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Keith McMillen Instruments MIDI Expander 5 Pin DIN MIDI Host for KMI Controllers
Keith McMillen Instruments MIDI Expander 5 Pin DIN MIDI Host for KMI Controllers
Keith McMillen Instruments MIDI Expander 5 Pin DIN MIDI Host for KMI Controllers
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Keith McMillen Instruments MIDI Expander 5 Pin DIN MIDI Host for KMI Controllers

Marsoni M251S
Sale price$109.00
Pay 4 payments of $27.25 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Keith McMillen Instruments MIDI Expander 5 Pin DIN MIDI Host for KMI ControllersThe KMI MIDI Expander is a 5 pin MIDI In & Out box that connects KMI gear to hardware devices. Adds 1x1 MIDI DIN I O to KMI products Appears as a discrete USB MIDI port when connected to a KMI USB MIDI controller Can be used to power host device Product Specs Item Number: 21405 Make: Keith McMillen Instruments Model: MIDI Expander Condition: Brand New Finish: Green Categories: keyboards and synths keyboard midi controllers Made In: China MPN: K 701
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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4.2 ★★★★★
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Verified Purchase
Jennifer Faber
Birmingham, US
★★★★★ 5
Great for dental appliances
Color: Pink+purple
My daughter has a dental appliance that can get food caught in it. We were told to try a water flosser to get the trapped food out. This has done exactly that. Very happy with it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 7, 2026
A
Verified Purchase
Amazon Customer
Charlottesville, US
★★★★★ 5
Fun new way of flossing.
Color: Blue+red
My 7 year old loves it and it works really well. He’s excited about teeth brushing time again accompanied by water flosser and it can be used in the shower!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2026
P
Verified Purchase
pbadia
Lexington, US
★★★★★ 5
Just as described
Color: Blue+red
Just as described. Quick shipping
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 4, 2026
A
Verified Purchase
Ashlee M.
Los Angeles, US
★★★★★ 3
Leaks
Color: Blue+red
Water leaks out of the button you press to change out the head so we will be sending back. Other than that it would be perfect, I’m sure it’s just a fluke thing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
S
Verified Purchase
Suzanne
Bozeman, US
★★★★★ 5
Value purchase
This item arrived well packaged, intact with timely delivery. I am satisfied with the product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 5, 2022

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