---
product_id: 2337103
title: "UM-ONE Mk2 USB MIDI Interface"
brand: "roland"
price: "348.94 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Roland"
url: https://www.desertcart.tn/products/2337103-um-one-mk2-usb-midi-interface
store_origin: TN
region: Tunisia
---

# USB bus-powered, no external power needed Mac, Windows & iOS compatible 1-in/1-out MIDI interface UM-ONE Mk2 USB MIDI Interface

**Brand:** roland
**Price:** 348.94 DT
**Availability:** ✅ In Stock

## Summary

> 🎹 Unlock pro MIDI power anywhere, anytime!

## Quick Answers

- **What is this?** UM-ONE Mk2 USB MIDI Interface by roland
- **How much does it cost?** 348.94 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/2337103-um-one-mk2-usb-midi-interface)

## Best For

- roland enthusiasts

## Why This Product

- Trusted roland brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Power:** USB bus-powered design means zero extra cables or adapters—just connect and create.
- • **Compact & Travel-Ready:** Super small footprint fits in any gig bag or studio setup—affordable pro-grade MIDI on the go.
- • **Seamless MIDI Connectivity:** Effortlessly link your gear with 1-in/1-out MIDI ports for flawless data flow.
- • **Cross-Platform Compatibility:** Works flawlessly with Mac, Windows, and iOS devices, including iPads via Apple Camera Kit.
- • **Precision Timing & Low Latency:** High-performance FPT processing ensures tight clock timing and ultra-responsive MIDI performance.

## Overview

The Roland UM-ONE Mk2 is a compact, USB bus-powered MIDI interface offering 1-in/1-out connectivity with high-performance FPT processing for low latency and precise timing. Compatible with Mac, Windows, and iOS (via Apple Camera Connection Kit), it features integrated USB and MIDI cables, LED data indicators, and a durable design trusted by professionals for reliable Sysex file transfers and seamless MIDI communication.

## Description

From the pioneer of the PC MIDI interface, Roland introduces the new UM-ONE mk2. A 1-in/1-out USB bus powered MIDI interface with high-performance FPT processing for low latency and tighter clock timing. Compatible with Mac, PC and iPad via Apple Camera Connection Kit, the super compact UM-ONE mk2 is an affordable, reliable, easy-to-use MIDI interface.

Review: Works Perfectly for my Application - 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% reliable Cables lengths are long enough for most applications. LED lights let you know it's functioning Cons: A bit Pricey but hey if it works it's worth it Mode Switch could be easier to see and use Included Instructions are useless Not 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.
Review: works with macbook pro and yamaha dgx-500 - 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.

## Features

- One-in/one-out MIDI interface with high-performance FPT processing
- Compatible with Mac and Windows operating systems, and now with iOS on the iPad via the Apple iPad Camera Connection Kit
- Data indicators for both MIDI input and output
- Conveniently integrated USB and MIDI cables
- USB bus-powered operation
- Super compact, affordable, and easy to use

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00967UN50 |
| Audio Input | USB |
| Best Sellers Rank | #2,376 in Musical Instruments ( See Top 100 in Musical Instruments ) #6 in Computer Recording MIDI Interfaces |
| Brand | Roland |
| Brand Name | Roland |
| Compatible Devices | Midi Devices |
| Connectivity Technology | MIDI |
| Customer Reviews | 4.5 out of 5 stars 2,851 Reviews |
| Global Trade Identification Number | 00761294503829, 04957054503826 |
| Included Components | Owner's Manual |
| Item Dimensions D x W x H | 1.2"D x 2.4"W x 0.6"H |
| Item Type Name | UM-ONE-MK2 One in Two Out Midi Cable (UM-ONE-MK2) |
| Item Weight | 0.2 Pounds |
| Manufacturer | Roland |
| Manufacturer Part Number | UM-ONE-MK2 |
| Maximum Sample Rate | 48 KHz |
| Model Number | UM-ONEMK2B |
| Number of Channels | 1 |
| Operating System | All |
| Product Dimensions | 1.2"D x 2.4"W x 0.6"H |
| Supported Software | ['Mac, Windows and iOS'] |
| UPC | 761294503829 761294503836 |
| Unit Count | 1 Count |
| Warranty Description | Consumer limited warranty: 1 year parts, 90 days labor. |

## Product Details

- **Brand:** Roland
- **Compatible Devices:** Midi Devices
- **Connectivity Technology:** MIDI
- **Number of Channels:** 1
- **Supported Software:** ['Mac, Windows and iOS']

## Images

![UM-ONE Mk2 USB MIDI Interface - Image 1](https://m.media-amazon.com/images/I/4192mV4sUmL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works Perfectly for my Application
*by F***N on October 3, 2022*

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% reliable Cables lengths are long enough for most applications. LED lights let you know it's functioning Cons: A bit Pricey but hey if it works it's worth it Mode Switch could be easier to see and use Included Instructions are useless Not 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.

### ⭐⭐⭐⭐⭐ works with macbook pro and yamaha dgx-500
*by T***S on January 3, 2013*

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.

### ⭐⭐⭐⭐⭐ The best!
*by A***R on February 25, 2026*

Worked the first time and instructions were spot on. Now I’m recording my Roland electronic drums and having blast!

## Frequently Bought Together

- Roland UM-ONE-MK2 One in Two Out Midi Cable
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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-05*