Transport device for a transport of at least one product (12a; 12b), of at least one product group and/or of at least one product stack, in particular for a feeding to a packaging process of a packaging machine, with at least one conveying unit (16a; 16b), with at least one guiding unit (18a; 18b), which is in particular realized as a closed loop and on which a plurality of conveying elements (20a, 22a, 24a, 26a; 20b, 22b, 24b, 26b) are arranged which are drivable independently from one another in a manner regulated in terms of speed and/or position, and with at least one vacuum unit (28a; 28b) for generating a negative pressure at the conveying elements (20a, 22a, 24a, 26a; 20b, 22b, 24b, 26b) for the purpose of holding at least one product (12a; 12b), at least one product group and/or at least one product stack at the conveying elements (20a, 22a, 24a, 26a; 20b, 22b, 24b, 26b), the vacuum unit (28a; 28b) comprising at least one negative-pressure switching unit (30a, 32a, 34a, 36a; 30b, 32b, 34b, 36b) for switching a generation of negative pressure on at least one of the conveying elements (20a, 22a, 24a, 26a; 20b, 22b, 24b, 26b), wherein the negative-pressure switching unit (30a, 32a, 34a, 36a; 30b, 32b, 34b, 36b) is arranged at the at least one of the conveying elements (20a, 22a, 24a, 26a; 20b, 22b, 24b, 26b) and is movable along the guiding unit (18a; 18b) together with the at least one conveying element (20a, 22a, 24a, 26a; 20b, 22b, 24b, 26b), wherein the vacuum unit (28a; 28b) comprises at least one flat element (38a; 38b), in particular a flexible wrap-around element, which - at least for at least partially opening at least one negative-pressure opening (40a, 42a, 44a; 40b, 42b, 44b) of the vacuum unit (28a; 28b) - acts together with the negative-pressure switching unit (30a, 32a, 34a, 36a; 30b, 32b, 34b, 36b) depending on a position of the at least one conveying element (20a, 22a, 24a, 26a; 20b, 22b, 24b, 26b), characterised in that the flat element (38a; 38b) at least partially wraps around the guiding unit (18a; 18b) in a region of the guiding unit (18a; 18b) in which the at least one negative-pressure opening (40a, 42a, 44a; 40b, 42b, 44b) is arranged on the guiding unit (18a; 18b). with at least one conveying unit (16a; 16b), with at least one guiding unit (18a; 18b), which is in particular realized as a closed loop and on which a plurality of conveying elements (20a, 22a, 24a, 26a; 20b, 22b, 24b, 26b) are arranged which are drivable independently from one another in a manner regulated in terms of speed and/or position, and with at least one vacuum unit (28a; 28b) for generating a negative pressure at the conveying elements (20a, 22a, 24a, 26a; 20b, 22b, 24b, 26b) for the purpose of holding at least one product (12a; 12b), at least one product group and/or at least one product stack at the conveying elements (20a, 22a, 24a, 26a; 20b, 22b, 24b, 26b), the vacuum unit (28a; 28b) comprising at least one negative-pressure switching unit (30a, 32a, 34a, 36a; 30b, 32b, 34b, 36b) for switching a generation of negative pressure on at least one of the conveying elements (20a, 22a, 24a, 26a; 20b, 22b, 24b, 26b), wherein the negative-pressure switching unit (30a, 32a, 34a, 36a; 30b, 32b, 34b, 36b) is arranged at the at least one of the conveying elements (20a, 22a, 24a, 26a; 20b, 22b, 24b, 26b) and is movable along the guiding unit (18a; 18b) together with the at least one conveying element (20a, 22a, 24a, 26a; 20b, 22b, 24b, 26b), wherein the vacuum unit (28a; 28b) comprises at least one flat element (38a; 38b), in particular a flexible wrap-around element, which - at least for at least partially opening at least one negative-pressure opening (40a, 42a, 44a; 40b, 42b, 44b) of the vacuum unit (28a; 28b) - acts together with the negative-pressure switching unit (30a, 32a, 34a, 36a; 30b, 32b, 34b, 36b) depending on a position of the at least one conveying element (20a, 22a, 24a, 26a; 20b, 22b, 24b, 26b), characterised in that the flat element (38a; 38b) at least partially wraps around the guiding unit (18a; 18b) in a region of the guiding unit (18a; 18b) in which the at least one negative-pressure opening (40a, 42a, 44a; 40b, 42b, 44b) is arranged on the guiding unit (18a; 18b).