多人同時wifi
ubiquiti
https://www.ubnt.com/unifi/unifi-ap/
http://www.osslab.org.tw/Hardware/Router/UniFi_AP_solution
http://goods.ruten.com.tw/item/qa?21408161381410#qna
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ruckus wireless
http://www.informationsecurity.com.tw/article/article_detail.aspx?aid=7532