All handhelds supports USB4 which the only supported USB type is USB-C. In addition, the global standard for charging and transferring large amounts of information is through USB-C, mostly because of USB4. With that said, it makes sense to follow industry standards when it comes to handhelds. In addition, if you visited other hardware sites within this domain, you would know my preference for USB-C. Even if there was not a global standard, USB-C will still be the standard for Senitrus handhelds.
The USB-C port is at the bottom of the phone, and in the center. For those that don’t know – USB-C is a small oval shape port, and the cable that plugs in is reversible – so there is no up or down end.