A 25-year-old South Coast man with a love of luxury cars, who allegedly sold $17 million worth of illicit and prescription drugs on the dark web, allegedly gave free samples of cocaine, marijuana and ecstasy to his thousands of customers.

Cody Ward was arrested by officers from the State Crime Command's Strike Force Royden at the home he was renting at Callala Beach on Jervis Bay on Wednesday, following months of online surveillance of his alleged drug sales.

NSW Police arrested a man and two women in connection with an alleged dark web drug sales business. Credit:NSW Police

Police say that cryptocurrency seized by officers shows $17 million worth of transactions between Mr Ward and his large dark web client base.

The dark web is part of the internet accessible only via special software that allows users to remain anonymous by a layered encryption system.