The MFSU, also known as MFS Unit or Multi-Functional Storage Unit, is a third tier device for storing IndustrialCraft 2 EU power. If you're using the GregTech mod, such as with the Mindcrack or Ultimate packs, then the next tier of energy storage is the Adjustable Energy Storage Unit (AESU) or the multiblock Lapotronic Energy Storage Unit (LESU).
1. Advanced Machine Block
Total (GregTech for advanced alloys):
- 38 lapis lazuli
- 10 diamonds (6 Diamonds can be replaced with Sapphires and 4 with rubys if you have GregTech installed)
- 110 redstone
- 31 refined iron ingots
- 4 iron ingots
- 16 coal dust
Here is a video for intermediate and advanced players that explains some of the more advanced concepts of IndustrialCraft power.