Tender For supply of wireless adsl 4 port modem with following specification: i) 802 .11b/g/n/ wireless and ethernetconnectivity, ii) spi & nature fire walls, iii) plug & play instantly, iv) wireless security with wp a2 & v) wireless connectivity. make:- d-link, zyxel,tp-link or better [ warranty period: 30 months after t he date of delivery ]