... USB socket 1,super mini connector,4 pins 2,high quality and competitive price 3,hot sale 4 pin USB SMT socketInsulation Resistance: 100M ... and telephony-ISDN, PBXs, Cell phones, PDAs, MP3 Players, Other portable and hand-held devices.Kinds:Selective Gold Plated 1 u ... Plated 15 u''Selective Gold Plated 30 u'' Electric magnetic 4 pin SMT USB socket connector