I purchased this to use with the Akai MPX8 and it works properly.

They are nice and short so you can use them with regular midi cables as adapters for roland aira compact synths and the volca fm2.Works flawlessly.

This Type A adapter works with the Boss GT-1000Core. The red one does not as it's Type B. I needed a longer MIDI cable than the Boss branded cables available here on Amazon, and this does the trick.

Not listed, but this is the one you want for the Roland Aria mini boutique line.Take it easy on your gear, avoid socket damage, get the 90° (right angle) version even if you don't like it as much as the straight plug. Your gear will thank you.The Roland gear uses distressingly cheap 1/8" PCB mount female sockets. You need to go easy on them.

Works perfectly to control and clock sync Korg nts1 from anything