DELL 3120 CLAMSHELL CASE FOR LATITUDE MODELS Gumdrop's DropTech Dell Latitude 3120 Clamshell Case is a shock-resistant combination of thick silicone bumper skin and rigid polycarbonate casing for Dell's newest Latitude model. This unique DropTech case features transparent panels on the top and bottom of the case, allowing you to personalize and identify protected Latitude models by asset tag, school logo, photos and more!