It's a pretty long trip down memory lane for us to return to ASUS' ultra-thin RT-56U router; last time we saw it was behind plexiglass at CeBIT in March. At long last it's returned to the spotlight, only this time that luminance is provided by the FCC's notorious labs. The dual-band Gigabit Wireless-N device gets just one image -- and given the unflattering angle, we're not quite sure if it's retained that slender figure. The filing is dated October 11 with a 45-day confidentiality agreement and enough references to US sales that we wouldn't be surprised to see it hit