Connect a compatible router’s cellular antenna interface with the Teltonika PR1CS450 straight compact mobile SMA antenna. Its 700–2,700 MHz frequency range covers a broad span of mobile frequencies, while the specified gain is 5.0 dBi. Linear vertical polarisation, 50 Ω impedance and a VSWR of 1.8 complete the RF specification. These characteristics provide concrete selection criteria when matching the antenna to a cellular modem’s operating frequencies and antenna interface. Frequency coverage must match the bands used by the modem and mobile network; connector fit alone does not establish that match. Attach the straight SMA male connector to a compatible mobile antenna port. The compact body measures 54.0 mm long and 10.5 mm across, making its physical envelope relevant when a router sits near a cabinet wall, another connector or adjacent equipment. The straight connector places the antenna along the connector axis, so allow space in that direction when arranging the router. Its vertical polarisation also makes antenna orientation a practical consideration during installation. This format suits installations where the antenna remains directly beside the router. Compatible Teltonika router models include RUT230, RUT240, RUT900, RUT950, RUT955 and RUTX09. Within the antenna options for those routers, this version provides a specific combination of straight SMA attachment, compact dimensions and 700–2,700 MHz coverage. Select it when those mechanical and RF characteristics match the installation. For an existing router, check the mobile antenna connection and available clearance together with the required cellular frequencies.