We are a professional manufacturer of RFID card & wristband etc with nice price & high quality.
Different frequency chips are available all the time.
125Khz: TK4100; Hitag1; EM4200; etc
13.56MHz: NXP Mifare 1k S50 & Ultralight;
I CODE 1; TI2048; etc
915MHz: Gen 2; Higgs-3; etc
Please kindly let me know if any interests or questions. Thank you!