The Latitude 14 7404 has a better Wi-Fi standard than most portable PCs that have been available for a similar time to it. This notebook PC has an 802.11n WiFi standard, whereas most laptops that are a similar age to it have an 802.11b WiFi standard. This portable PC also have an 802.11a and 802.11g WiFi standard.
An 802.11n WiFi standard is in fact the best Wi-Fi standard across all similar spec laptops that are a comparable age to the Latitude 14 7404.
An 802.11a WiFi standard is the worst Wi-Fi standard across similar types of portable PC.