Note: This Tray is for 3.5" HDD. Please check pictures for more details.
The same Thinkserver server type can have two different sizes of the drive bay. Your server has to have 3.5 inches Hot-Plug Drive Bay. This 3.5 inch Drive caddy supports 3.5-inch hard drives and with a 2.5-inch converter also 2.5-inch hard drives. Check that your Thinkserver Server or Drive Array is listed and supported.