This product is either discontinued or we cannot get that from suppliers.
Garmin 010-01858-42 DZL 580 LMT-S, Display 5.0” (12.7cm) diagonal 480 x 272 pixels Color TFT, WQVGA, Battery rechargeable lithium-ion up to 2 hours, microSD card (not included), Truck & Trailer Services directory, Truck-specific speed limits , Sunrise/sunset times - Trucking.
The dezl 580 LMT-S truck navigator is designed for the professional trucker with customized truck routing with predictive route warnings.