Linksys WUSB54AG User Manual page 48

Wireless A/G USB Network Adapter
Operating Temp. 32ºF to 104ºF (0ºC to 40ºC)
Storage Temp. -40ºF to 158ºF (0ºC to 70ºC)
Operating Humidity 10% to 85%, Non-Condensing
Storage Humidity 5% to 90%, Non-Condensing
Appendix E: Specifications 42