there's a new model KI Pro with DDR4 & Android 7.1
Brand: MECOOL
Model: KI PRO
Type: TV Box
System: Android 7.1
Processor: Amlogic S905D
CPU: Cortex A53
Core: Quad Core
GPU: Mali-450
RAM: 2G RAM
RAM Type: DDR4
ROM: 16G ROM
Max. Extended Capacity: 32G
the best box at the moment for it's price would be the Xiaomi Mi TV Box (Official International Version only!)
of course you'll have to buy a usb rack with RJ45 for it to have a wired network connection.