CAMOLA Upgraded USB Host MIDI Interface1-in and 1-out, MIDI Host Box High Speed USB to MIDI Converter, standard MIDI 16 channels, Compatible with USB1.0/1.1(UMH-21)

I can't believe it was so simple to get this up and running. Plugged a USB cable from my Roland RP102 digital piano to the Host input jack, connected the MIDI OUT to the MIDI IN of my Yamaha Reface CP (mini vintage electric piano keyboard), powered it all up and that was it. Fantastic!

The product looks good, but I cannot even start using it, because the cable delivered to power it is incompatible with the socket. Not sure probably the item was returned by someone before and they just randomly added a different cable. Very unproffessional.

Solved my USB to MIDI problem. I bought this particular one (UMH-21) because I read somewhere that other identical looking units are not necessarily as capable for use with keyboards. Don't know why but I can say that it work perfectly.

The media could not be loaded.  I bought this originally for my JT4000 and M-Audio Mini32 keyboard however that did not work, even with a DoreMidi 4 port hub. It does work well between old midi devices like my Palm IIIc and new USB synths. Support from the company is good. The price could be a bit lower for what it is, however postage was free which was good.

送り側にYAMAHA PSS-A50キーボード(ミニUSBのみ)と受け側にSONICWARE LIVEN Texture Lab(標準MIDI DIN端子装備)を接続してテストしましたところ、特に何の設定も無く無事動作しました。これさえあればUSBしか無い今時のキーボードコントローラー等からMIDI黎明期のビンテージシンセ等を動かすことができます。昔の機材も無駄にならずありがたいことです。