Picking a suitable interface should be done according to your personal needs. Ideally you shouldn't purchase interfaces, included in a bundle or not, that you don't need. On the other hand it may make sense to allow for future expansion options. Other criteria to consider are the quality of the converter, the latency and the drivers. Often you can save a little money if the desired card is included with a software bundle, or if it is attainable as a cost effective upgrade to professional software.
All devices in our online catalogue are covered by the 30-Day Money-Back Guarantee and the 3-Year Thomann Guarantee unless otherwise stated, no if's and's or but's. You can therefore test an item of your choice without worry, sending it back in the previously stated time-frame in exchange for a new product or for a full refund.