Panasonic KX-DT590-W 48 key DSS console for use with the KX-DT500 series phones.48 KeysConnection Serial I/F to KX-DT546 and/or KX-DT543 digital terminalsInstallation Desktop (1 position) Wall MountDimension High: 137 x 161 x 135mm Low: 137 x 183 x 114mm..