Black 12/24V Dual USB 4.8A socket mount charger with intelligent device recognition maximizes charge rate for phones, tablets, or other mobile devices Internal filtering for reduced electronic interference Conformal coated circuit board for the harsh marine environment Protective dust cap keeps debris and moisture out Maximum output current: 4.8A DC (total), input voltage range: 9V-32V DC, output voltage: 5V DC+/- 5%