Yes. Roland offers the CB-404, an official carrying case for the SP-404 series. The CB-404 can accommodate the SP-404MK2 unit along with accessories such as cables and an AC adaptor.
CB‑404 comes with knobs that are designed exclusively for the SP‑404MK2. These knobs are not compatible with other SP‑404 series models and are not sold separately.
We also offer larger carrying bags, such as the CB‑RU10, for users who want to carry the SP‑404 series together with other gear or accessories.