PCIe Serial Card, 1-Port RS232 w. low profile
[SD-PEX15021]

Works with ActiveHome Pro software in Windows 7 x64. Also works with the legacy ActiveHome software in the Windows 7 virtual PC "Windows XP mode". If you switch between these two modes without rebooting (e.g. after hibernating the virtual PC environment), for best results be sure to reset the affected COM port by disabling it and then re-enabling it in Device Manager.