BG-USM-44
4x4 USB 3.2 Gen 1 Matrix Switcher with USB 3.2 Type-A/B/C and
TCP/IP Web GUI/IR/RS-232 Control
User Manual
BZBGEAR BG-USM-44 PRODUCT MANUAL
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 2
BZBGEAR BG-USM-44 PRODUCT MANUAL
TABLE OF CONTENTS
Statement 4
Safety Precaution 4
Introduction 5
Features 5
Packing List 6
Specifications 7
Operation Controls and Functions 9
Front Panel 9
Rear Panel 9
IR Remote 11
Power Control 11
Device-to-Host Routing Control 11
Navigation Controls 11
IR Cable Pin Assignment 12
Web GUI User Guide 13
Web GUI User Guide 13
Step 1: Obtain the Device IP Address 13
Step 2: Network Connection Setup 13
Step 3: Login to Web Interface 13
Web GUI Navigation Pages 14
API Commands 17
API Commands (ASCII Control) 17
General Command Notes 17
Connection Diagram 20
Troubleshooting 21
Tech Support 22
Limited Product Warranty Terms 22
Mission Statement 22
Copyright 22
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 3
BZBGEAR BG-USM-44 PRODUCT MANUAL
Statement
Please read these instructions carefully before connecting, operating, or configuring this
product. Please save this manual for future reference.
Safety Precaution
● To prevent damaging this product, avoid heavy pressure, strong vibration, or immersion
during transportation, storage, and installation.
● The housing of this product is made of organic materials. Do not expose to any liquid,
gas, or solids which may corrode the shell.
● Do not expose the product to rain or moisture.
● To prevent the risk of electric shock, do not open the case. Installation and maintenance
should only be carried out by qualified technicians.
● Do not use the product beyond the specified temperature, humidity, or power supply
specifications.
● This product does not contain parts that can be maintained or repaired by users.
Damage caused by dismantling the product without authorization from BZBGEAR is not
covered under the warranty policy.
● Installation and use of this product must strictly comply with local electrical safety
standards.
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BZBGEAR BG-USM-44 PRODUCT MANUAL
Introduction
The BG-USM-44 is a professional USB switching system designed to enable flexible
sharing of up to four USB 3.2 Gen 1 devices across four host computers.
Supporting data transfer rates up to 5Gbps with backward compatibility to USB 2.0
and USB 1.1, it is suitable for high-bandwidth peripherals such as docking stations,
cameras, and storage devices. Its 4×4 matrix architecture allows each device to be
independently routed to any host, providing efficient multi-system resource sharing
in professional environments.
The unit offers multiple control methods, including front-panel buttons, IR remote
control, RS-232 serial commands, and TCP/IP Web GUI management, making it
easy to integrate into both standalone and networked systems. It supports
plug-and-play operation across Windows, macOS, and Linux without additional
drivers, and includes LED indicators for active routing status along with preset
memory functions for quick configuration recall. Built with a metal enclosure and
featuring USB-A and USB-C device ports with integrated power delivery and
protection features, it delivers reliable performance for demanding AV, IT, and
control applications.
Features
● 4x4 USB Matrix Switching: Enables routing of 4 USB devices across 4 host
computers in a flexible matrix configuration.
● USB 3.2 Gen 1 Performance: Supports data transfer rates up to 5Gbps with full
backward compatibility to USB 2.0 and USB 1.1.
● Multi-Host Support: Allows simultaneous connection of up to four host computers
via USB-B and USB-C interfaces.
● USB-A & USB-C Device Ports: Provides mixed USB device connectivity with two
USB-A and two USB-C output ports.
● Integrated Device Power Delivery: Supplies 5V/1.5A on USB-A ports and 5V/3A
on USB-C ports for connected peripherals.
● Multiple Control Interfaces: Supports front-panel buttons, IR remote, RS-232
serial, and TCP/IP Web GUI control.
● Preset Memory Function: Stores and recalls up to 8 routing presets for fast system
configuration changes.
● Plug and Play Operation: No drivers required, compatible with Windows, macOS,
and Linux systems.
● LED Status Indicators: Provides real-time visual feedback of active host routing per
device.
● Over-Current Protection: Protects connected USB devices from electrical damage
and instability.
● Network Control Interface: Includes RJ45 Ethernet port for remote configuration
and control via Web GUI or TCP/IP.
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BZBGEAR BG-USM-44 PRODUCT MANUAL
● Compact Metal Enclosure: Durable rack-friendly design suitable for professional
AV and IT installations.
● IR Remote Control Support: Enables wireless switching and system control via
included IR remote and receiver.
● RS-232 Control Integration: Allows integration into professional automation and
control systems.
