M-audio Midisport Uno 1x1 MIDI to USB Interface

Perfect working order - please check system requirements

Barely used as I also have the 2x2 version

Free postage

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From the manufacturer:

Features

* 1-in/1-out MIDI interface

* 16 MIDI input channels

* 16 MIDI output channels

* Bus-powered—requires no external power supply

* Extremely compact and lightweight for mobile or desktop use

* Built-in USB and MIDI cable

Specifications

* Size/weight: 3-1/2” (w) x 7/8” (h) x 1-13/16” (d) x 116" (cable); .075 lbs.

Requirements

* Compatibility

* MME

* Mac OS X Core MIDI

* Minimum System Requirements (PC)

* Windows 98SE / Me / 2000 (SP4) / XP (SP2)* / Vista (32 bit) / Windows 8, 8.1 and Windows 10

* Home and Professional Edition only. Windows Media Center Edition is not supported.

* Minimum System Requirements (Mac)

* OS X all instances up to 10.12.1