.... please .

accessory

. special case

various origin

.CPU: Allwinner H5, Quad-core 64-bit high-performance Cortex A53
.DDR3 RAM: 1GB
.Flash: no onboard Flash, but one eMMC flash module socket
.Connectivity: 10/100/1000M Ethernet, RTL8211E-VB-CG chip
.USB Host: USB Type A x 1 and USB pin header x 1
.MicroSD Slot: MicroSD x 1 for system boot and storage
.MicroUSB: Power input(5V/2A) and OTG
.PCB Dimension: 40 x 40mm

reference

 https://wiki.friendlyelec.com/wiki/index.php/NanoPi_NEO2_Black