The Rams, who are reportedly in the market for a striker in January, have been given relatively small odds at 4/1 to land the former Bristol City attacker ahead of the likes of Brighton (6/1), Norwich (12/1) and Forest (12/1).
The market on Nicky Maynard - club after January transfer window:
Derby County - 4/1
Brighton and Hove Albion - 6/1
Norwich City - 12/1
Nottingham Forest 12/1
Watford - 12/1
Fulham - 16/1
Wigan Athletic - 16/1
Bolton Wanderers - 20/1
Bristol City - 25/1
MK Dons - 25/1
Preston North End - 25/1
Sheffield United - 25/1
The 27-year-old, who was once rated as one of the best in the Championship, has made just three starts for Cardiff this season and was left out of the squad for their match against Rotherham at the weekend.
Since his reported £2.75 million move to Cardiff from West Ham in 2012, he has played just 25 times for the Bluebirds, scoring three, in all competitions. Although, a lengthy injury soon after his move will go down as the large reason it hasn't worked out.
Derby only have three registered centre forwards on their books - Chris Martin, Leon Best and Kwame Thomas - as the other attacking players line up on the wing.
Although recent reports have linked the likes of Luc Castaignos and Tomas Necid with a January move the Rams, the asking price is likely to be high.
Therefore, the East Midland's side could opt for the cheaper option in Maynard if they fail to convince their reported primary targets to move.