RolandUM-ONE-MK2 One in Two Out Midi Cable

After some research I bought this Midi Interface Cable because it was the cable of choice for my needs. I am using it to interface my Korg Volca FM2 with my Macbook Pro and Arturia Keystep 32 Keyboard. This allows me to connect the Volca FM2 to my MacBook Pro in order to us the DEXED and SYNTHMATA Applications (and some others) to edit the Volca FM2 sounds and also to Upload Sysex Files into the Volca FM2. At the same time I can use my Keystep 32 to play the Volca FM2.Part of this review is to help others as the included instructions were useless.It's important to first download the Drivers for the MacBook Pro (or what ever computer you are using, such as Windows), install them and then Restart youy computer. Once you do this the Roland UM-ONE-MK2 should be recognized by your computer. Also there is a little switch on the side that needs to be in the COMP position. It's TAB (Tablet) to the left and COMP (Computer) to the right as you face the unit. Make sure you set this before you connect it to your Computer (or Tablet). The switch is recessed and a bit tricky to see and move, I needed a thin paperclip to set it and was not sure at first if the switch even moved so I tried it a few times just to be sure and it did. Roland could have designed this a little better.One of the important points about the Roland UM-ONE-MK2 is it handles Sysex File Transfer perfectly. Many of the off brand Midi Interface cables do not, they either drop parts of the file, corrupt it or won't transmit them at all.Pros:It works for my needs and has been 100% reliableCables lengths are long enough for most applications.LED lights let you know it's functioningCons:A bit Pricey but hey if it works it's worth itMode Switch could be easier to see and useIncluded Instructions are uselessNot really a big deal but I would have preferred they used the newer USB C Connector instead of the older USB A, so I am using an adaptor.

The product works just fine. I am using it hooked to a midi keyboard, USB to a laptop, using with East West Symphonic Orchestra software to do music for an independent film. Roland makes good products. Plug and play. Drivers are automatically installed. Connection doesn't get any easier than that.designed to work with computer, or iPad according to manual. I'm not sure if that works or not, I don't have an iPad 🤷 it's worth the money to me. I had to have something that worked, I trust Roland products.

This connector cable still works like a champ. To me it has been an A+ item.

The Roland UM-1 is a great little USB-MIDI interface for connecting your older MIDI gear to modern devices. It’s easy to use, compact, and works smoothly with most apps. While you might run into occasional hiccups, it’s dependable and gets the job done without breaking the bank.

First of all, I only paid $22 for this adaptor a couple of days ago, but the supplier (Streamline Audio Video) appears to have run out. List price is a little steep.Some basic info:o The overall length is about 6 feet five inches.o The in/out midi cables are clearly marked, as in "connect to midi in" and "connect to midi out". Other cables are confusing because they consider themselves to be a midi device. I think of this cable as more of an adaptor, and so the non-ambiguity of the labeling is much appreciated.o The software comes on a CD and it up to date as of this writing (1/2/13). It is version 1.0.0. I checked the download site for updates, and 1.0.0 is the latest.----I used the CD to load the driver, rebooted the mac, and hooked the cable up. It worked first time.I tested it with the "Audio MIDI Setup" app which is in the "Utilities" folder under Applications on the mac. Make sure you select the MIDI window and expand the window in case the new device shows up off the main page (it happened to me).Try testing both channels by selecting the UM-ONE device, clicking on "Test Setup", and then clicking on the UP/DOWN arrows. You should hear the synthesizer in your piano make some noise when you send to it, and you should observe the arrows flash on the mac when you send from the piano keyboard .After that, I used "MIDI Monitor" (free from [...]) to verify that the interface was sending data from the yamaha DGX-500.Then I started using it with GarageBand 09 and everything worked fine.If you carefully read the reviews for other products of this type, as I did, you will find a large range of experience, both good and bad. I was scared off enough from all the other alternatives to try the Roland device, based on their reputation for quality gear.I also have a MIDI-Sport 2x2 from M-Audio, and I wasted a lot of time trying to get it to work with the DGX-500. The problem turned out to be insufficient USB power - i.e., after hooking up the midi-sport to a powered USB hub, it finally started to send from the piano (also make sure you pull the latest drivers). I never could get it to send from the mac to the piano, however.I think some of the problems with other devices may be due to how much power they draw from the USB bus. If you can't get yours to work, try a powered hub.I didn't want to deal with a powered hub, which is why I purchased the UM-ONE, and I'm glad I did.