The RK3399 is 6 six core processor which combines dual-core ARM Corteex-A72 @2GHz and quad-core ARM Cortex-A53 @1.5GHz) and also Mali-T860MP4 GPU.
The amount of RAM is 4GB DDR3-1866 MHz and the board includes also 2x SATA3 (PCIe - SATA3), eMMC 5.0 interface, 2x USB 3.0 (host), 2x USB 2.0 (host), gigabit ethernet, 40 pin header and HDMI 2.0 for 4K resolution.
The size of Odroid-N1 board is 90 x 90 x 20 mm.
The recommended power supply is 12V/2A and if you connect both HDD you should use power supply with 12V/4A.
The price should be around 110 USD.
The mass production is planned to May/June of 2018.
There is possibility to make Lite version (Odroid-N1-Lite) which will be contain 2GB RAM. without SATA interface with the price around 75 USD.