The Genuine HP USB-C Essential Power Bank 3TB55AA 3TB55UT is a sleek black power bank designed specifically for HP laptops. This portable charger is compatible with HP products and provides extra power on-the-go, making it convenient for users who need a reliable power source while working or traveling. The power bank is designed to be a dependable accessory for HP users, ensuring that their devices are always powered up and ready to use. Lightly used for a few months then kept in safe storage.