... :T5577,T5567 3.Memory:224 Bit 4.ISO 11785/11786 blank key (EM4200,t5577,mifare 1K/4K/ULtralight/desfire etc) Feature:Dimensions ... , 2750oe, 4000oeNumbering: Jet dot/ Thermo transfer/ Laser engraveBarcode printingSignature panel blank key (EM4200,t5577,mifare 1K/4K/ULtralight/desfire etc)