As we do not have an effective user experience with the product, we have forwarded your question to the community so that it can possibly be answered by another customer.

I was able to do some research and sure enough, we don't have the version you want in our range. I have forwarded an enquiry to our purchasing department. Unfortunately, we cannot guarantee success and if successful, the product will be found under "USW-Pro-XG-24-PoE" in our shop.

The Ports page from my UDM Pro UI confirms what you state. It lists ports 25/26 as SFP28 ports (25Gbps), not SFP+ (10Gbps).