VDSL2 profiles: 8a/b/c/d, 12a/b, 17a bonding, and 35b over POTS Gateway, 1GbE LAN, EU+UK STD version The Zyxel VMG4005-B Series is a VDSL2 17a Bonding and 35b Single Line Bridge is a VDSL bonding bridge which provides excellent premium-class line speed