Zed-bull key programmer 1- transponder cloning: 11, 12, 13, 33, 73, 4c (writing to 4c electronic key and batteryless tpx1 transponder), philips crypto 40 (some), 41(all), 42(all), 44(all unlocked vag), 45(all), texas crypto 4d(all 60-61-62-63-64-65-67)to batteryless tpx2 and silca electronic heads. Until now, common transponder cloning tools could only copy fixed Transponders. But the revolution that we started with our device, Zed-qx, is increasing with zed-bull. 41(nissan), 42(vag), 44(unlocked Vag) and 45(peugeot) transponders which normally known as can not be Copied, can be copied with zed-bull. Also you can copy 4c Transponders onto batteryless tpx1 4c glass transponders.