[faragon]

I recommend the Pine 64 board. I bought one (2GB RAM, gigabit ethernet model, for 29$ [1]), and despite running its 4 cores at just 1.2GHz, it is quite speedy, and rock solid running Debian 24/7 as ARM64 build server.

[1] https://www.pine64.org/ (I'm not related to Pine, just a satisfied user)

[conradev]

I wish I had know about the Pine 64! I ended up buying an ODROID-C2 (http://www.hardkernel.com/main/products/prdt_info.php) when looking for an AArch64 board, which is pretty similar.

[CountSessine]

I think you're better off with the Odroid and it's Amlogic CPU - the Pine 64 has an Allwinner CPU. You'll have fewer headaches getting kernels to build for and run on the Amlogic chip.

[Palomides]

shame it's an allwinner SoC, they seem to have a history of GPL problems and binary blobs.

[Lichtso]

Except from HDMI almost everything is open or reverse engineered.

To me it was sill more attractive than the Ordroid-U3 with its Samsung chip, which boots only signed software and is totally undocumented. Same with the PI3 and its GPU code, which is needed to boot.