| 3.5 inch Hard Drive Caddy - Compatible for Dell PowerEdge Servers - 14th Gen R440 R540 R640 R740 R740xd2 R6415 README FIRST: The same PowerEdge server type can have two different sizes of the drive bay. Your server HAS TO HAVE bigger 4.2 inches Hot-Plug Drive Bay. This 3.5-inch Drive caddy supports 3.5-inch hard drives. Check that your PowerEdge Server or Drive... more | | $42.31 FREE shipping go to store |