The Arsenal left-back penned a three-year deal at Loftus Road to become the third signing of the Tony Fernandes era, following deals for Newcastle midfielder Joey Barton and Aston Villa defender Luke Young.

Traore spent time on loan with Serie A outfit Juventus last season and has made just one Barclays Premier League appearance for the Gunners in the last 15 months, in Sunday's 8-2 defeat to Manchester United.

"When I talked to Neil Warnock he was very passionate about what I could bring to the club,'' the Frenchman told the club's official website, www.qpr.co.uk.

"He was very motivated about playing me week in, week out, and that's what I need at this stage of my career.

"I've not been able to prove and show what I'm all about because I've been at two big, big clubs like Juventus and Arsenal.

"I'm looking forward to coming here and playing regular football.

"The ambition of the new owners and the calibre of players they are signing is something that really attracted me to the club."

Traore will wear the number 13 jersey at the west London club and Warnock was delighted to secure his signature.

"Armand has been my number one defensive target for a while now," he said.

"I've been speaking to Arsene (Wenger) for a couple of weeks.

"He's a young and exciting lad who I think can only get better playing for a side like ourselves on a regular basis. He needs games and he'll get that here.

"Nobody has seen the best of him yet, but over the next couple of years I'm confident he'll show the quality that I clearly believe he has.

"He'll be a great outlet for us down that left hand side.

"He's got all the attributes you need to be a top, top defender."

Despite bringing in Young, Danny Gabbidon, Bruno Perone and now Traore this summer, Warnock is still on the hunt to boost his defence.

Press Association Sport understands the QPR boss is hoping to complete a deal for Sunderland defender Anton Ferdinand.

The 26-year-old has been regularly linked with a move away from the Stadium of Light this summer and could now be set for a move to west London.

The younger brother of England international Rio could be the latest recruit, while reports suggest that Warnock is also looking to tie up a deal for Manchester City winger Shaun Wright-Phillips.

QPR have also been boosted by the return of defender Peter Ramage from a one-month loan spell at Crystal Palace, while experienced midfielder Shaun Derry extended his contract at Loftus Road this morning.

The 33-year-old played an integral role as Rangers won the npower Championship last season, which ended the club's 15-year absence from the top flight.

Warnock brought Derry to the club last summer from former club Crystal Palace and has rewarded the midfielder with a one-year contract extension.

"Tony has been so impressed with Shaun since his arrival at the club and this is just a show of faith for what he does for the club,'' he said.

"He's got a few ideas about going into coaching when he finishes playing and at a club like ours, where the new owners have got so many long-term plans, there will undoubtedly be a role for him.

"He's still got a massive impact to make as a player here first and foremost and that's what I want him to focus on at the moment, but I think he can start having an input off the field too.''