8dB Novatel Verizon 551L USB551 MC551 LTE USB Modem External Antenna Advanced 8dB (10dBi Gain) Dual-Booster Module Multi-Band Technology Delivers Maximum Reception 3G 4G LTE AMPS GSM GPRS UMTS CDMA - Digital & Analog (700 ~ 900 MHz / 1800 ~ 1990 MHz / 2100 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" Adapter Cable For Novatel