A data storage device carrier includes a case and an assembly mounted on the case. One side of the case defines a hole. The assembly includes a cover and a shield secured on the cover. The shield includes an elastic piece with a protrusion formed thereon configured to insert in the hole of the case to secure the assembly onto the case. The cover includes a teeterboard-type actuating member with a middle portion of the actuating member connected to the cover. An inner portion of the actuating member is connected with the elastic piece, and an outer portion of the actuating member forms an operating portion thereon configured to move the inner portion of the actuating member in a direction to drive the protrusion of the elastic piece to withdraw from the hole by operation of the operating portion in an opposite direction.