802.11agn i 802.11bgn
802.11agn i 802.11bgn
Your laptop supports both a/g/n and b/g/n WiFi cards. The a/g/n typically operates at 5 GHz, while the b/g/n usually works on 2.4 GHz. Since you're unsure which one is better, consider your device's current needs—if speed matters, go with a/g/n; if range or compatibility is more important, stick with b/g/n.
A/G/N handles 5 GHz, whereas B/G/N lacks 802.11b support—very slow and rarely used in 2021, so stick with the 802.11a card. They aren’t that widespread.
It's probably just the "n" component that counts. Many APs don't function in "b" mode, others no longer support "g," and I suspect "a" wasn't commonly used before being merged with "n."