DOREMiDi MIDI Merge-3 MIDI Input 2 MIDI Output Support USB Power MERGE-3

This is my second product from this company, both have performed exactly as expected with a minimum of fuss. Solidly made and attractive.I should note, however, that I’m only using it to combine the outputs of two foot controllers, not playing a keyboard, so I don’t have a very demanding use case.Also it’s worth mentioning that you can’t use just any old 5v power supply, such as a cheapo phone charger, the specs say the device requires a 1-amp supply. I tried the cheap power source route on the other DoRemidi device I have, a hosting box, and it didn’t work at all.But with the proper supply, for my purposes these devices are excellent.

I have used a LOT of DOREMiDi products (Midi mergers, thru boxes, etc ) in my studio and I find that they are not only a great deal as compared to other similar manufacturers' products, they work flawlessly. I would not hesitate to recommend them for any quality studio- high end or garage band...they just WORK and do it well.Kudos to DOREMiDi for a great product line

Connected a the midi output of a digital piano and another controller with assignable knobs to this and fed a single midi output to my interface to control Korg Gadget with the piano plus the knobs. Works well! Saved me money.

I purchased the DoreMidi Merger to allow for multiple midi input from both a controller and a midi switch board out to my iRig. The Midi switch controller had an out, but the delay was far to great to make it useful so this was a fantastic solution to the problem.

Doesn't work as advertised. Note lock every time. Went back to midi solutions at twice the price but very reliable. Lesson learned.