Although Apple has always liked to cut the interface on its devices, there is no denying that its products have the strongest expansion ability. Over the years, Apple's Mac series computers have won the favor of professional users by virtue of the excellent expansion of lightning interfaces, and serial connection has brought infinite possibilities to users. The newly released MacBook Pro was complained by many users once it was released, and only four lightning 3 interfaces were reserved, which made many old interface devices on users' hands unusable, The famous Apple accessory manufacturer OWC knew the problem and launched a new Thunderbolt 3 expansion dock for Apple users. It can expand 13 interfaces through Thunderbolt 3 interface, including one Thunderbolt 3, five USB 3.0 Type-A (two of which support high-speed charging), one USB Type-C, one FireWire 800, one miniDisplayPort, one RJ-45, one SD card reader, one S/PDIF A headset/microphone. Such configurations are more complete than desktop computers. In addition, 40Gbps bandwidth can guarantee unlimited transmission. The price is 279 dollars, which is a bit expensive. Users in need should pay attention to it