- No USB 5V 1A power supply included (title seems to indicate one is, but it just comes with a cable to connect to a USB power supply)
- +5V output on HDMI is well below spec (I measured 4.45V on the output with a steady 5.05V going in on USB)
- Couldn't muster 4K reliably (I could only get it to work at 1080p, and that was after I modded the hardware to use less power -- I could only reliably get 720p prior to that).
- If you're desperate, you can take the box apart and stick in a longer HDMI cable on the input. It's got an HDMI receptacle inside the box.
Here's my experience with this in more detail.
I plugged it into my 4K HDMI test tool, and I couldn't get 4K to pass through. Then I tried 1080p -- no dice. Then 720p -- got a signal through, no pixel errors! Yikes... I'd really like to have at least 1080p. So I decided to crack it open and see what's going on with it.
I open it up to find that it's a VERY shady little design. It's basically an HDMI receiver chip that strips off the HDCP content protection, and then goes into a chip that amplifies the HDMI signaling. I suppose if you have a use for something that strips HDCP, this could be a useful little box if you could get it to work reliably at the rate you need, but that wasn't my purpose (I need something to route clean HDMI from a camera to multiple receivers, so no HDCP concerns for my needs).
Now that I think of it, it's possible that this box will only pass 4K if both outputs are connected... I might need to try that. I am still not very happy with this kind of design -- it's quite outdated, and chips from numerous vendors exist to do a proper HDMI splitting with redriving on each port, and this isn't what you're getting here. In summary, if you need top performance, you'll want to find a splitter that uses a proper HDMI splitter chip from the likes of Explore or Lontium, rather than this more hacky circuit they're using in this design.
- Boxed-product Weight: 113 g
- Item Model Number: TechIntheBox
- ASIN: B01N4O8DKV
- Date first available at Amazon.com.au: 15 April 2018
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