No needed PC only this device, uses new or unlocked 48 chips, being able to read 93LC66 data without programmer;It has a 9v battery so no outer supply needed; It supports FIAT`s SIENA and PALIO that use megamos crypto 48 chips,no need Pin Code, no need programming in car. Once written in, vehicle can be started. 48 chips will not be locked after writing in.