cablu adaptor, mama usb la tata usb 3m. cod:xo-nb219 product parameters model: xo-nb219/nb220 material: aluminum alloy name: color : usb2.0/3.0 extension cord gun grey + black interface: line length: usb 2m/3m connector material: package dimensions: 85a tpe gum 100 x 165 x 23mm core* nb:219 (43/0.08ts+250d)*2c+(16/0.08ts+250d)*2c nb:220 (7/0.1 tc*1 pr+am)*2(fpe)+7/0.1 tc*1 pr+7/0.20tc*2c function: nb:219—usb 2.0 transfer speed 480mbp nb:220—usb 3.0 transfer speed 5gb