What is it? A USB-C sync and charging adapter for the Palm serial dock connector. Problems with other adapters A common problem with other adapters is that they often require a hardware RS-232 serial port, making use of an additional adapter with modern hardware necessary. There was also a USB-equipped docking station available but that one is very large, too. Also it has only USB-A so strictly speaking there is still an adapter required for use with many modern devices. USB-C all the things!
