The high-speed USB MIDI HOST box (UMH-20) is a new generation of USB MIDI host box launched by DOREMiDi. This product has a standard high-speed USB2.0, which has the characteristics of strong compatibility, fast transmission rate and high stability. The product has a firmware upgrade function and is perfectly compatible with all devices with USB MIDI interfaces.

   ❶ POWER IN: Product power supply interface, use USB-B plug to power the product, power supply voltage 5VDC.

   ❷ USB HOST: High-speed USB2.0 host interface, through the USB-A plug, connect to MIDI devices with USB MIDI device.

   ❸ MIDI OUT: MIDI output interface, using a standard five-pin MIDI cable, connected to the input interface of the MIDI device.

   ❹ MIDI IN: MIDI input interface, using a standard five-pin MIDI cable, connected to the output interface of the MIDI device.

   ❶❷❸❹: Work indicator for each interface.

   ❺Update Key: Support firmware upgrade, compatibility upgrade for special MIDI devices

   3. Steps for usage

   1) Power supply: Use a 5V USB power supply to supply power to the product through the "POWER IN" USB-B port (note: this port has no data communication function).

   2) Connect a USB MIDI instrument: Connect a USB MIDI instrument through the USB-A interface of "USB HOST". After the connection is successful, the indicator of "USB HOST" will light up

   3) Connect MIDI DIN instruments: The “MIDI OUT” of the product is connected to the “MIDI IN” of the instrument, and the “MIDI IN” of the product is connected to the “MIDI OUT” of the instrument. When the MIDI interface has MIDI message output/input, the indicator light of the MIDI interface will flash. 4) Product upgrade: If the product cannot be used on your instrument, please contact customer service to upgrade the firmware.

   5.Product Parameter

   Model：UMH-20

   Size (L x W x H)：115*53*33mm

   Weight： 150g

   USB HOST Communication Rate ：480Mbps(60MB/s)

   USB HOST Version：Standard high-speed USB MIDI HOST interface (USB2.0)

   USB HOST Compatibility： Compatible with all USB MIDI devices USB2.0/USB1.0/USB1.1

   MIDI Interface：High-performance FTP processing with one input and one output 16-channel MIDI interface, Built-in high-speed Isolator

   MIDI Compatibility Compatible with all musical instruments with MIDI standard interface

   Power In Interface： Powered by USB-B interface, 5VDC

   Indicator Light： Product power indicator, USB working indicator, MIDI output/output indicator

   Firmware Upgrade： Support firmware upgrade

   6. Precautions

   1) This product contains a circuit board.

   2) 2) Rain or immersion in water will cause the product to malfunction. 3) Do not heat, press, or damage internal components.

   4) Non-professional maintenance personnel shall not disassemble the product.

   5) If the product is disassembled or damaged by improper use, the warranty is not available.