Trend jigs are over priced. I have a Porter Cable 4212 dovetail jig, a superb jig. It will cut dovetails, box joints, half-blind dovetails, rabbeted half-blind dovetails, and dovetail dados, probably missed a few joints.
Porter cable 4212 and 4216 models are being sold online. You can check those out. Also Leigh is also available but is a little costly