USB Power Cable to Male Adapter Jack 5.5×2.1mm 5V to 12V

From the shop's description

USB Power Cable to Male Adapter Jack 5.5×2.1mm 5V to 12V The USB 5V to 12V DC Step-Up Power Cable is an essential accessory for mobile power needs. It features a standard USB Type-A male connector on one end and a universal 5.5mm DC barrel jack on the other. Whether you are dealing with a power outage or need a portable setup for your electronics, this cable provides a stable and regulated 12V output. Features Integrated Boost IC Plug-and-Play Universal Compatibility Built-in Protection Highly Portable Specifications Feature Details Input Voltage 5V DC (USB Type-A Male) Output Voltage 12V DC Max Output Current 0.8A – 1A (Depends on USB source capacity) Efficiency ~85% Conversion Rate DC Plug Size Outer Diameter: 5.5mm / Inner Diameter: 2.1mm Polarity Center Positive (+) Cable Length 1 Meter Applications Networking Surveillance Lighting Small Electronics Field Testing Package Content 1 x USB Power Cable to Male Adapter Jack 5.5×2.1mm 5V to 12V