The OnePlus 7T Pro 5G McLaren Edition has been announced and it is an exclusive to T-Mobile USA. If you are yet to be on the North American carrier, then you need to join the train in order to enjoy this new OnePlus device.
There are no words on the pricing and availability of the phone yet, but be rest assured to get an update on that right on this site. This availability is actually the only way to get the OnePlus 7T Pro in the United States by the way.
The OnePlus 7T Pro 5G McLaren Edition has the same hardware as the 4G version of McLaren Edition other than the new modem. This means that compared to the OnePlus 7 Pro 5G, you gain a slightly faster chipset (S855+) and charger (Warp Charge 30T).
Do note that the original 5G model seems to have disappeared from online stores in the United States, however. T-Mobile in particular also discontinued the 4G version of the 7 Pro, but you can still find it on oneplus.com.