DC Unlocker is a software designed by DC-unlocker team which is not required any cable or adapter to unlock a datacard. It is easy to use with user friendly interface. There are a lot of version for DC Unlocker.
Here are DC Unlocker available to download :
DC Unlocker Client 1.00.0460.rar (Tested version, valid key guarantee)
DC Unlocker Client 1.00.0597.rar