The adapter includes a Gigabit Ethernet port, HDMI video output port that supports 4K @ 30Hz, a 3.5 mm audio jack, 3 USB Type-A 3.1 ports, microSD card reader, SD card reader, and a USB Type-C port.

You need USB-PD (USB Power Delivery) with appropriate power output to each port for each laptop. Laptops usually* need between 45W and 250W to charge, in the case of typical consumer grade laptops ...

However much extra it might cost to get a USB-C port on both sides of a laptop, it’s worth it. Again, that’s according to me, every other tech writer who reviews laptops, and everyone else ...

An unannounced dual-port 35-watt charger from the company was leaked back in April, so it’s likely that’s exactly the product we’re seeing today. The M2 MacBook Air starts at $1,199.