Thanks a lot for the help, I'm going to measure the dimensions to get the exact models. It's the first time that I had to search for a cap looking the encapsulation, it seemed ridiculously complicated. Is there any trick to identify the manufacturer and the other parameters just with the top printed codes?
Colors,
maybe. (Knowing if a company usually puts their logo on their polymer caps or not can be helpful.)
Black:
Some Nichicon
Some Panasonic
Probably a million normal SMD electrolytics that look like polymers (are we sure the above is not just an "wet" electrolytic?)
Teal-blue:
Nippon-Chemicon (usually has the shield logo, unless cap too small)
Lelon
Red:
FPCAP/Nichicon (usually says FP on it)
APAQ (usually has "C" with dot logo)
Magenta red:
X-CON (typeface uses rather thin-lined lettering)
Purple:
Panasonic
Unicon
Dark blue:
KEMET (usually has big "K" on it)
CapXon (usually has "CapXon written on it)
For your case, my guess is that the teal-blue one is Nippon Chemicon PXE. They usually start with slightly larger letter to denote series. "E" in this case for PXE