Many companies produce cases specifically designed for particular models like the Nord or the Roland, or you can check out models produced by companies specializing in case manufacturing like Soundsation. Always check the internal dimensions of the cases you want to buy and compare them with those of your instrument to ensure it is the right fit for your needs.
To transport a digital piano or a keyboard, it is necessary to equip yourself with a case or a bag that meets your needs. A bag, in addition to protecting the instrument during movements and transports, allows for a better grip, is also functional thanks to additional pockets that allow you to carry transformers, cables, and books, and is also useful for storing the instrument at home to keep it away from dust and humidity.
There are various types of bags that differ in rigidity, weight, and price. In fact, the market offers light bags, especially for smaller-sized keyboards, which do not offer much protection against impacts, and progressively more padded bags up to hard cases, which add weight to your transports but offer great protection against accidental impacts.