Today I'll tell you about the new ODROID-N1 that will probably come soon and replace the XU4, which still sells quite well. You will be interested to know that it has the power of a cluster with five Raspberry Pi...
For me, the three companies that are making the Raspberry Pi Foundation a tough competitor are: HardKernel on the one hand with their range of ODROIDs, Shenzhen Xunlong Software CO., which has a lot of versions of *Orange Pi and Pine Microsystems Inc. with relative success thanks to their Pine64.
About its most relevant specifications:
Dimensions 90 x 90 x 20 mm (excluding cooler)
SoC Rockchip RK3399 hexa-core processor with a dual-core Arm Cortex-A72@2GHz, a quad-core Arm Cortex-A53@1.5Ghz, and a Mali-T860MP4 GPU.
eMMC 5.0 (HS400) flash storage, UHS capable micro-SD slot. Native SATA implementation.
Video Output HDMI 2.0 for 4K display.
4Gb DDR3-1866 RAM.
Connectivity Gigabit Ethernet port.
USB 2x USB 3.0 host ports, 2x USB 2.0 host port.
Expansion 40-Pin GPIO port with GPIOs, I2C, SPI, S/PDIF, PWM, ADC, UART, GND, 3.0V, and 5.0V
Power Supply 12V/2A (12V/4A adding two 3.5? HDD).
I read it has the Samsung Chromebook Plus specifications that cost $450, for about $110, although they are considering a lite version with the half of RAM and without SATA for $75.
It seems that the new SOC RK3399 will give a lot to talk about, as there are some boards that are mounting it. Some examples: AAEON RICO-3399 Pico-ITX, Firefly-RK3399, VideoStrong VS-RD-RK3399, Orange Pi RK3399 and Pine RockPro64 among many others.
As Operating System, It runs Debian Stretch, Ubuntu 18.04 and Android 7.1. I miss WiFi support, so much in need today. Works with Linux 4.4LTS kernel.
It is expected to go on sale in the second quarter of this year. I'll keep you informed.