Pfsense & adsl+2
Pfsense & adsl+2
I didn't realize they were available until I searched for them. It looks like the manufacturer makes one. The problem is compatibility with your ISP. Some providers are more strict than others. Even if a device meets the same standard, the ISP might not support it. Also, with cable modems, the ISP can push configurations and sometimes firmware to the device—uncertain how this applies to add-on cards. My first step would be to verify PFSense's compatibility with these cards.
ADSL2+ cards lack drivers compatible with pfSense, so consider using a Draytek Vigor 130 in bridge mode instead.