Packing List
● 1 × 4x4 USB 3.2 Gen 1 Matrix Unit
● 1 × 24V/2.7A Locking Power Supply
(Multinational)
● 1 × IR Remote Control
● 1 × IR Wideband Receiver Cable (1.5m)
● 2 × USB 3.0 Type-A to Type-B Cable (1.8m)
● 1 × 3-pin 3.81mm Phoenix Connector
● 4 × KM3×4 Machine Screws
● 2 × Mounting Ears (Rack/Surface Installation)
● 1 × User Manual
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BZBGEAR BG-USM-44 PRODUCT MANUAL
Specifications
Technical Specifications
USB Protocol
USB 3.2 Gen 1
Data Transfer Rate
Up to 5Gbps
IR Frequency
38KHz fixed
IR Level
5Vp-p
Transmission Distance
Up to 3m (USB 3.2 Gen 1 over passive cable at 5Gbps)
ESD Protection
IEC 61000-4-2 ±8kV (Air), ±4kV (Contact)
USB Architecture
Matrix Type
4×4 USB routing (4 host × 4 device independent switching)
Operating Systems
Windows / macOS / Linux
Driver Requirement
Plug and Play (no driver required)
Input Ports (Host)
USB-B Ports
2 × USB 3.2 Gen 1 Type-B (9-pin female)
USB-C Ports
2 × USB 3.2 Gen 1 Type-C (24-pin female)
Output Ports (Device)
USB-A Ports
2 × USB 3.2 Gen 1 Type-A (5V/1.5A output)
USB-C Ports
2 × USB 3.2 Gen 1 Type-C (5V/3A output)
Video Support Note
USB ports do not support DP Alt Mode or Power Delivery
Control Interfaces
Network Control
1 × RJ45 TCP/IP (100M Ethernet)
Serial Control
1 × RS-232 (3-pin 3.81mm Phoenix connector)
IR Control
1 × IR EXT (3.5mm stereo mini jack)
Local Control
Front panel buttons + IR remote control
Power
Power Input
AC 100–240V 50/60Hz
Power Output
DC 24V / 2.7A locking adapter
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BZBGEAR BG-USM-44 PRODUCT MANUAL
Power Consumption
Max 13.2W
Mechanical
Housing
Metal enclosure
Color
Black
Dimensions (W × D × H)
11 × 6.5 × 1.2 in [270 × 166 × 30 mm]
Weight
2.6 lbs [1.16 kg]
Environmental
Operating Temperature
32°F to 104°F / 0°C to 40°C
Storage Temperature
-4°F to 140°F / -20°C to 60°C
Operating Humidity
20%–80% RH non-condensing
Storage Humidity
10%–90% RH non-condensing
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BZBGEAR BG-USM-44 PRODUCT MANUAL
Operation Controls and Functions
Front and Rear Panel
Front Panel
No.
Name
Function Description
1
Power Button & LED
Indicator
Short press to power on the unit (LED turns green). Long press for 3
seconds to enter standby mode (LED turns red).
2
IR Receiver Window
Receives IR signals from the included remote control.
3
DEVICE 1 Button &
H1–H4 LEDs
Cycles through Host 1–Host 4 for USB Device 1. Corresponding LED
indicates active host selection.
4
DEVICE 2 Button &
H1–H4 LEDs
Cycles through Host 1–Host 4 for USB Device 2. Corresponding LED
indicates active host selection.
5
DEVICE 3 Button &
H1–H4 LEDs
Cycles through Host 1–Host 4 for USB Device 3. Corresponding LED
indicates active host selection.
6
DEVICE 4 Button &
H1–H4 LEDs
Cycles through Host 1–Host 4 for USB Device 4. Corresponding LED
indicates active host selection.
Rear Panel
No.
Name
Function Description
7
TCP/IP (RJ45)
100Mbps Ethernet port for Web GUI control and TCP/IP commands via
network connection.
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BZBGEAR BG-USM-44 PRODUCT MANUAL
8
RS-232 (Phoenix
3-pin)
Serial control port for integration with third-party control systems.
9
IR EXT (3.5mm
Jack)
External IR receiver input for extended IR control when front panel is
obstructed or hidden.
10
HOST 1–2 (USB-B)
USB 3.2 Gen 1 Type-B host inputs for connecting PC or host systems.
11
HOST 3–4 (USB-C)
USB 3.2 Gen 1 Type-C host inputs for connecting PC or host systems.
12
DEVICE 1–2
(USB-A)
USB device ports with 5V/1.5A power output for peripherals such as
keyboards, mice, or USB drives.
13
DEVICE 3–4
(USB-C)
USB device ports with 5V/3A power output for high-power USB
peripherals.
14
DC 24V Power
Input
Locking DC power input connector for 24V/2.7A power adapter.
