USB Connector is Type A. DC Connector is 1.3mm inner (Standard type 1.3/3.5mm). Inside the DC connector is positive (Standard type).
StarTech.com 3ft (91cm) USB to Type M Barrel Cable, USB to 5.5mm 5V DC Power Cable, Molded USB to Barrel Jack 5V DC Plug
MOSWAG USB to Audio Jack Adapter 0.65Feet/20cm,External Sound Card Jack Audio
DC 5V Charger Cable USB To Barrel Jack 3.5mm x 1.35 Charging Power Lead Black
USB To DC Jack Power Cable 3m Extra Long For Animated Christmas Ornaments
RGBS USB to Barrel Jack Power Charging Cable Adaptor 5V 1A（DC 2.0 * 06mm,2.5 * 0.7mm, 3.5 * 1.35mm, 4.0mmx1.7mm, 5.5 * 2.1mm f choose) (DC 2.0 * 06mm)
5V~12V USB to Barrel Jack Plug Male DC Power Cable Charger AC Adapter 0.6A/0.8A
