Sierra Wireless AirCard 250U USB Modem Clear 4G+ USB S external magnetic antenna & dual port antenna adapter cable 3db 3db Magnetic antenna with 5ft cable Dual port plug antenna adapter cable for Sierra Wireless AirCard 250U USB Modem Clear 4G+ USB S Frequency: 824-896MHz,890~960MHz,1800MHz,1900MHz Gain: 3dBi Cable with RG174/U Cable Length: 5ft Antenna Height: 9 inch