For on the go or stationary use the j5create has 2 Thunderbolt ports (male) that plug into the side of a MacBookPro replicating the 2 Thunderbolt ports of the Mac and adding 2 USB3, 2 cardslots (which I have not used) and an HDMI port (full-size) on the back of the product. J5 create JUE130 USB 3.0 Gigabit Ethernet Adapter USB - 1 Port(s) - 1 x Network (RJ-45) - Twisted Pair Product Name: JUE130 USB 3.0 Gigabit Ethernet Adapter Marketing Information: j5create's JUE130 is a quick and easy way to add a 10/100/1000 Gigabit Ethernet port to any Mac/Windows/Linux computer via a simple USB 3.0 port. Installing an outdated display adapter driver is by far the most common cause for a blank display. The website www.j5create.com always has the latest driver versions available and tells you the version number on the Support page. Check your driver version by accessing your Control PanelPrograms and Features to cross reference which driver version you have installed. Perfect for MacBook® and Chromebook™ — The JCA374 USB-C™ Multi-Adapter provides extra connectivity from your computer with 5 Gbps transfer speed. It allows you to add an additional USB™ peripheral, HDMI™ monitor or Gigabit LAN through your USB™ port. For ultimate functionality, use the JCA374 USB-C™ Multi-Adapter with j5create's JUP4275 for laptops/tablets, and/or the JUP1230.
I've tried submitting a ticket which they never replied to. I have a j5 create hdmi to USB adapter and the model is JUA254. I got this to be able to watch Netflix from my laptop and display is on my tv. When I bring up Netflix it doesn't play and the Netflix screen turns green. Has anyone else had this problem?

I have a Mac air and have installed the correct software according to the instructions.
JUA254 needs USB 3.0 port. Does your Mac Air have one to use for it? If not, did you try lowering the resolution of the TV from 1080p to 720p or?
One site for Apple says the Air has USB 3.0 and HDMI. Why don't you use that? Why have a cable if your TV is wireless or wired network smart TV? You could cast to it from the Mac Air.

To connect a MacBook Air to an external display (including a TV) your best bet is a Thunderbolt/Mini DisplayPort to HDMI adapter. You'll generally get better results than a USB to HDMI converter.
Very thorough discussion
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