matters needing attention 1. Working conditions: temperature 0 ?? + 40 ??. Humidity 10-90% 2. Survival condition: temperature - 20 ?? + 70 ??; Humidity 5-90% 3. Before using this product, please read the product manual carefully and operate it correctly according to the instructions 4. Please do not disassemble this product by yourself. This product is not equipped with any parts that can be disassembled / maintained by yourself 5. Do not knock or impact the product. Do not put the product into water or other liquid Product warranty information 1. This product can be used to connect computers with usb-c interface to expand multi interface applications; 2. The computer with usb-c interface of this product can be connected with the adapter with PD function again, which can charge quickly and expand the multi port application. 3. Apple OS X Yosemite OS EI Capitan Chrome OS Windows 10 is supported in the product description Product model: bp-3433 Appearance size: 300 mm (L) * 215 mm (W) * 43 mm (H) Appearance process: aluminum alloy (sandblasting and oxidation treatment finish) + PA66 natural Silver Port parameters: 3 * usb-c / 1 * VGA / 1 * HDMI / 3 * USB3.0 / 1 * 3.5mm audio jack / 1 * SD card slot / 1 * TF card slot Usb-c PD charging: usb-c 3.0 100W PD fast charging (max) Output current: 1.5A shared by 3 * USB and 2 * usb-c Usb-c data transmission: 5Gbps USB3.0: USB3.0 interface data transmission 5Gbps HDMI port: support 4K@30Hz HD on the same screen SD / TF card slot: 312mb / S Application: type-C interface computer