Maffei (b. 1991) was a 25th round pick by the Pirates in the 2013 June Amateur Draft. He played in the minors from 2013 to 2017, all in the Pirates system. He reached as high as AAA, but didn't crack the majors. Maffei had 277 hits, 5 home runs and a .266 batting average in his minor league career.
I mailed to Maffei on June 8 and got the cards back on June 18, for a 10-day TAT.