7 Port USB 3.2 Gen 1 Hub w/ Surge Protection & Screw-Locking Ports

Industrial Grade | +7~24V DC Input | Surge Protection | Surface Mountable | DIN Rail | 5 Gbps | Screw Lock

  • Protect Your Equipment: The 7-port USB 3.2 Gen 1 features 350 Watts of surge protection to keep your connected peripherals safe from harm.
  • Super Fast Speeds: This USB hub is 3.2 Gen 1 compliant, ensuring super-fast 5Gbps data transfer speeds. It supports super speed, high speed and full speed which enables it to be compatible with USB 2.0 / 1.1.
  • Superior Build Quality: Housed in a rugged steel chassis with built in mountable flanges, the 7-port hub is perfect for installations in offices, labs, warehouses, heavy machinery, automation equipment, and other industrial applications.
  • Upstream: 1 USB port, Type B connector, Screw-lock type
  • Downstream: 7 USB ports, Type A connectors, Screw-lock type
  • Power Connector: 2-Pin Terminal Block
  • Mounting Options: Wall, Surface, and DIN Rail
  • Supply Current: 1.5A USB Bus Power for Each Down-stream Port


(3 customer reviews)

In stock

Also available from:

Model No. USBG-7U3ML



The USBG-7U3ML USB 3.2 Gen 1 Hub is an Industrial 7-Port Hub that complies with the Universal Serial Bus 3.2 Gen 1 Specifications Revision 1.0 and is capable of up to 5Gbps. It supports voltage of +7V to 24V DC input and provides 7 downstream facing ports with standard Type-A USB 3.2 Gen 1 connectors. It also supports screw lock features for both upstream (USB type B) and downstream (USB type A) connectors to prevent accidental disconnection.

With built-in single chip USB 3 Hub controller, this hub is backward compatible either when any one of downstream port is connected to an USB 1.1 or USB 2.0 compliant device, or when the upstream port is connected to a USB 1.1 or USB 3.2 Gen 1 compliant host.

The USBG-7U3ML Industrial USB 3.2 Gen 1 Hub is a mountable hub that provides a unique feature to work in the bus-powered mode without an external AC power adapter. It is very convenient for light power consumption USB devices to function in this mode without the external power supply.


  • For Systems with USB 3.2 Gen 1, USB 2.0 or USB 1.1 Ports
  • Provides 7 USB 3.2 Gen 1 downstream ports which managing up to 5Gbps:
  • Compliant with USB 3.2 Gen 1 Specifications Revision 1.0
  • Voltage range is +7V to 24V DC input
  • Provides 7 Downstream Facing Ports for Super-speed, High-speed, Full-speed and Low-speed traffic
  • 1 Upstream Port for Super-speed, High-speed and Full-speed traffic
  • Supports 5Gbps (USB 3.2 Gen 1), 480Mbps(USB 2.0), 12Mbps (USB 1.1) and 1.5Mbps (USB 1.0) Speed
  • Supports USB Screw-lock Mechanism for Secure Cable Connection
  • Multi Transaction Translators (TT) per hub
  • Supports Self-powered and Bus-powered Mode
  • Built-in 350-Watt Surge Protection for each port
  • Supports up to 1.5A USB Bus Power for Each Down-stream Port
  • Dimensions: 5.66″(L)x2.60″(W)x1.42″(H) (16.20×6.60×3.61 cm)(Length with ears 6.44″
  • Hub Weight: 0.775 lbs.
  • Supports Downstream Port Status with LED
  • Supports Battery Charging Protocol Rev 1.2
USB Devices:
  • Supports keyboard, mouse, monitor, scanner, printer, PC Camera, telephone, CD-ROM drive, Pen-drives, SATA enclosures, joystick, virtual reality helmet, modem, PBX and many more
 OS Support:
  • Windows 7, 8, 10, & Windows 11
  • Linux and Mac OS 10.X
I/O Hardware:
  • Supports 7 external USB 3.2 Gen 1 Type-A connectors and 1 Type-B Upstream connector, supports screw lock features with screw lock type cables
  • Supports 1 DC Jack and 1 2-pin Terminal Blocks for external power input

External Power supplies are sold separately:

Environmental Specifications:

  • Operating Temp: 0 to 55°C (32 to 131°F)
  • Operating Humidity: 5 to 95% RH

Package Contents:

  • USBG-7U3ML 7-Port Industrial USB 3.2 Gen 1 Hub
  • 6 ft.USB-A to USB-B Screw Lock Cable
  • DIN Rail Mounting Brackets w/ screws

*Surface Mounting screws not included.


