Edimax Technology EW-7722In - Manual (Page 13)

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CHAPTER II: Driver Installation and Configuration
2-1 Network Card Installation
Please follow the following instructions to install your new wireless
network card:
1. SWITCH THE COMPUTER OFF, remove the cover and insert the
wireless network card into an empty PCI slot of your computer and
then replace the cover.
2. Install the antenna on the wireless network card, and make sure the
antenna is securely installed. To improve radio reception, please adjust
antenna to the proper position.