Listing is for a NEW StarTech 2-Port Wall Mountable USB to Serial Adapter Hub with COM Retention. New old Stock. please review the picture for any information that may be missing from this listing.  If you have any questions let us know and thank you for looking. 

Please note:  This unit has optional external power port that is not included in the kit.  it is not required for use of the device as it is powered from USB.