DS9490B adapters equivalent, usb to 1-wire/ibutton adapters.
* High-Speed 12Mbps Universal Serial Bus (USB) Interface
* Supports Standard and Overdrive 1-Wire® Communication
* Slew-Rate-Controlled 1-Wire Timing and Acti.
* Software Authorization—Protection against software piracy by tying software operation to the presence of iButton h.
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