7dB Sierra Wireless AT&T Shockwave USB Modem Antenna w/OEM SMK TS-9 Advanced 7dB (9dBi Gain) Dual-Booster Module Multi-Band Technology Delivers Maximum Reception AMPS EDGE GSM GPRS 3G UMTS CDMA TDMA - Digital & Analog (800 ~ 900 MHz / 1800 ~ 1990 MHz) Stainless Steel Construction Assures Superior Durability - For Outside & Inside Use Commercial Grade (3" Diameter) Magnet w/Poly Boot Provides Non-Abrasive, Secure Antenna Mounting Includes - 12ft RG58U Antenna Coax Cable & 18" OEM SMK TS-9 Adapter Cable For Sierra Wireless