Locks on 2420 Rack Enclosures

Hi, (I can't find an option to post to the rack forums area), I am looking to confirm, do all the 2420 rack enclosure models all have locks and keys for both the front as well as the back as per below:

http://www.dell.com/ca/business/p/poweredge-2420/pd?refid=server-poweredge-2420&baynote_bnrank=0&baynote_irrank=0&~ck=baynoteSearch&isredir=true