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## Hacknet.getRamUpgradeCost() method
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 is already at max level, then Infinity is returned.
Signature:
```typescript
getRamUpgradeCost(index: number, n: number): number;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| index | number | Index/Identifier of Hacknet Node. |
| n | number | Number of times to upgrade RAM. Must be positive. Rounded to nearest integer. |
Returns:
number
Cost of upgrading the specified Hacknet Node's ram.
## Remarks
RAM cost: 0 GB