Need help in selecting boards

[ripcord]

I have a Raspberry Pi3+ running OpenMediaVault. I have a USB 3.0 HDD connected to the Pi where I have installed Plex on OMV.

It is running fine so far but I have issues with
1. Buffering 
2. x265 decoding
3. 4K for future.

I am aware that Pi doesn't have dedicated USB 3.0 and Gigabit ethernet.

I was looking for some alternatives and came across the Pine boards.

There are many boards on Pine. Which one would suit my need of running Plex without above limitations and running NAS server.

Also are there any online retailers in Germany?

[tllim]

I have a Raspberry Pi3+ running OpenMediaVault. I have a USB 3.0 HDD connected to the Pi where I have installed Plex on OMV.

It is running fine so far but I have issues with
1. Buffering 
2. x265 decoding
3. 4K for future.

I am aware that Pi doesn't have dedicated USB 3.0 and Gigabit ethernet.

I was looking for some alternatives and came across the Pine boards.

There are many boards on Pine. Which one would suit my need of running Plex without above limitations and running NAS server.

Also are there any online retailers in Germany?

ROCK64 2GB board, easy way just order online at http://store.pine64.org