The HiKey board is the first board to be certified 96Boards Consumer Edition compatible. This board is base around the HiSilicon Kirin 6220 eight-core ARM Cortex-A53 64-bit SoC running at 1.2GHz and delivering over 10,000 Dhrystone VAX MIPS total performance. The SoC also delivers high performance 3D graphics support with its ARM Mali 450-MP4 GPU.
1GB 800MHz LPDDR3 DRAM, 4GB eMMC Flash Storage and the standard 96Boards microSD v3.0 socket provide high performance. Flexible storage options and connectivity are available through 802.11a/b/g/n WiFi, Bluetooth 4.0 LE, three high speed USB 2.0 ports (1 OTG), an HDMI 1.3 1080p video output with audio, and Maker, DSI display and CSI camera interfaces. The board is the standard 96Boards credit-card form factor powered by an 8-18V DC 2A power supply.
Quick Start Guide
From this link  we can know how to get started with the HiKey
Hardware and Peripherals