More tech trash than any other part of a turret, and no blueprint to learn. Read the bill as the value of a looted computer, never as a plan to craft one.
Price your turrets in tech trash before you place them. Each holds a camera and a computer, and between the two that is eight pieces of tech trash, worth more than all the frags and metal around them. Nobody pays it on purpose: the row marks the computer not researchable, so every one came from a crate, as its item page says, and the calculator just names the value of what you found.
That value only shows in a finished build. An auto turret needs the computer together with a CCTV camera, while a computer station takes a computer and no camera. So a computer never gets stranded the way a lone camera can. If cameras run short, the station is still a home for it.
The recycler gives back about half the tech trash: enough for one C4, with a spare piece on a lucky roll. That trade only makes sense for a computer no build of yours will ever use.
Questions
Targeting Computer ×10: how many resources?
High Quality Metal ×20, Metal Fragments ×1,000, Tech Trash ×50.