List of clones[(source: https://www.reddit.com/r/gmrs/comments/10mnwba/review_of_the_cheapo_radtel_rt490_radio/)]:
List of transceivers where you can attach an external TNC to do packet radio over 9600 baud[(G3RUH developed a modem design which can do this)]:
Hardware where 9k6 is not possible: