Ultra-fast inserters with no animations for maximum UPS. Includes variants for standard, long-reach, and (with Space Age) stack inserters. All support built-in filtering and custom pickup/dropoff settings. Originally created by gmyx, updated for Factorio 2.0, i just updated it to 2.1 and fixed the stack inserter that worked as a regular bulk inserter.
Mods introducing new content into the game.