Marathon Flight Road Case MA-RMXLTBLK Black Series - Case To Hold 1 x Hercules RMX Digital Music Controller with Laptop Shelf Exterior Dimensions (closed lid): 19.25 x 16.5 x 8.75 Inches. Interior Dimensions (RMX space): 13.75 x 14.375 x 2 Inches. Interior Dimensions (overall): 13.75 x 14.375 x 4 Inches. Laptop area: 17 x 11 Inches