She is a human computer; she can download information into her self just with the touch of a computer.
Grace has the ability to download computer data in and out of herself, giving her the depiction of a human flash drive.
Grace was one of the electrics loyal to Hatch, but she secretly hated him the whole time she was attending the Elgen Academy. She presumably pretended to be with the Elgen A (to avoid 'Purgatory' (Ian's name for the dungeon level) and B(because it is doubtful that Hatch could find anything violent for her to do with her powers.) When the Electroclan took the Elgen Academy, Grace alluded Hatch and joined them. Near the middle of 'Rise of the Elgen', the Voice requests custody of Grace in exchange for passage to Peru, and Michael obliges.
Grace has been described as shy and quiet, therefore not much is known about her true feelings on general society.
Her only friend appears to be Tessa, as they met some years back at the academy.