Hi all;

Just got my first 2 in 1, Inspiron 7420 14" laptop.  According to the compatibility table, both the 579X and 5122W pen will work.  The 579X is about $80 and the 5122W is about $40.  I'm having a hard time determining relevant differences.  I note on the compatibility document that the 579X has "microsoft pen protocol" and not sure if that necessarily means the 5122W doesn't as I'm not familiar with that term.  Any input appreciated on the choice.  FYI, this will be for a college student who probably doesn't need advanced art tools etc. if that matters - simple note taking etc. on the tablet.