https://www.theverge.com/circuitbreaker/2018/11/5/18063762/hyperdrive-ipad-pro-usb-c-hub-hdmi-headphone-jack-sd-card

One of the biggest advantages of the USB Type-C port on the new iPad Pro is that it opens up the possibility for the tablet to be used with existing laptop USB-C hubs. However, that doesn’t mean that the iPad Pro won’t get a couple of dedicated hubs of its own, and this HyperDrive model will be one of the first.

The dock sits flush with the side of the display when attached, and adds many of the same ports you’d expect to see on a laptop. There’s an HDMI port, SD and microSD card slots, USB-A, and USB-C PD ports, as well as a 3.5mm headphone jack that Apple didn’t include on the tablet. However, despite the range of ports, the things you’ll be able to do with connected devices may still be limited. For example, while the image above shows a USB thumb drive attached, it won’t show up as external storage within iOS. Hyper claims you can import photos and videos, but it’ll require a third-party app and won’t be plug-and-play like you’d expect on a MacBook.