Not just a raw board, Quadra is a complete modern Linux computer that can be used as a server or light-use desktop and includes the case, heatsink, power adapter and HDMI cable. Just plug into a TV or monitor and a keyboard/mouse. No SD card needed as the OS (Debian Bullseye) is pre-flashed in internal memory. A great option instead of Raspberry PI when you don't need the 40-pin I/O header or want something more affordable that doesn't require assembly. The plus model adds a USB hub with 4 ports, adapter for faster WiFi (WiFi 5, 802.11ac, typically 150mbs up/down) and Bluetooth 4.2 for use with speakers, headphones, etc.
Allwinner H6 quad-core A53
ARM v8 64-bit SoC, 1.7ghz
2GB DRAM, 16GB eMMC (ROM)
Dual Band WiFi 5 (802.11ac)
Micro SD Slot:
Not needed for OS. Available for you to make backups or store data
4 free (1x3.0, 3x2.0 in included USB hub)
1 x standard HDMI, cable included
Resolution: default 1920px1080p. Video playback typical 360p.
5v 2a USA power adapter included
Size (with enclosure):
92mm x 92mm x 22mm tall
3.62" x 3.62" x 0.86"