You gain the knowledge of how to create any technology that is either shown, referenced, or hinted at in Pondsmith's Cyberpunk series. This includes both the tabletop RPG & the video game adaptation, making you able to create neuralware, Braindances, Cyberdecks, software & programs, AI, cyberlimbs, robotics, The Soulkiller Program, hovertanks, powered armor, and so much more.
As a bonus, your cybernetic augmentations will never cause Cyberpsychosis in anyone.
You also become a skilled Netrunner, able to run circles around modern hackers, exploring the internet in ways few could ever hope to match, with AGIs being one of the only exceptions.