This mod is inspired by Death Chest mod, and also overcomes some of it's limitations.

This mod spawns on death 2 kind of boxes - Black Box and Black Craft Box

Items in inventory, quickbar, amorslot, trash and so on are stored upon death into black box (1 or more depends on your inventory size)
Items from craft queue are stored upon death into black craft box

one box is limited to 100 stacks - there is no deep thought about that, just it's easy to remember number.
if you have more than 100 stacks in inventory all together (which is possible, when you using different kinds of power armor and logistic tech, that expands inventory) it will spawn additional boxes.

• since release of 0.15 (with lootable corpses), this mod is not needed and not developed