[Home](./index.md) > [bitburner](./bitburner.md) > [Hacknet](./bitburner.hacknet.md) > [getRamUpgradeCost](./bitburner.hacknet.getramupgradecost.md) ## Hacknet.getRamUpgradeCost() method Calculate the cost of upgrading hacknet node RAM. **Signature:** ```typescript getRamUpgradeCost(index: number, n?: number): number; ``` ## Parameters

Parameter	Type	Description
index	number	Index/Identifier of Hacknet Node.
n	number	_(Optional)_ Number of times to upgrade RAM. Must be positive. Will be rounded to the nearest integer. Defaults to 1 if not specified.

**Returns:** number Cost of upgrading the specified Hacknet Node's RAM. ## Remarks RAM cost: 0.5 GB Returns the cost of upgrading the RAM of the specified Hacknet Node n times. If an invalid value for n is provided, then this function returns 0. If the specified Hacknet Node already has max RAM, then Infinity is returned.