On Mon, Mar 15, 2021 at 06:07:18PM +0800, Charles Yeh wrote: > > Charles, could you help us out here? Which other device types use the > > alternate encoding (e.g. HX(A) or TB) if any? > > TA and TB are the same hardware design: no need to design a new type Thanks for confirming. According to the datasheet the maximum baudrate is 6 Mbps for TA and 12 Mbps for TB so I guess we need to keep them separate: https://prolificusa.com/app/uploads/2018/02/DS_PL2303TB_d20180327_v1.1.0.pdf Johan