I'm happy with my purchase. Very quick installation without any manipulation. Has been recognized by the Mac, the Windows 8 laptop and even an old laptop running Windows XP. I still have to test the iPad. Actually I also noticed a certain slowness in transmissions but entirely reasonable. I had an unpleasant surprise on delivery when he was claimed 38 customs fees but Amazon is "happy to pay us back." This is underway! Congratulations to the excellent business relations of this firm. I will continue to trust them.