What USB Blaster cable?

Hello,

I want to use an USB Blaster cable for rapid FPGA prototyping on the MPS2+. 

The cables differ very much in price.  Is it recommended to buy an original Altera for over 200 Euro or can I use a cheaper nonamee one?

Could you please recommend a cable and an distributor (I am living in Germany) ?

Best regards,

Rainer