we guarantee a speed of 20mbps with our speedconnect (vdsl2) products, all other presented speeds are theoretically up to feasable speeds in ideal circumstances. the effective speed will much depend on the quality of the modem and splitter that are being used, the wiring inside your home or company and also the distance to the nearest cabinet. email your full address to support[at]dommel[dot]com to know how far you are removed from the local cabinet.