Champion Power Equipment 50 Amp Manual Transfer Switch with 30 ft Power Cord and Weather-Resistant Power Inlet Box 201193 from Champion Power Equipment - Acme Tools
DuroMax 50-Amp 15-Foot 6-Gauge 14-50 CS6364 Heavy Duty Home Power Backup Generator Cord in the Generator Accessories department at Lowes.com
RV Dual 30 Amp Plug to 50 Amp Generator Y Adapter - RecPro
Nature's Generator - 50Ft Solar Panel Cable
Amazon.com: Rophor 50 Amp Generator Power Inlet Box, NEMA SS2-50P for 3 Prong Generator Cord, 125/250 Volt, 12500 Watts, Weatherproof, Outdoor Use, ETL Listed : Patio, Lawn & Garden
Generator Power Cord, 50-Amp 125/250-Volt, NEMA 14-50P Generator Plug to CS-6364 Locking Connector (15', 25', 50') | GenInterlock