Check the listing for details. Midtronics PSC-550S KIT Fully Automatic 12V 55A Regulated DC Power Supply and Ca. Condition: Used. Listed at 799.85 USD. This Midtronics power supply has a couple uses on it for a short period, only 1-2 hours. Almost no use, considering how reliable these are and what they are designed for. It is essentially in new condition. Please message if there are any question’s. Shipping will UPS with tracking or USPS with tracking with insurance. The Midtronics PSC-550S KIT is a fully automatic 12V 55A regulated DC power supply designed for providing reliable and consistent power to automotive or industrial systems. The product includes a high-quality Midtronics brand power supply equipped with the necessary components to ensure optimal performance. With a focus on efficiency and precision, this kit is suitable for various applications requiring a stable and dependable power source.