 |
Technology | StackPower |
Stack Features | 0.3 m power-sharing link / no dashboard setup |
Length | 0.3 m |
Lifecycle Status | Cisco stopped selling 29 October 2026 |
Topology | Full ring |
An existing MS390 power stack has one short StackPower link with damaged latches, pins or housing. The replacement must match the 0.3 m link and the rear StackPower ports, not the 120G data stack ports. Count the failed links and measure adjacent-switch reach before the PO.
An MS390 PoE stack needs pooled input power across neighboring switches. StackPower power-sharing mode combines input power from up to 4 switches for switches and powered devices. Keep each power stack at 4 members and count one cable for each ring link.
An 8-switch MS390 data stack needs StackPower split into more than one power-stack group. Each power stack stays at the 4-switch cap even when the data stack has more members. Group the switches, count the ring links and match 0.3 m or 1.5 m reach before the PO.
Catalyst 9300 StackPower ports
MA-CBL-SPWR-30CM fits MS390. C9300 and C9300X StackPower ports take CAB-SPWR-30CM-M for 0.3 m StackPower links. The equal length does not make the Meraki PID fit.
1.5 m switch spacing
MA-CBL-SPWR-30CM is the 0.3 m StackPower cable. MS390 racks that need 1.5 m reach take MA-CBL-SPWR-150CM for the longer StackPower link.
MS390 data stack traffic
MA-CBL-SPWR-30CM carries StackPower only. MS390 data stacking uses MA-CBL-120G-50CM, MA-CBL-120G-1M or MA-CBL-120G-3M on the rear stack ports for traffic between switches.
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| MA-CBL-SPWR-30CM |  MA-CBL-SPWR-150CM |  MA-CBL-120G-1M |  MA-CBL-120G-50CM |  MA-CBL-120G-3M | |
|---|---|---|---|---|---|
| Product Type | StackPower Cable | StackPower Cable | Stack Cable | Stack Cable | Stack Cable |
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MA-CBL-SPWR-30CM is the Cisco Meraki MS390 Power-Stack Cable, 30 centimeter. It is a 0.3 m StackPower cable for MS390 switches, and the SPWR segment marks StackPower rather than data stacking. The cable links StackPower ports and does not carry stack data.
MA-CBL-SPWR-30CM fits all MS390 switch models. C9300 and C9300X StackPower ports take CAB-SPWR-30CM-M for the 0.3 m length. Equal length does not make a Catalyst StackPower cable and a Meraki StackPower cable interchangeable, and MS390 data stack ports use data stack cables.
An MS390 uses MA-CBL-SPWR-30CM for 0.3 m StackPower links and MA-CBL-SPWR-150CM for 1.5 m StackPower links. MS390 data stacking uses MA-CBL-120G-50CM, MA-CBL-120G-1M and MA-CBL-120G-3M, so power and data cables are separate orders. Match the rear port type before ordering.
No, MA-CBL-SPWR-30CM carries StackPower power sharing and no data stack bandwidth. StackPower power-sharing mode combines input power from up to 4 switches into one shared pool for switches and PoE loads. MS390 data stacks use 120G stack cables instead.
Use one MA-CBL-SPWR-30CM for each 0.3 m StackPower link between adjacent MS390 switches. A full 4-switch StackPower ring has 4 links, so it takes 4 cables when every link is 0.3 m. Longer gaps use MA-CBL-SPWR-150CM for that link.
A StackPower power stack can contain up to 4 MS390 switches in a ring topology. A data stack can contain up to 8 switches, so larger data stacks need more than one StackPower power stack. Power-sharing mode is the default, and each group keeps its own power budget.
Power off the MS390 before work on MA-CBL-SPWR-30CM. Connect the green-banded end to either StackPower port on the first switch, connect the yellow-banded end to another switch and hand-tighten the captive screws. The StackPower feature needs no dashboard configuration after the cables are in place.
MA-CBL-SPWR-30CM needs MS/CS 15 or later on MS390 for StackPower. StackPower has no dashboard enablement step after the cabling is in place. Confirm the network firmware before the PO when a staged MS390 stack is below MS/CS 15.
There is no replacement PID for MA-CBL-SPWR-30CM. Cisco stopped selling the cable on 29 October 2026 and did not name a migration PID for the legacy switching accessory group. Confirm the 0.3 m MS390 StackPower requirement because Catalyst StackPower cables use different PIDs.
MA-CBL-SPWR-30CM is the 0.3 m MS390 StackPower cable; MA-CBL-SPWR-150CM is the 1.5 m MS390 StackPower cable. Choose the 0.3 m cable for adjacent switches in the same rack run, and choose the 1.5 m cable when the StackPower ports are spaced farther apart.
MA-CBL-SPWR-30CM is the 0.3 m StackPower cable for MS390. CAB-SPWR-30CM-M is the 0.3 m StackPower cable for C9300 and C9300X. The length matches, but MS390 power stacks and Catalyst 9300 power stacks use different PIDs, so fit is the deciding factor.
Cisco stopped selling MA-CBL-SPWR-30CM on 29 October 2026. Cisco service ends on 31 October 2031 for the accessory, and the cable serves MS390 switches. Cisco has not named a replacement PID for MA-CBL-SPWR-30CM.
ORM offers MA-CBL-SPWR-30CM as new sealed with up to 3-year extended warranty or certified refurbished with up to 1 year warranty. Cisco's MS accessory warranty term is 1 Year. Certified refurbished units are inspected and bench-tested between two compatible switches. Returns are 30 days on every condition, terms apply, with RMA with advance replacement.
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