The auto-Miner.
One self-contained device that incorporates geological sensors to detect mineral rich asteroids, a turreted mining weapon and grapplers to pull the ore into your cargo bay once the ship is close enough. All in one easy-to-use device. Comes in two flavors; lazy and impatient

Both use 2 non-weapon device slots and are rather massive. No miner's cargo hold is necessary (hence the 2 slots). Power usage is handled with virtual device and is toggleable with invoke (also a safety feature) The lazy version uses a simple mining laser while the impatient version mounts the plasma cutter.