I’m not positive on the serial UART plug combination you want, so I’ll describe some things for USB plugs and then perhaps it’ll be easier to ask (it’s amazing to see what detail is needed for such a simple question). All of this excludes talking about newer USB3 connector type-C (Jetson has USB3 speed in some configurations, but Jetson does not physically have a USB3 type-C connector…the Jetson connector is a backwards compatible USB2 type connector which can function at USB3 speeds).
Hosts (including desktop computers and Jetsons) always have a female type-A USB connector if a device can be plugged into it (such as keyboard, mouse). This is true regardless of being full-size or micro-size.
Devices (such as printer, keyboard or mouse) always have a female type-B connector, or a hard wired equivalent straight to a cable (mice usually solder a cable instead of using a connector, but they could use a type-B connector). This is true regardless of being full-size, micro-size, or equivalent hard wired via solder to a cable.
Cables are ultimately always between a host and a device. Cables which are not hard wired with solder are almost always male at both ends, but type-A at one end and type-B at the other end. If the cable has male type-A at one end and female type-A at the other end, it is an extension cable and not used directly between a host and device…because of the cable that the extension plugs into, the result will still be type-A at one end and type-B at the other end.
OTG is special because depending on cable type-A or type-B the software will detect cable type and switch mode and hardware between host (if type-A is inserted) and device (if type-B is inserted) behavior. Because the OTG can be only host or device at any one time rules of type-A and type-B are still true. The micro-USB cable which a Jetson ships with has a type-B connector which is valid when Jetson is a device…a.k.a., recovery mode for flashing. For a HUB and other devices to connect and function on this port during normal non-flash operation, the cable has to instead be a type-A micro USB connector. You may have a short adapter which is an extension cord simultaneously going from full-size to micro-size. Look very closely at the micro connector on the short extension and compare it to the micro connector of the longer cable…there are very slight differences in their shape which can be used to detect which type is plugged into the OTG port.
A serial UART cable is a device at the USB side. If a USB cable is not hard wired to this, then the device side connector type must be type-B (micro or full-size) female. When a cable is hard wired to this device, the loose cable end must be male type-A. The devices you gave URLs to are simply hard wired with a cable length near zero, and the male connector is the loose end of the near-zero-length cable.
The serial port end of the adapter has no connector requirements, one can use loose wires or nice plugs/sockets. Sometimes only three of the six wires are used. Often 5 of the 6 wires are used when a nice connector is involved (the two extra wires would provide hardware flow control). The sixth wire could be used to draw 5V power from the USB connector of the host, but this is irrelevant for a Jetson (which is already powered). So long as the interface voltage of the serial UART and the serial port are compatible, most anything works. Default level on the JTX1 serial UARTs is 3.3V (there is a jumper which can alter this to 1.8V).
Are you looking for different USB ends, or are you looking for different connectors at the UART end? Most of the options available are for interface voltage or for the non-USB UART end.