micro usb cable with switch

Most OTG hub cables offer two positions: 'Charge' (routes external power to charge the phone) and 'OTG' (connects the phone as host so it can access USB devices). Some cables require the switch to 'Charge' when you want to both charge the phone and access external storage simultaneously.

The descriptions note 20 AWG conductors for power (faster charging) and 30 AWG conductors for the data lines.

An OTG hub lets the phone access USB peripherals such as USB flash drives (U-disks), mice, keyboards, gamepads, printers and card readers.

The OTG hub described includes three USB Type‑A ports for peripherals plus a separate USB power input to connect the original charger and supply external power.

Set the hub's switch to the 'Charge' position when you want both OTG access and charging. In that position the phone can read the U disk while drawing power from the hub's external charger.