Storage Point (SP) was a deprecated measurement of cargo storage in personal containers and armor. It is primarily used for transporting personal cargo like commodities. Since Alpha 3.15.0, it is replaced by centiSCU (K μSCU) with the introduction of personal inventory.
SP is measured in relation to the Standard Cargo Unit (SCU) where 1 SCU = 1,000,000 SPs, or 1 SP = 1 microSCU (µSCU). For example, the MacFlex Rucksack Core has a storage capacity of 60k SP, which is equivalent to 0.06 SCU.