7 ports: For example, the Satechi Pro Hub Slim docking station is equipped with a USB4 port that supports up to 100W direct charging or 40Gb/s data transfer speed, a 4K HDMI port, a USB-C port that supports up to 10Gb/s data transfer speed, two USB-A ports with data transfer speeds up to 10Gb/s, and SD and microSD card readers with UHS-I data transfer speeds.

9 ports: Take the y-eaykoor 9-in-1 Type-C multi-function docking station as an example, it has 3 USB3.0 ports, 1 SD/TF card reader slot, 1 HDMI port, 1 VGA port, 1 RJ45 port, and 1 PD 100W charging port (C port).
13 ports: The Thunderbolt 3 docking station released by the famous Apple peripheral manufacturer OWC has 13 interfaces, including five USB 3.1 Gen.1 5Gbps Type-A, SD card reader, 3.5mm headphone/microphone jack, optical S/PDIF, IEEE1394 FireWire 800, Gigabit Ethernet, two Thunderbolt 3, and mini DisplayPort.
16 ports: The 16-in-1 Thunderbolt 4 Dock launched by y-eaykoor is aimed at Apple’s 14-inch and 16-inch MacBook Pro, equipped with six USB-A ports, two USB-C ports, two HDMI ports, two DisplayPorts, an Ethernet port (2.5 Gbps), SD and microSD card readers (UHS-II) and an audio input/output jack.
18 PORTS: The CalDigit Thunderbolt 4 Pro Dock offers 18 connectivity ports including three Thunderbolt 4 (40Gb/s) ports, five USB – A (10Gb/s) ports, three USB – C (10Gb/s) ports, one SD and one microSD 4.0 UHS – II card reader, one DisplayPort 1.4 port, and one 2.5 Gigabit Ethernet port.