Teltonika PR3PXUS3 US 18 W Power Supply for RUTX08, RUTX09, RUTX10 and RUTX11

Teltonika's RUTX platform stepped up from the classic RUT line in nearly every dimension: Gigabit Ethernet, faster processors, dual-band Wi-Fi on most models, and correspondingly higher power budgets. The PR3PXUS3 is the US-market 18 W supply matched to the single-modem members of that platform — the RUTX08 and RUTX09 wired routers and the RUTX10 and RUTX11 wireless models.

The 18 W figure matters because RUTX routers are exactly the devices people accidentally under-power. A 9 W adapter from a retired RUT240 physically reaches the connector, appears to work at idle, then drops the router during simultaneous Wi-Fi traffic and cellular transmit — an intermittent fault that wastes diagnostic hours. Matching the factory rating per family is the discipline that avoids it, and this is the part that does so for the four listed models.

All the usual replacement scenarios apply: adapters lost in office moves, damaged by cabinet doors, or left behind at decommissioned sites. The RUTX11 in particular serves heavily as a branch failover and primary-connectivity router, so managed-service providers should hold PR3PXUS3 spares in the same drawer as their spare SIMs.

One boundary note: the dual-modem RUTX12 requires the 24 W supplies (PR3P2US3 US or PR315PS3 universal), not this unit. At about 0.76 lb shipping weight, the PR3PXUS3 is an easy stock item that keeps the Gigabit RUTX fleet on stable, factory-specified power.