The Asus ROG Phone has two USB-C ports - the extra one is for accessories. And there are plenty of them. To that end, pre-ordering from Asus Italy between October 18 (today) and October 24, you'll get 100 credit for accessories. The phone itself is 900 for the 8/256GB version, you can see it here. The retail box comes with the AeroActive Cooler, so that's a pretty good start. You can pre-order the Asus ROG Phone in the US as well - from Microsoft of all places. It's $900 for the 8/128GB model, $1,100 for 8/512GB. Here it is on Amazon too. Asus ROG Phone The AeroActive...
Source: https://www.gsmarena.com/deal_preorders_of_asus_rog_phone_in_italy_come_with__euro100_credit_for_accessories-news-33820.php