If you own a computer store or a repair store, or something else that needs a high volume of licenses, Driver Talent Technician license is your best choice.
Note: The techinican license keys are valid on each computer for 7 days, and if you can't use up the machine allocation, the license code will be invalid after 3 years from the first use.
Technician License / 50 PCs
Technician License / 100 PCs
Technician License / 200 PCs
Technician License / 500 PCs