"SoC (one or the other)
Rockchip RK3399 hexa-core processor with 2x ARM Cortex A72 cores up to 2.0 GHz, 4x Cortex A53 cores, and an Arm Mali-T860 MP4 GPU
Rockchip RK3399Pro hexa-core processor with 2x ARM Cortex A72 cores up to 2.0 GHz, 4x Cortex A53 cores, an Arm Mali-T860 MP4 GPU, and a Neural Network Processing Unit (NPU)
System Memory – 2 or 4 GB LPDDR3, dual channel
Storage – eMMC flash module, micro SD card (bootable)
Video Output & Display Interfaces – HDMI 2.0 output, eDP connector, MIPI connector + TP connector + backlight supply, DisplayPort via USB type C
Audio – ES8316 Audio Codec; Headphone/MIC jack
Connectivity – Gigabit Ethernet, SDIO socket for WiFi and Bluetooth module
USB – 2x USB 2.0 host ports, 1x USB 3.0 port, 1x USB 3.0 type C port with DisplayPort Alt-mode
Camera – Parallel CSI, 2x MIPI CSI
Debugging – 3-pin serial header
Expansion
40-pin GPIO header (I2C/SPI/I2S/UARTs/GPIOs)
PCIe 4x slot
Misc – Heatsink mounting holes + FAN header, Power/Reset/Recovery buttons, IR receiver
Power Supply – TBD
Dimensions – 133mm x 80mm x 19mm (Same as Pine64 board)

RockPro64 With Wireless Module – Click to Enlarge

The board will support Android and Linux distributions.
One positive is that the PCIe interface is actually exposed, and cost-down has been achieved partially but not including storage, nor wireless module by default, and install rely on either a micro SD card or eMMC flash module to boot the operating systems, and external wireless module for WiFi and Bluetooth.

RK3399 based Rockpro64 will launch on March 15 for $59 to $65 with 2GB RAM,
and $79 with 4GB RAM,"

ça au moins ça roxxe pour un prix raisonnable

http://www.minimachines.net/actu/rk3399-59540