[Home](./index.md) > [bitburner](./bitburner.md) > [NS](./bitburner.ns.md) > [getPurchasedServerUpgradeCost](./bitburner.ns.getpurchasedserverupgradecost.md) ## NS.getPurchasedServerUpgradeCost() method Get cost of upgrading a purchased server to the given ram. Signature: ```typescript getPurchasedServerUpgradeCost(hostname: string, ram: number): number; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | hostname | string | Hostname of the server to upgrade. | | ram | number | Amount of RAM of the purchased server, in GB. Must be a power of 2 (2, 4, 8, 16, etc.). Maximum value of 1048576 (2^20). | Returns: number The price to upgrade. ## Remarks RAM cost: 0.1 GB