Barrel Jack Power Cable to USB Type A Female Adapter 5.5mm/2.1mm 5V Connector
New with no retail packaging.
Barrel Jack to USB Type A Female Power Cable Adapter for Streaming Stick Connectors (Roku): 5.5x2.1mm Female Barrel Jack, USB Type A Female
Use a power supply with a barrel connector to power and charge USB devices. Please note that the adapter does not offer any resistance on the data lines and therefore will not work for charging iPhones, iPads, and other devices that expect resistance on the D+/D- lines.
Works fine for Rasberry Pi's, HDMI dongles, and most other USB powered devices.