It’s “18 Å”, not “18A” (which would be 18 Amperes). I would think that Intel would be keen to not be confused with either Ampere Computing or Nvidia’s Ampere GPU architecture.
Å = opt (AKA alt) + shift + a
å∫ç∂´ƒ©˙ˆ∆˚¬µ˜øπœ®ß†¨√∑≈\Ω
ÅıÇδϩӈÔ˚Ò˜Ø∏Œ®Í†¨√∑≈ÁΩ
The same way you know in advance that CTRL+SHIFT+@ gives you Å in Windows?
Both Windows and Mac can display an on-screen keyboard that will display the character that will be output if you press a key along with modifier keys like CTRL or Option.
On my Mac pressing "opt (AKA alt) + shift + a" gives me: Ą - which I much prefer, since it comes from my native language :)