A1.The main difference between the two products is the number of interfaces and parameters, as follows: 12-in-1 RGB docking station has 12 functional ports, including:1* HDMI port (4K@120Hz), 1*DisplayPort(4K@120Hz),2*USB-A 3.2 (10Gbps ), 1*USB-A 2.0(480Mbps ),1*Gigabit Ethernet port, 1*USB-C PD port, 1*3.5mm audio interface,1*IN:USB-C,1*TF card slot(480Mbps), 1*SD card slot(480Mbps) and 1*USB-C 3.2 port(10Gbps ,！！Only supports data transmission and does not support video output). 8-in-1 RGB docking station has 8 functional ports, including:1* HDMI port (4K@60Hz), 2*USB-A 3.0(5Gbps), 1*USB-A 2.0(480Mbps),1*Gigabit Ethernet port, 1*USB-C PD port, and 2*USB-C port(5Gbps ).