FTDI USB Virtual Com Port drivers can be downloaded from the list at the bottom of the page.
- Windows XP, Vista, 7, 8 (32 & 64 Bit) - Win_CDM v2.12.00 WHQL Certified.zip. Download, unzip, and then run the self-installing executable file. You can also click on "View" and then download the executable file directly from the next screen with the download button on the right.
- Max OS X - MacOSX_FTDIUSBSerialDriver_v2_2_18.dmg and see MaxOSX_TN_105 Adding Support for New FTDI Devices to Mac Driver.pdf for installation instructions
- Linux - LINUX_ftdi_sio.tar.gz and see LINUX_TN_101_Customising_FTDI_VID_PID_In_Linux(FT_000081).pdf for installation instructions
These drivers are also available from the FTDI web site at http://www.ftdichip.com/Drivers/VCP.htm.
Les Kerr has tested the loading of the drivers onto various platforms. Here are the results of his tests: