Which cable to connect ipad pro 11 to laptop

The current iPad Pro 11" has a USB-C connection. To connect to a Windows PC that has USB connections, see: https://www.apple.com/shop/product/HN892ZM/A/mophie-usb-a-cable-with-usb-c-connector-1-m

Yours uses an USB type C cable which most modern computers already have.

A cable that is USB Type C to USB A.

These can be obtained from Best Buy or Amazon

mophie USB-A Cable with USB-C Connector (2 m)

https://store.apple.com/uk/xc/product/HN8A2ZM/A

mophie USB-A Cable with USB-C Connector (1 m)

https://store.apple.com/uk/xc/product/HN892ZM/A