Mob Disassembler

The Mob Disassembler is a block added by Factory Tech. It acts as a form of Mob Grinder, damaging and rapidly killing any mobs (and, depending on the config, any players) standing atop it. As well as the usual drops, mobs killed by the Mob Disassembler have a chance of dropping Monster Dust, a crafting component in some advanced Factory Tech recipes, including Energite and the Biosynthesis Unit.

Most Vanilla mobs have a guaranteed set of drops, as detailed below.

It also requires (default input from the top):
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Upgraded parts (i.e. Gold Circuit Boards, Gold Wire Motor) will increase this machine's speed.

Usage
When a mob that is on this list moves above the Mob Disassembler, it will be rapidly killed and drop the following, with a small chance of dropping some Monster Dust. Any mobs not on this list will drop their usual drops when killed. XP and player-only items are not dropped.

The codebase makes a mention of 'creeper spores' as a possible drop from creepers, however these appear to be unimplemented.