Product Specifications

Operating Temperature

0°C to 55°C (32°F to 131°F)

Storage Temperature

-20°C to 85°C (-4°F to 185°F)


5% ~ 95% (non-condensing)

Max Data Transfer Rate


Surge Protection



GL 3523

Charging Protocols

Apple 2.4A, Charging Downstream Port (CDP), Dedicated Charging Port (DCP)

LED Indicators


Per USB Port Current

1.5 Amp

Product Information

1 year from date of purchase

Input Voltage

+7~24V DC

Power Source

2-Pin Terminal Block, AC Adapter Not Included

Max Wattage


OS Support

Win 11, Linux, Mac OSX, Win 10, Win 7, Win 8

What's in the Box
Package Contents

2-Pin Terminal Block, DIN Rail Clip(s), Hub, Screw Lock USB-A to Screw Lock USB-B Cable, Screw Pack

USB Type

USB 3.2 Gen 1

Upstream USB Ports

1 Type-B Female USB

Downstream USB Ports

7 Type-A Female USB

Screw Lock Compatible




Item Dimensions (L × W × H)

6.37 × 2.60 × 1.42 in.

Item Weight

0.775 lbs.

Mounting Style

Surface / Wall Mount, Din-Rail Mount


7 USB Ports

Material of Construction

Galvanized Steel

Country of Origin




Other Data




1.200 lbs


11.25 × 6.25 × 2.00 in

UPC: 729440691479
Hubs F.A.Q.

Product F.A.Q.

View frequently asked product questions below. Still need help? Reach out!

  • Can the hub be used without a power supply?
    In some cases, yes. USB peripherals that only require low power (i.e. keyboards & mice) can be used without a power adapter. Power in this case is drawn from the host’s USB port.

    When high-power USB peripherals are used, a power supply for the USB hub may be required. In other cases, the USB peripheral may require their own power adapters, in this case, a power supply for the hub may not be required. Without ample power though, the USB hub or connected peripherals may not operate correctly. It is recommended to use an included power supply when possible.

  • After waking up from sleep mode, my computer/host no longer recognizes my USB device.
    If the USB device does not function properly after your computer or host has been in sleep mode, it is likely that Windows turned off the USB Root hub in order to save power.

    To prevent this, follow the steps below (depending on your operating system).

    Windows 10 / 8

    1. On your keyboard, press the Windows key + X and select Control Panel.
    2. Click Hardware and Sound, then click Power Options.
    3. Click Change plan settings for the plan you want to change.
    4. Click Change advanced power settings.
    5. Click the plus sign (+) next to “USB settings” and “USB selective suspend setting” to expand the options and change the setting to Disabled.
    6. Click OK to apply the setting.

    Note: You may need to disconnect and re-connect your USB device after applying these settings.

    Windows 7 / Vista

    1. Click the Start button and select Control Panel.
    2. Click Hardware and Sound, then click Power Options.
    3. Click Change plan settings for the plan you want to change.
    4. Click Change advanced power settings.
    5. Click the plus sign (+) next to “USB settings” and “USB selective suspend setting” to expand the options and change the setting to Disabled.
    6. Click OK to apply the setting.

    Note: You may need to disconnect and re-connect your USB device after applying these settings.

    Windows XP

    1. On your desktop, right-click the My Computer icon and select Properties.
    2. Click the Device Manager tab.
    3. Expand Universal Serial Bus controllers by clicking the arrow to the left of it.
    4. Right-click the first USB Root Hub device and select Properties.
    5. Click the Power Management tab.
    6. Clear the box next to Allow the computer to turn off this device to save power.
    7. Click OK to apply the setting.
    8. Repeat steps 4-7 for any remaining devices in the Universal Serial Bus Controllers section with “Root Hub” in the name.

    Note: You may need to disconnect and re-connect your USB device after applying these settings.

