S-board 840 Design Numeric BNES840DNUM Features:Design fits: with the S-board 840 compact keyboard Including: hand-held calculator functionality Smart: extendable USB cable Quality: comfortable typing (shear mechanism instead of membranes) Unique: 26 different keys on one number pad Connection: USB Specifications:Width: 95 mm Height: 21.5 mm Depth: 165 mm Weight: 120 gr