"The new Socket Go Wi-Fi 802.11a/b/g SDIO cards, such as the
P320 and P320X models, offer data rates of up to 54Mbps using
2.4GHz and 5GHz spectra, says Socket. Both offer an extended
temperature range of -4 to 185 deg. F (-20 to 85 deg. C). The P320
offers an internal antenna whereas the P320X provides dual
connectors for external antennas, says the company."