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

Industrial Grade | +7~48V DC Input | Surge Protection | Surface Mountable | DIN Rail | 5 Gbps | Screw Lock

  • Protect Your Equipment: The 7-port Type-C hub supports 15KV ESD surge protection for each port 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 workstations installations in offices, labs, warehouses, and other industrial applications.
  • Upstream: 1 USB-C port, Screw-lock type
  • Downstream: 7 USB-C port, Screw-lock type
  • Power Connector: 2-Pin Terminal Block, DC Barrel Jack 2.1mm ID × 5.5mm OD
  • Mounting Options: Wall & Surface
  • Supply Current: 900mA USB Bus Power for Each Down-stream Port


In stock

Volume Pricing

Units Price
1 - 4 $169.95
5 - 11 $166.55
12 - 24 $161.45
25 - 49 $158.05
50+ $152.96

Also available from:

Model No. CG-7U3CML



The CG-7U3CML is a 7-port Type-C USB3.2 Gen 1 Metal Hub that complies with the Universal Serial Bus (USB) Specifications Revision 3.2 Gen 1 and works up to 5Gbps. It provides 1 USB-C upstream port and 7 USB-C downstream facing ports.

With the RISC-like USB3.2 controller, the CG-7U3CML is backward compatible with any USB3.2/2.0/1.1 devices which connected to its downstream ports.

The CG-7U3CML provides a unique self-powered mode working with a wide range (+7~48V DC) input DC power from its terminal blocks and DC jack connectors. It supports fast USB charging specifications by turning its downstream ports from a Standard Downstream Port (SDP) into a Charging Downstream Port (CDP) or a Dedicated Charging Port (DCP).

Since the USB is the most popular external port for the devices to connect to PCs and mobile devices, the CG-7U3CML provides an ideal solution to expand your USB ports immediately and save your investment.


  • Compliant with USB 3.2 Gen 1 Specifications
  • 1 upstream USB-C and 7 downstream USB-C connectors
  • Power connectors: terminal blocks and DC jack
  • +7~48V DC wide range power input
  • Supports USB-C screw-lock cables
  • Detects flip-able/reversible plugging
  • Support speeds: 5Gbps (Super-speed), 480Mbps (High-speed), 12Mbps (Full-speed) and 1.5Mbps (Low-speed)
  • Supports 15KV ESD surge protection for each port
  • Multi Transaction Translators (TT) per Hub
  • Supports fast USB Battery Charging: CDP and DCP modes
  • Provides 0.9A each for all 7 USB downstream ports
  • Supports wall and DIN RAIL mounting options
  • Operating Temperature: 0 to 60°C (32 to 140°F)
  • Storage Temperature: Standard Models: -20 to 75°C (-4 to 167°F)
  • Ambient Relative Humidity: 5 to 95% (non-condensing)
  • Altitude: Up to 2000 m
OS Support:
  • Windows, MacOS, Linux
Form Factor:
  • Dimensions (LxWxH): 163 x 55.0x 31.2 mm (6.41 x 2.16 x 1.22 in)
  • Weight: (product only) 300g (0.66 lb)

Package Contents:

  • USB 3.2 Gen 1 Type-C Hub
  • Product Manual
  • Din rail clip and screws
  • 2 Pin phoenix connector
  • 3′ Screw lock USB-C to USB-C cable

*Surface Mounting screws not included.



Product Specifications

Input Voltage

+7~48V DC

Over Current Protection


Power Source

2-Pin Terminal Block, AC Adapter Not Included, DC Barrel Jack 2.1mm ID x 5.5mm OD

Idle Consumption

110mA @ 12V Terminal Power, 114.7mA – Bus Powered

External Power Required


Country of Origin






Item Dimensions (L × W × H)

6.5 x 2.25 x 1.25 in.

Item Weight

10.2 oz.

Mounting Style

Surface / Wall Mount, Din-Rail Mount


7 USB Ports

Material of Construction

Galvanized Steel

USB Type

USB 3.2 Gen 1

Upstream USB Ports

1 Type-C Female USB

Downstream USB Ports

7 Type-C Female USB

Isolated/Surge Protected


Screw Lock Compatible


OS Support

OS Independent; No Additional Drivers Required

Operating Temperature

0°C to 55°C (32°F to 131°F)

Storage Temperature

-20 to 75°C (-4 to 167°F)


5% ~ 95% (non-condensing)

Product Information

1 year from date of purchase


GL 3523

Charging Protocols

Charging Downstream Port (CDP), Dedicated Charging Port (DCP), Samsung

LED Indicators


Per USB Port Current

2.4 Amp max per port, 0.9 Amp for all ports simultaneously

What's in the Box
Package Contents

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

ESD Protection

15KV Surge Protection for Each Port

Isolated/Surge Protected


Max Data Transfer Rate


Over Current Protection


Other Data




1.375 lbs


9.75 × 6.75 × 2.25 in

UPC: 045079162495
Reviews (1)

1 review for 7 Port USB 3.2 Gen 1 Type-C Hub w/ ESD Surge Protection & Screw Locking Ports

  1. Herman Pratt

    Fantastic little brick for the modern era
    I have about 20 USB devices connected to my computer. 4 can connect to my monitor, but I needed a lot more ports. All my cables are USB-C (to Micro B, Mini B, B, USB-C Device, etc). I try to make sure everything is always USB-C so I don’t have any issues. I have a lot of development kits, serial devices, debuggers, lab equipment, and other things connected to my computer. I could barely mamage it before, and as I scaled up I needed to make sure power could be delivered fine to all these devices. This is the perfect thing for that. I highly recommend it if you want to go full USB-C. I could not find any alternatives that offered this many ports at gigabit speeds. The only issue I have is it is a bit pricy, but I am paying hoping that in the future that more vendors will offer things like this.I also like that this can be mounted on a rail. I don’t use it that way, but if I ever decide I want to save more space on my table that would be great. I also love the screw-in USB-C cable. It is pretty cool and very secure. All the ports seem to have the ability to be secured in this way, but you only get one cable for this out of the box. I am sure that if this was used in an industrial setup or on the wall of a lab that this would be good to ensure nothing can come out or be stressed from the cable being pulled while on the wall. In any case, I recommend it, just note the price. It is well built. Just make sure if you want to power it that you bring your own DC power supply as it is not included.

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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

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

Model# CG-2PPW


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