... 3.3v logic level VCC,GND,TXD,RXD sampling workable Bluetooth TTL module3.3v logic levelVCC,GND,TXD,RXDAbout Sinforcon Sinforcon ... Parallel cables, USB to Audio cable. The chips are availavble for PL2303, CP2102, FT232RL, ZT213. SP485, MAX3232, CM119, etc. These ... CE, RoHS, CCC Siforcon means Sincere for connecting. We will be keeping Sincere for customers and contnuous developing on connecting cables ...