The Mass Storage Matter Mover is a Frozen Factory I/O port that allows rapid transfer of materials into a Mass Storage system one stack at a time instead of only 25, allowing up to 150 items to be transferred at once. It requires a Mass Storage Controller attached to the Mass Storage grid in order to function, as it draws power from the Controller itself.
A unique block, the Mass Storage Matter Mover is treated by the game as a special hopper - if a machine needs to offload an item it will move it into the Mass Storage system. Additionally, if a machine ajacent to it requests a material, it can act as a chest and pull materials from the storage system and feed them directly into the machine.
The power draw is similar to a normal Matter Mover, so the power provided to the Controller should be scaled accordingly.