USB Audio Interface


The UA-101 is a half-rack, high-speed USB audio interface designed to turn your USB 2.0-ready computer into a powerful digital audio workstation. No other computer connection is required to get a full 10 inputs and 10 outputs at 24-bit/96kHz to the computer. The UA-101 is built to offer low latency and extraordinary stability. It’s the easiest-to-use yet most-powerful compact audio interface available.

Dedicated Monitor Output

The UA-101 offers dedicated monitor outputs, kept separate from its channel outputs 1-8.

All Balanced I/O

The UA-101 features all-balanced inputs and outputs with input level selection switches on inputs 3-8, offering either +4dBu or -10dBu levels.

Included Signal Router/Mixer Application

The UA-101 comes with a powerful software application that allows you to route your inputs to various outputs and adjust your input monitor mix. This application allows the UA-101 to be reconfigured in a variety of ways without requiring any cable swapping or changes in your DAW application.

Built-In Limiter

The UA-101 allows you more freedom in setting your recording levels with the built-in limiter. Prevent clipping in your recordings. Get high-quality studio recordings with a wide dynamic range. No more worry about clipping a live recording or losing valuable signal because of brief loud transients.

Superb Audio Fidelity with 40-bit Internal Processing

The UA-101 uses premium analog components perfectly matched to its A/D converters for incredible fidelity. All audio is processed internally at 40-bit resolution to ensure accurate recording.


The UA-101 offers both MIDI input and output to connect external MIDI devices to your DAW.

Optical S/PDIF Input and Output

Channels 9 and 10 are dedicated S/PDIF digital channels, offering convenient connection to DAT, Minidisc, or other digital sources and destinations at up to 96kHz.

Low-Latency Driver Support

The UA-101 offers incredibly low latency through both WDM and ASIO 2.0 support for superior performance in your home studio.

High-Speed USB (USB 2.0) and Full-Speed (USB 1.1) compatible

The UA-101 is the first multi-channel high-speed USB audio interface to offer basic compatibility with USB 1.1. When connected through USB 1.1, the UA-101 will function as a stereo audio interface at 44.1 or 48kHz with any Win98 or later PC or Mac OS 9 or Mac OS X computer. When connected to Windows XP computer running USB 2.0, the UA-101 offers the full set of I/O options to your computer.

Number of Audio Record/Playback Channels
44.1/48/88.2/96 kHz
Record: 10 channels
Playback: 10 channels
Full duplex
192 kHz
Record: 6 channels
Playback: 6 channels
Full duplex
Signal Processing
PC interface
24 bits
AD/DA Conversion
24 bits (linear)
Sampling Frequency
Digital output
44.1/48/88.2/96 kHz
Digital input
44.1/48/88.2/96 kHz
AD/DA Conversion
44.1/48/88.2/96/192 kHz
Frequency Response
96.0 kHz
20 Hz to 40 kHz (+1/-1 dB)
88.2 kHz
20 Hz to 40 kHz (+1/-1 dB)
48.0 kHz
20 Hz to 22 kHz (+1/-1 dB)
44.1 kHz
20 Hz to 20 kHz (+1/-1 dB)
Nominal Input Level
Input Jack 1--2 (XLR type)
-50 to -10 dBu
Input Jack 1--2 (1/4 inch TRS phone type)
-35 to +4 dBu
Input Jack 3--8
-10 dBu/+4 dBu (balanced)
Nominal Output Level
Output Jack 1--8
+4 dBu (balanced)
Residual Noise Level (Typical)
Output Jack 1--8
-97 dBu
S/N RATIO (Typical)
107 dB
101 dB
USB (Hi-Speed, Full-Speed)
Digital input/output: Optical type (conforms to IEC60958, S/PDIF)
Front Panel
Input Jacks 1-2 (XLR type / 1/4 inch TRS phone type)
XLR type (balanced / phantom power +48 V)
1/4 inch TRS phone type (balanced)
Digital In Connector (Optical type)
Digital Out Connector (Optical type)
Headphones Jack (Stereo 1/4 inch phone type)
Rear Panel
Input Jack 3-8 (1/4 inch TRS phone type (balanced))
Output Jack 1-8 (1/4 inch TRS phone type (balanced))
Monitor Output Jack (L, R) (1/4 inch TRS phone type (balanced))
MIDI Connectors (In, Out)
USB Connector
Power Supply
DC 9 V (AC adaptor)
Current Draw
1 A
Owner's Manual
System Requirements
In case of USB 2.0 (Hi-SPEED USB) [Windows]
Microsoft® Windows® XP Home SP1/XP Professional SP1
Windows XP compatible computer equipped with a USB 2.0 (Hi-SPEED USB) port
Pentium® III, Pentium® 4, Pentium® M Processor 1.2 GHz or higher.
256 MB or more
System Requirements
In case of USB 1.1 (Full-SPEED USB) [Windows]
Microsoft® Windows® XP Home/XP Professional/Me/2000/98SE
Windows XP/Me/2000/Me compatible computer equipped with a USB 1.1 (Full-SPEED) port
Pentium®, Celeron® or Intel compatible processors / 600 MHz or higher
128 MB or more
System Requirements
In case of USB 1.1 (Full-SPEED USB) [Macintosh]
Mac OS X 10.2.3 or later
Mac OS 9.x
Apple Macintosh series with on-board USB port
PowerPC G3/600 MHz or higher (PowerPC G4 is recommended)
256 MB or more* 512 GB or more is recommended in Mac OS X
OMS 2.3.5 or later
FreeMIDI 1.35 or later (Mac OS 9.x)
Size and Weight
218 mm
8-5/8 inches
159 mm
6-5/16 inches
45 mm
1-13/16 inches
1.2 kg
2 lbs. 9 oz.
(0 dBu = 0.775 V rms)
*The specifications are subject to change without notice.



Updates & Drivers


If you have questions about operating your Roland product, please check our Knowledge Base for answers to the most common questions.
You can also contact our Product Support department by phone or email.
In addition, we have a library of Owner’s Manuals and Support Documents that you can download and reference.

Owner's Manuals