IOGear Wireless USB Hub and Adapter Kit GUWH204KIT - Manual (Page 33)

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Antenna Type Omni-Directional, external whip antenna for both
Hub and Host Adapter
Reset Switch Yes
LEDs
ACT (Activity) LED on Host adapter to show Data/Activity
Host Status On the Hub to show Hub / Host PC connect
Association LED to show Association / Security
Power Adapter 5V, 2.5A (110 - 240VAC)