Standardizing antennas across a mixed Teltonika estate is easier when one part covers both LTE and 5G hardware. The Teltonika PR1US540 is a 5G mobile SMA antenna designed to screw directly onto the cellular antenna ports of Teltonika routers, from compact LTE units up to the 5G RUTX50 and the RUTXR1 rack-mount router. Teltonika's compatibility list for this antenna covers the RUT200, RUT240, RUT241, RUT360, RUT950, RUT951, RUT955, RUT956, RUTX09, RUTX10, RUTX11, RUTX12, RUTX14, RUTX50, RUTXR1 and TCR100. Because it is specified for 5G operation, it also serves the wider frequency ranges 5G NR uses while remaining backward-suited to 4G LTE routers — one spare in the van instead of separate LTE and 5G antenna stock. The direct-attach SMA design means installation is a ten-second job: thread it onto the port and orient the element. There is no coax to route, no bracket to drill and no connector to weatherproof, which suits indoor deployments such as branch routers, backup WAN units, signage controllers and lab benches. As with any direct-attach antenna, results depend on where the router itself sits; for routers buried in metal cabinets or basements, plan on a cabled external antenna instead. This is a genuine Teltonika Networks accessory, MPN PR1US540, UPC 4779051840632, with a shipping weight of approximately 0.07 lb.