Excellent Character 1.Auto Handle Actuated Release Mechanism- With the SNT"Jump off connector" design, when you Pull up the handle, the tray is easily separated from the frame automatically. 2. Power Control Keylock System 3.Compatible & Interchangeable with SNT Racks- The trays & frames of SNT series are all compatible & exchangeable with each other. With a tray in hand, you can put it in any SNT Rack frames.     3. Changeable front panet...support ZIP,MO... 4.DIS SW...Easy master/slave jumper setting switch