Description:

I've already written about usage experience of Elecom Huge and SpaceMouse Pro Wireless. Both operate in 2.4Ghz: Elecom 2.403-2.479, SpaceMouse 2.404-2.477. But it's not all devices which do their work in 2.4Ghz and lay down on my desk (very close to each other, btw): Dell WK636 2.402-2.479, SteelSeries Arctis Nova Pro Wireless 2.402-2.48, standard Bluetooth devices like Wacom CTL-4100WL 2.402-2.48 etc.
To connect all those devices I use Orico A3H7 USB 3.0 Hub. When I did Elecom precision movement adjustments I noticed some glitches which appeared from time to time. That time I just postponed solving those problems till a more convenient time. Now I have such facts as:

  1. Changing USB 3.0 Hub position in space has an effect on wireless signal strength.
  2. It looks like USB 3.0 Hub metal case is not a good option for wireless signal too.
  3. Replacing hub to another one (Startech ST4300U3C3) nothing changes.
  4. Attaching devices directly to computer ports makes the situation better, but not perfect (and I don't have enough USB ports, btw).
  5. Power suppliers work as expected.
  6. I found a YouTube video with an interesting title: USB 3.0 Interference in 2.4 GHz
  7. I bought USB 2.0 Hub (plastic case, btw): Orico H727RK-U2
  8. After a week of usage I can say for sure - glitches have disappeared, input delay and overall smoothness are great!