Craft a hopper using 5 iron ingots and 1 chest
Place the hopper where you want items to move into it
Aim the hopper at a container if you want it to transfer items into that container
Place items into the hopper to move them into the connected container
Use a hopper under a block to collect items that fall onto it
Use a hopper under a mob farm or item drop area to collect drops automatically
Place a hopper into a chest setup to move items between containers
Right-click or use the hopper while sneaking to place it facing the correct direction
Use a hopper minecart for moving items under blocks or along tracks
Power a hopper with redstone to stop it from transferring items
Unpower the hopper to let item transfer resume