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BZBGEAR BG-USM-44 PRODUCT MANUAL
IR Remote
The IR remote control provides convenient wireless operation of the USB matrix,
allowing users to switch USB routing and control system power without using the
front panel or Web GUI. It operates via a 38KHz infrared signal and works with either
the built-in IR receiver or the external IR EXT receiver for installations where the front
panel is not easily accessible.
Power Control
● Power Button: Turns the unit ON or places it into
standby mode, matching the front panel power function.
Device-to-Host Routing Control
The remote provides independent control for each USB
device:
● DEVICE 1 Section: Assigns USB Device 1 to Host
1–Host 4 using H1 / H2 / H3 / H4 buttons
● DEVICE 2 Section: Assigns USB Device 2 to Host
1–Host 4 using H1 / H2 / H3 / H4 buttons
● DEVICE 3 Section: Assigns USB Device 3 to Host
1–Host 4 using H1 / H2 / H3 / H4 buttons
● DEVICE 4 Section: Assigns USB Device 4 to Host
1–Host 4 using H1 / H2 / H3 / H4 buttons
Each selection instantly updates routing, allowing any device
to be independently assigned to any connected host computer.
Navigation Controls
● ◄ / ► Buttons: Cycle through available host selections sequentially for quick
switching without directly selecting H1–H4.
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BZBGEAR BG-USM-44 PRODUCT MANUAL
IR Cable Pin Assignment
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BZBGEAR BG-USM-44 PRODUCT MANUAL
Web GUI User Guide
Web GUI User Guide
The Web GUI provides a browser-based interface for configuring, monitoring, and
controlling the USB matrix over a network connection. It allows users to manage routing,
network settings, system configuration, and firmware updates without requiring direct
physical access to the unit.
Step 1: Obtain the Device IP Address
The default IP address is 192.168.0.100. To confirm the current IP configuration, send the
API command:
get ip addr
The system will return network information including IP mode, IP address, subnet mask,
gateway, and port settings. This ensures the correct address is used for Web GUI access.
Step 2: Network Connection Setup
Connect the matrix TCP/IP port (RJ45) to a network switch or router using an Ethernet
cable. Ensure the control PC is configured in the same IP subnet as the device. For
example, if the matrix IP is 192.168.0.100, the PC should be set to 192.168.0.xxx.
Step 3: Login to Web Interface
Open a web browser and enter the device IP address (e.g., http://192.168.0.100). The
login page will appear.
● Username: Admin
● Password: 1234
● Language: Select preferred language
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BZBGEAR BG-USM-44 PRODUCT MANUAL
● Click Login to access the system interface
Web GUI Navigation Pages
Information Page
Displays device model, firmware version, and network status. Also includes quick controls
for logout and standby mode.
Matrix Page
Used for USB routing control and preset management.
● Assign each USB device to Host 1–Host 4
● Save, recall, or clear up to 8 routing presets for fast configuration switching
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BZBGEAR BG-USM-44 PRODUCT MANUAL
USB Page
Allows renaming of host and device labels for easier identification. Supports up to 16
characters per name.
Network Page
Configures IP settings including:
● IP Mode (Static or DHCP)
● IP Address
● Subnet Mask
● Gateway
● Telnet Port and Domain Name
Changes require saving and may require system or network reboot to take effect.
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BZBGEAR BG-USM-44 PRODUCT MANUAL
System Page
Provides system-level configuration and maintenance:
● Change admin password
● Enable/disable panel lock
● Enable/disable buzzer sound
● Set RS-232 baud rate
● Firmware update (MCU and Web GUI)
● Restore factory settings or reboot system
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BZBGEAR BG-USM-44 PRODUCT MANUAL
API Commands
API Commands (ASCII Control)
The system supports ASCII-based API control via RS-232 or TCP/IP connection.
Commands can be sent using a serial terminal or control system to manage routing, system
settings, and network configuration.
● Default serial settings are 115200 baud rate, 8 data bits, 1 stop bit, no parity.
