Multitech GPRS Router, US Frequency w o ACCESSORIE (MTCBA-G2-EN2)
one RS232 one LAN YF320-G Series industrial gprs router for ATM KIOSK - AliExpress
Amazon.com: HF HF-8104 Ethernet WiFi to Server Device 4G 3G GPRS 4 Port RJ45 for Linux System Industrial 4G Router HF8104 Industrial 4G Wireless Router : Electronics