This is my third arrow stapler and i love it! I build wildlife caging and spend days at a time stapling landscape cloth (1/2 galvanized mesh) to wooden frames. Overall very satisfied with this stapler.
They need to sit on one side of the cartridge, but it is not inherently obvious which side. The channel has a rail that causes this to happen, probably so it can be used for other kinds of staples and brads.
This unit does both, all with a rechargeable battery. It also does 18 gauge brads, so that does in one battery operated, rechargeable electric tool.
Forget about tucking your cable into a corner and securing it with this staple gun. Never shoots a staple just blinks green and red. Sometimes it does but if it hits a harder piece of wood, it just curls up on top.
The dual-purpose track is fussy. Which is not conducive at all to my needs. Not worth the risk of damaging my expensive cable.
This is an overly complicated tool that does a mediocre job at best. Buy an arrow product. Do not lose your money, this * doesn't work.