Cable Iphone to 24 desktop

Lacking some detail, I'll make some assumptions.

By "24 Desktop", I assume you mean an iMac which has a 24" screen.

That iMac has USB-C ports on the back.

It should have come with a USB-C to USB-C cable for the included keyboard, which will not work with an iPhone 11 Pro.

If you have a USB-C to Lightning cable you use with your iPhone, you can use that to connect it to the iMac.

Otherwise you can buy one from Apple or pretty much any retailer.

click here ➜ USB-C to Lightning Cable (1 m) - Apple

or here ➜ Anker USB-C to Lightning Nylon braided Cable - Amazon.com

What kind of cable came with the desktop? The iPhone 11 Pro has a lightning connector at the iPhone end, and you should be able to find a USB to lightning cable at the Apple Store in person, or online. The USB end would depend on your desktop if it is USB-A or USB-C. You can also look for one at an electronics store, just make sure it is labeled for MFi, which stands for Made For iPhone.

You're welcome.