Not a whole lot is known about Adams, but 49ers Coach Mike Singletary and Director of Player Personnel Trent Baalke have both described him as a corner who specializes in bump-and-run coverage and who is a big-time hitter for a guy with a 5'11, 192 pound frame.
The knock on Adams, besides playing at a small school, coming into the draft was that he isn't as comfortable or smooth in zone coverage, due mainly to not being very fluid in his hips, but the rookie insisted he's plenty experienced with zone thanks to having played safety in college as well.
Adams knows that he's facing long odds to make the team, what with so much other competition for backup corner jobs including free-agent signings Karl Paymah and William James, but getting his deal done and out of the way certainly makes a good first impression.
As far as his play on the field is concerned, Adams showed quick hands and good concentration when he plucked a ball out of midair, intercepting Alex Smith during a 7-on-7 drill after his high pass bounced off Ted Ginn's hands. If he can do that again for, oh, 50 or so more practices, the kid just might stick.