[Home](./index.md) > [bitburner](./bitburner.md) > [Sleeve](./bitburner.sleeve.md) > [getMemoryUpgradeCost](./bitburner.sleeve.getmemoryupgradecost.md) ## Sleeve.getMemoryUpgradeCost() method Get the cost of memory upgrades. **Signature:** ```typescript getMemoryUpgradeCost(sleeveNumber: number, amount: number): number; ``` ## Parameters

Parameter	Type	Description
sleeveNumber	number	Index of the sleeve.
amount	number	Number of upgrades. Must be a positive integer.

**Returns:** number Cost of the upgrades. Return Infinity if the current memory plus the amount of upgrades is greater than 100. ## Remarks RAM cost: 4 GB