The bottom right of the faceplate reads 9V DC maxThe bottom right of the faceplate reads 9V DC max. If your faceplate looks similar to this one but reads 12V DC max., this is not the appropriate faceplate. The 12V DC faceplate is sold separately. The tubing required for this faceplate is Medela #8007212 / #87212 and is sold separately. Using any other tubing or tubing not made by Medela will damage the port plug receptacle on the faceplate. Yellow faceplate for the Pump In Style Advanced breast pump (backpack model #57062 or shoulder bag model #57062, or On-The-Go Tote model #57063), and Metro Bag (model #57036) manufactured after Jan 2008. The front side has 5 holes for the On-Off/Min-Max dial for vacuum adjustment, the power cord, the Natural Expression button, and two prongs to attach the tubing.