DC Connector is 0.6mm inner (Standard type 2.0/0.6mm). USB Connector is Type A. Inside the DC connector is positive (Standard type).
1.5M USB to DC 5V Power Cable with 13 Interchangeable Connectors for Versatil...
NFHK 10Gbps USB-C to USB 3.0 Female OTG & DC 5V Power Supply for Tablet Phone, NF-UC-035-AC
USB to DC Power Cable 1.3mm x 3.5mm 5v 2.1A 2100mA 2m
USB-A to 3.5-5.5mm Barrel Jack Male DC 5V Power Charger Plug Adapter Cable Lead
USB to DC Power Cable 5V 2A 5.5mm x 2.1mm / 1.3mm x 3.5mm Barrel Jack Male Cable
USB to DC Tablet or Laptop Power Cable 1.3mm x 3.5mm 5v 2.1A 2000mA 1m Sky Puck