StarTech.com 3ft (91cm) USB to Type M Barrel Cable, 5.5mm 3 ft/90 cm
SPECS: 3ft (91cm); USB-A; Type M coaxial power (Barrel Power Connector OD:5.50, ID: 2.10); Jacket: PVC; Outer Diam (OD): 4.5mm; 5V at up to 0.9A supplied by a USB port; Aluminum-mylar foil with braided shielding.