PlasticaStockée361 year ago000the new adata external hard drive does not work, it appears in the finder sidebar but is inaccessibleShow in original language (French)mfgood621 year ago000 Helpful answerIt must be reformatted for Apple devices.Show in original language (German)Comment1 commentPlasticaStockée361 year ago000How do I format adata HV620S on a Mac?Show in original language (French)Comment1 comment