Insignia USB-C AV Multiport Adapter with 4K HDMI and Power Delivery (NS-PU378CHM-C)

  • Model #: NS-PU378CHM-C
  • Web Code: 10460563
Sold and shipped by: Best Buy
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The Insignia USB-C AV multiport adapter lets you connect your laptop with USB-C port to an HDMI display, while also connecting a standard USB device and a USB-C charging cable. This adapter allows you to mirror your laptop's display to your HDMI-enabled TV or display.

More Information

  • USB-C AV multiport adapter gives you the convenience of being able to connect your laptop with USB-C port to an HDMI display
  • It also allows you to simultaneously connect a standard USB device and a USB-C charging cable
  • Connecting the adapter to the USB-C port on your laptop's and then to your TV or projector via an HDMI cable (sold separately) lets it output 4K video content like films and captured video
  • Standard USB 3.0 port lets you plug in devices such as your flash drive or camera, or a USB cable for syncing and charging your iPhone, iPad or iPod with transfer data speeds up to 5Gbps
  • You can also connect a charging cable to the USB-C port to charge your MacBook.

What's in the Box?

  • Type C Adapter


  • Parts - 1 Year(s)
  • Application
    Type Interface Devices
  • End Type #1
    USB 3.1 Type C
  • End Type #2
  • End Type #1 Female Or Male
  • End Type #2 Female Or Male
  • Other End Types
    USB 3.1 A
  • Connector Plating
    5'' min NI Underplated
  • Transfer Speed
    5 Gbps
  • Colour
  • Cable Length
    0.1 m
  • Cable Length (Inches)
    4 in
  • Collection/Theme
    Type C
  • What's in the Box
  • Warranty Parts
    1 Year(s)



Customer Reviews

2.0 / 5
Based on 7 review(s) More about Customer Reviews

Ratings in Detail

  • 5
  • 4
  • 3
  • 2
  • 1

Positive vs. Critical Reviews

Positive 42%

3 Reviews

Critical 57%

4 Reviews

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  • from Kelowna, BC

Second one dying....

This accessory sucks! This is the second one I get and it does not work. Drops connections and screen blacks out. Even loose connection all together. Looking for better supplier right now then I will again return the second one.

  • from PEI

It does work. Follow these instructions

Other reviewers are saying it does not work properly but it does. I use it with a 2017 Macbook Pro without issue. I had to figure out the proper way to use it though. First turn on your macbook (I have nothing plugged in to usb c ports, not even power cable). When booted, plug in the Insignia adapter with nothing connected to it ports. Then I plug in my mouse/keyboard dongle (move my mouse and all is good). And then, while my monitor is turned on, I plug in the hdmi cable and all is good. If I try plugging it all in together or already plugged in while booting the monitor does not show the screen, and it says no signal. I do the above and works every time.

  • from Sydney, NS

Do not buy this for late model MacBook Pro

It does not work reliably. Requires you to plug/unplug the adapter, sometimes even then this will not work.

  • from Renfrew, ON

Does not work with superdrive

USB does not put out enough power to support running the Apple Superdrive

  • from Toronto, ON

HDMI does not work reliably with the MacBook 2016 model

HDMI does not work reliably with the MacBook 2016 model. Appears to work about 15% of the time.

  • from Toronto, ON

USB 3.1 G2 vs USB 3.1 G1 (aka 3.0)

You should describe USB 3.0 products as USB 3.1 G1 and not just as USB 3.1, as that clearly implies that the device is more advanced than USB 3.0.

  • from USA

Not reliable

The HDMI port continues to stop working. Unplugging and then re-plugging the HDMI cable to the multiport adapter fixes it until the next time the signal goes out again. It stops working when switching from one login account to another, when the machine is waken from sleep, etc. The USB port appears to be working reliability. I have not tested the 3rd type C port.