High-concerned chemical: None Type: Modular Adapters CPU: RockChip RV1106G3 Core: Single core ARM -A7 Memory: 256 MB DDR3L Storage: 16GB EMMC : for Linux 5.10 with Buildroot Dashboard: Javascript, React, Tailwind Controller: GoLang Firmware: C Ethernet: RJ45 (up to 100 Mbps) USB: USB C (up to 480 Mbit/s) Video: Mini Expansion: RJ12 Expansion port Line voltage: 100-240V AC Frequency: 50Hz to 60Hz, single phase Operating temperature: 50 to 95℉ (10 to 35 ℃) Storage temperature: -40 to 116℉ (-40 to 47℃) Relative humidity: 5% to 90% noncondensing Height: 31 mm (1.22 inches) Width: 43 mm (1.69 inches) Depth: 60 mm (2.3 inches) Weight: 30 gram (4.79 oz) Color: Black Material: plastic Package Contents: 1 * Controller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.