On the front of the dock you have an HS II SD 4.0 card reader, and a 3.5mm audio jack (hurrah, for us wired headphone users)! You also get a USB-C 3.1 Gen 2 port that'll give you 10Gbps transfer speeds. It also doubles up as a charging port for your smartphone. Then there's the Thunderbolt 4 upstream port with 40Gbps transfer speeds.
On the back, you get a one GB Ethernet port; a Thunderbolt 4 downstream port with 40Gbps speeds; two HDMI 2.0 outputs that'll give you 4K resolution at 60Hz; two USB-A 2.0 ports with 480Mbps speeds and 5V/0.5A power (perfect for your peripherals); two USB-A 3.1 ports with 10Gbps transfer speeds. All and all, the Apex is pretty well connected.