This is NOT a data blocker, see PortaPow's other products if that is what you need This is a USB-A male to female adaptor which has the D+, D- and 0V (GND) connected but the 5V disconnected, so power cannot pass through. Useful for specialist applications such as 3D Printers and Raspberry Pi where providing power results in undesirable effects Note a power blocker is not compatible with smartphones, tablets and many other devices. Please read the reviews to see situations where it does and does not work Supports USB 2.0 Data Transfer
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