PoE Splitter that's compatible with the ROCK64?

[tllim]

Looking to replace my Pine A64 with a more powerful ROCK 64 4GB, but I need PoE power for my use case.  I understand the requirement for power is a 5V adapter with up to 3A current. 

So there are a few PoE Splitters out there, such as this one (http://www.poesystem.com/15.4w-poe-splitter/693.html) which can output 15.4W (5V/3A), but the specs tell me it's rated at 10/100Mbps, and has a 5.5mm barrel jack.  I'd have to get an adapter to drop to 3.5mm, but it's not worth it unless it can handle GbE speeds (or at least near).

Is there any known splitters out there that anyone could recommend?  Would save me time and potentially buying something that doesn't work.

Thanks!

Here is the PoE splitter for ROCK64 carry at PINE64 store: https://www.pine64.org/?product=rock64-poe-splitter