Instruct: Classify Amazon reviews into positive or negative sentiment
Query: 5 Volt Only - won't work with WRT54G v.2 or WRT54G"S"

The newer Linksys products including the WRT54G v.2 use a 12 volt power supply and will not work with the WAPPOE. Linksys lists on the product page for the WAPPOE that it will work with the WRT54G but in reality it will only work with the v.1 and v.1.1 that use a 5 volt power supply.