This AC WORKS® [EVL1520MS-018] is a heavy-duty 1.5 -foot adapter. The adapter is a NEMA L15-30P to NEMA 14-50R (Tesla). The NEMA L15-20P is a 3-phase, 20 Amp, 250 Volt, 4-prong locking EV charging plug. The NEMA 14-50R is a 50 Amp, 125/250 Volt female connector. The cable is an STW 10/4, heavy-duty 600 Volt jacket. This product comes with a limited 5-year warranty.