[Home](./index.md) > [bitburner](./bitburner.md) > [Singularity](./bitburner.singularity.md) > [getUpgradeHomeRamCost](./bitburner.singularity.getupgradehomeramcost.md) ## Singularity.getUpgradeHomeRamCost() method If you are not in BitNode-4, then you must have Level 2 of Source-File 4 in order to use this function and the RAM cost is doubled. Returns the cost of upgrading the player’s home computer RAM. Signature: ```typescript getUpgradeHomeRamCost(): number; ``` Returns: number Cost of upgrading the player’s home computer RAM. ## Remarks Singularity - Level 2