"He has many samples now."
Translation:Tá a lán samplaí aige anois.
There is actually a genitive phrase here. a lán samplaí is essentially "its full(ness) of samples".
You can see that it's a genitive construction in cases like chaill sé a lán fola - "he lost a lot of blood", but in the case of samplaí, the genitive plural is the same as the nominative plural.