  • The hub is properly hooked up, but is not functioning correctly. What can I do?
    Testing all setup components is the best place to begin troubleshooting. To determine the source of the issue, individually test your:

    • USB Cable by using it in another setup, or trying another cable.
    • Host USB Port by connecting another device or thumb drive.
    • Connected Peripherals by connecting directly to the host.

    Moving on to troubleshooting the hub itself. Attach a USB peripheral. The USB hub itself will not appear in hardware listings on your host’s system. USB devices connected however, will appear when connected. If the connected device is still not being found, try:

    • Installing the required drivers for the USB peripheral.
    • Install the most recent drivers for the USB controller and/or motherboard chipset.

    USB hubs do not require drivers or software.

    Troubleshooting the desired USB peripheral may be in order. If the peripheral is still not being recognized, attempt:

    • Attaching external power to the peripheral, if required.
    • Confirming if the peripheral functions on a standard USB port.
    • Testing if basic USB peripherals work, such as keyboards or mice.
  • How can external power be connected to the industrial USB hub?

    External power is supplied by connecting to the terminal block located on the hub. For when an external power adapter is required check out the Accessories & Replacement Parts section on this product page. To view all of our hub accessories and power supplies, visit the category here.

    To determine the power requirements, the equation to use is P = 5 * I * N, where:

    P is the power wattage.

    is the USB port voltage.

    I is the current of the USB port in Amps (USB 2.0 is 0.5A, USB 3.0 is 0.9A.

    N is the number of USB ports.


    As an example using the equation, a 4 port hub would reflect a minimum wattage of 18 watts.

    Knowing the minimum requirement, a proper power adapter can be chosen. In this case the voltage of a power supply should be within 7 to 24 or 7 to 40 Volts DC, depending on the specifications of the USB hub. Also, the power supply must convert AC to DC (no AC output).

    Power supplies often come with a voltage (V) rating and an amperage (A) rating. To determine the current in amps, use I = P / V, where the following is true:

    I is the current of the power supply.

    P is the calculated power of the hub.

    V is the chosen voltage of the power supply

    Continuing the example, the 4 port hub requires 18 W and the power supply you choose is 12V, the current of the power supply would be I = 18/12, I = 1.5A.


    Our full collection of power adapters can be found here.

Accessories & Replacement Parts

Accessories & Replacement Parts

12V 6A External Power Supply 2 pin configuration A for Coolgear USB 2.0 and USB 3.0 commercial or industrial Metal Hubs. The power supply is…

Model# 12V7A2P-B


In stock

Replacement 2-Pin Power Connector for CoolGear USB 3.0 Hubs such as USBG-7U3ML.

Model# CG-2PPW


In stock

USB 3 Cable 5ft. USB 3.0 SuperSpeed cable with type A to B connectors for Desktop, Laptops, and other USB 3.0 devices requiring data transfers of…



In stock

DIN Rail Mount Gives DIN Rail Mounting capabilities to USB hubs, serial adapters, IP Adapters, or Ethernet servers that are designed for mounting applications. For…



In stock

Reviews (3)

3 reviews for 7 Port USB 3.2 Gen 1 Hub w/ Surge Protection & Screw-Locking Ports

  1. J. Metzger

    Very pleased, it fit my needs perfectly and works flawlessly in my overlanding vehicle stuffed behind the original OEM radio location.

    It allows the powering up of more than two phones, a USB powered Bluetooth reciever, a 7″ Samsun tablet that removable, and And a USB charger for a Streamlight flashlight (a total of 5 devices with two extra ports and I am able to make use of one port to access with am laptop both phones as well as the tablet for file sharing on the go.

    Now my only problem is I think I should have ordered a 2nd one for the shear fact it’s made it possible to make use of so many USB chargeable devices, I now need one in the bed inside the topper.

    Currently using these in many installations on custom up fitting of client vehicles..

  2. Rob Boisvert

    No problems receiving or operating this hub, works great and did include the power supply. This USB 3.0 hub is just the right size for what it was needed for.

  3. Fred B.

    Have purchased from 8 different manufactures a powered USB hub to drive 6 GPRS/SMS USB modems. This is the first unit to not fail or intermittently provide power after a couple of weeks. I would give 5 stars if the mounting was more oriented to a data center communications rack and not a circuit breaker rack.

Add a review