Here's a clip from a DIY School Hearing Aids PDF File named (Choose Hardware-Programming Device for Widex). As you can see from the Legend; models marked as PRO can use the Widex PRO LINK.
Interestingly though, one of the new models (CIC Micro) is too small for including a wireless radio. So if you insist on using the the Widex PRO LINK for this model you will need to add an addon connector and the addon connector uses a battery for Pete's sake. Here's a clip from a DIY School Hearing Aids PDF File named (Fitting Instructions Widex Compass GPS);