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[Home](./index.md) &gt; [bitburner](./bitburner.md) &gt; [Hacknet](./bitburner.hacknet.md) &gt; [getCacheUpgradeCost](./bitburner.hacknet.getcacheupgradecost.md)

## Hacknet.getCacheUpgradeCost() method

This function is only applicable for Hacknet Servers (the upgraded version of a Hacknet Node).

Returns the cost of upgrading the cache level of the specified Hacknet Server by n.

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.

<b>Signature:</b>

```typescript
getCacheUpgradeCost(index: number, n: number): number;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  index | number | Index/Identifier of Hacknet Node. |
|  n | number | Number of times to upgrade cache. Must be positive. Rounded to nearest integer. |

<b>Returns:</b>

number

Cost of upgrading the specified Hacknet Node's cache.

## Remarks

RAM cost: 0 GB