<!-- Do not edit this file. It is automatically generated by API Documenter. --> [Home](./index.md) > [bitburner](./bitburner.md) > [NS](./bitburner.ns.md) > [writePort](./bitburner.ns.writeport.md) ## NS.writePort() method Write data to a port. <b>Signature:</b> ```typescript writePort(port: number, data: string | number): Promise<any>; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | port | number | | | data | string \| number | | <b>Returns:</b> Promise<any> The data popped off the queue if it was full. ## Remarks RAM cost: 0 GB Write data to that netscript port.