It looks like Walterfootball had him listed as a CB/S:
Ifeatu Melifonwu, CB/S, Syracuse
Height: 6-3. Weight: 213.
Projected 40 Time: 4.55.
Projected Round (2021): 3-4.
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4/24/21: If Melifonwu’s name probably sounds familiar, it is because his older brother Obi Melifonwu was a second-round pick of the Raiders in the 2017 NFL Draft. Ifeatu Melifonwu had a solid 2020 season, recording 55 tackles with one sack, one interception and eight passes defended. It was a big jump from his previous seasons of play, but his 2020 season was good enough to earn him a Senior Bowl invitation.
Like his brother, Melinfonwu has a good skill set but is not a natural player. Obi Melifonwu was a bust in the NFL in part because of bad influences, so it will be interesting to see if his younger brother can avoid those mistakes.