General Command Notes
● Parameters are case-sensitive and space-separated
● Return feedback is provided after each valid command
● Error codes:
○ E00: Unknown command
○ E01: Parameter out of range
System Control Commands
Command
Description
Example
Feedback
? / help
List all available commands
help
Command list
status
Get full device status
status
Power, routing, network status
get model
Get device model
get model
4x4 USB 3.2 Gen 1 Matrix
get version
Get firmware version
get version
MCU/Web version info
set power x
Power ON/OFF (1=ON, 0=OFF)
set power 1
Power on / initialization
get power
Get power status
get power
Power on/off
set beep x
Enable/disable buzzer (1/0)
set beep 0
beep on/off
get beep
Get buzzer status
get beep
beep on/off
set lock x
Lock/unlock front panel (1/0)
set lock 1
panel lock status
get lock
Get panel lock status
get lock
lock on/off
set baud rate x
Set RS-232 baud rate (1–6)
set baud rate 1
115200/57600/…
reboot
Reboot system
reboot
system restart message
reset
Factory reset
reset
restore default
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BZBGEAR BG-USM-44 PRODUCT MANUAL
USB Matrix Routing Commands
Command
Description
Example
Feedback
set device x in host y
Route device to host
set device 1 in host 2
device 1 → host 2
get device x in host
Get current routing
get device 1 in host
device 1 in host 3
Preset Management
Command
Description
Example
Feedback
set save preset x
Save current routing to preset (1–8)
set save preset 1
saved preset data
set recall preset x
Recall saved preset (1–8)
set recall preset 1
applied routing
set clear preset x
Clear stored preset
set clear preset 1
preset cleared
get preset x
View preset configuration
get preset 1
routing map
Network Commands
Command
Description
Example
Feedback
get ipconfig
Get full network
configuration
get ipconfig
IP/subnet/gateway
info
get mac addr
Get MAC address
get mac addr
MAC address
set ip mode x
Set IP mode (0=Static,
1=DHCP)
set ip mode 0
mode set
get ip mode
Get IP mode
get ip mode
static/dhcp
set ip addr x.x.x.x
Set IP address
set ip addr
192.168.0.100
IP set
get ip addr
Get IP address
get ip addr
current IP
set subnet x.x.x.x
Set subnet mask
set subnet
255.255.255.0
subnet set
get subnet
Get subnet mask
get subnet
current subnet
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BZBGEAR BG-USM-44 PRODUCT MANUAL
set gateway
x.x.x.x
Set gateway
set gateway 192.168.0.1
gateway set
get gateway
Get gateway
get gateway
current gateway
set tcp/ip port x
Set TCP/IP port
set tcp/ip port 8000
port updated
get tcp/ip port
Get TCP/IP port
get tcp/ip port
current port
set telnet port x
Set telnet port
set telnet port 23
port updated
get telnet port
Get telnet port
get telnet port
current port
set net reboot
Restart network module
set net reboot
network restart
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BZBGEAR BG-USM-44 PRODUCT MANUAL
Connection Diagram
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BZBGEAR BG-USM-44 PRODUCT MANUAL
Troubleshooting
Problems
Causes
Solutions
No Power / All LED off
Power supply not connected,
connected fully, or wrong power
supply.
Check if the power supply is
connected correctly and the
output voltage value is within
recommended specifications.
No sound or sound issues
The HDMI connection is faulty,
the audio format is not
supported by the displays, or
the source player is set to
another port for audio output
Check if the HDMI cables are
connected correctly.
Check if the audio format is
supported by the display and
that a user has not changed the
supported audio format on the
player`s audio output. Ensure
output settings from the HDMI
source device as set correctly.
No picture or picture flickers
The HDMI cable may be faulty
or the category cable quality is
faulty.
Check if the HDMI
and category cable connections
are correct and undamaged.
Change to another good
working HDMI cable or category
cable (CAT6 or better cable is
recommended).
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BZBGEAR BG-USM-44 PRODUCT MANUAL
Tech Support
Have technical questions? We may have answered them already!
Please visit BZBGEAR’s support page (bzbgear.com/support) for helpful information and
tips regarding our products. Here you will find our Knowledge Base
(bzbgear.com/knowledge-base) with detailed tutorials, quick start guides, and step-by-step
troubleshooting instructions. Or explore our YouTube channel, BZB TV
(youtube.com/c/BZBTVchannel), for help setting up, configuring, and other helpful how-to
videos about our gear.
Need more in-depth support? Connect with one of our technical specialists directly:
Phone
1.888.499.9906
Email
support@bzbgear.com
Live Chat
bzbgear.com
Limited Product Warranty Terms
Pro Line: 5-year warranty from the date of purchase for AV/Broadcasting products bought
on or after August 1, 2024.
Essential Line: 3-year warranty from the date of purchase for AV/Broadcasting products
bought on or after August 1, 2024.
Cables: Lifetime Limited Product Warranty.
For complete warranty information, please visit bzbgear.com/warranty.
For questions, please call 1.888.499.9906 or email support@bzbgear.com.
Mission Statement
BZBGEAR is a breakthrough manufacturer of high-quality, innovative audiovisual equipment
ranging from AVoIP, professional broadcasting, conferencing, home theater, to live
streaming solutions. We pride ourselves on unparalleled customer support and services.
Our team offers system design consultation, and highly reviewed technical support for all
the products in our catalog. BZBGEAR delivers quality products designed with users in
mind.
Copyright
All the contents in this manual and its copyright are owned by BZBGEAR. No one is allowed
to imitate, copy, or translate this manual without BZBGEAR’s permission. This manual
contains no guarantee, standpoint expression or other implies in any form. Product
specification and information in this manual is for reference only and subject to change
without notice.
All rights reserved. No reproducing is allowed without acknowledgement.
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