Fastest USB 4TB HDD?

[lettuce]

Am after a 4TB USB harddrive for my Xbox and whilst ive been looking ive noticed its seems hard to find out what speed USB harddrivers are weather there 7200 or 5400rpm. Does anyone know what the fastest USB 3 4TB is on the market at the moment?

 

[lettuce]

Doesn't that void warranty though?. Also id like to be able to take my games and plug into friends xbox's etc

 

[lettuce]

I use a 4TB Seagate Backup Plus for client backups and its fast.

https://www.seagate.com/gb/en/consumer/backup/backup-plus/#product_comparison

Do they still sell the 'Fast' variety of their drives?

Also when did manufacturer stop detailing drive speed of there products? 5400, 7200rpm etc??