The Asus C300MA has an 802.11n WiFi standard which is better than most laptops of this spec and age. Most similar spec laptops that were released more than two years ago have an 802.11g WiFi standard. This notebook PC also have an 802.11a and 802.11b WiFi standard.
This portable PC's Wi-Fi standard (802.11n) is in fact the best Wi-Fi standard across all notebook PCs of a comparable age and spec to the C300MA.
An 802.11a WiFi standard is the worst Wi-Fi standard amongst comparable types of portable PC.