Hi Demetre.
Have you studied the Compatibility list... Some are shown to be a bad
choice.. Some Kingston are listed as such.
My first two SD cards I got from Fry's Electronics and they were I think,
PNY brands. PNY I have found even their USB Sticks are junk.. But the two I
got were only $4 ea.. Bad choice for the Pi. One lasted a few weeks the
other until I had a sudden power outage about 6 weeks into it.
I now have 2 Kingston SDXC Card 128GB Class 10 SDX10V/128GB Running on TWO
pi.. Or Pi Squared.. lol
One is under heavy abuse.. I have tried experimenting with sudden power
outages, and constant read writes on one unit... And it has not suffered any
issues.. In Fact I even tried it from -20F to +140F for S&G's They are NOT
OVERCLOCKED.
The other runs w9hu BBS Linbpq..
What do you use to image the SD card I used to use Windows program WinDisk32
.. I think this is the biggest issue with the Pi SD Cards..
At least I have had no issues with mine since I stopped that practice.
Also what are you using that requires an external HUB.. You can also connect
a TNC (other serial devices) to the GPiO port instead of the USB. Have you
tried a PiTNC yet? Makes good topping.. :) it is the same size and sits atop
the Pi. Like Icing!!
73 Jerry N9LYA
PS I ll try to get back one the conv server as time permits..