There's nothing particularly wrong with this cable. It transfers data just fine at a decent rate provided that your operating system supports it. However, you'd be very hard pressed to find drivers that work in 64-bit operating systems.This cable also works as a power adapter.As an alternative to people who do run a 64-bit operating system, spend about $30 on a simple USB bluetooth adapter. Modern Windows OSes have built-in bluetooth drivers or you can easily find them on the manufacturer website. I believe Toshiba makes a bluetooth driver that works for many devices even if they are not Toshiba. With the Bluetooth adapter, you can use an open source program called BitPim (available on sourceforge) to transfer all of your ringtones and contacts and what not. You don't need specific drivers for your particular phone.