Sony VAIO Network Port Replicator for GRX Series Notebooks (PCGA-PRGX1) Easily expand connectivity to your GRT notebook Ports include DC in, 2 USB, RJ-45 Ethernet, VGA output, PS/2 keyboard and mouse, serial, parallel, S-video out, Line-in (RCA pin), Line-out (RCA pin), Video out (RCA pin), docking CN Through Audio Input (Line-in), you can burn music CDs from analog source using Sony SonicState Mastering Studio software bundled on selected models Dimensions (W x H x D): 14 3/4" x 1 1/2" x 4 3/4" NOT backward compatible with GRS, GRV, GRX and GRZ notebooks