The product is a rear SAM fuse box relay control module for Mercedes W211 E320 E350 models from 2003 to 2009. It is a Factory/OEM brand with a durable plastic construction and measures 11 inches in length, 7 inches in height, and 3 inches in width. The fuse box has a mini blade fuse type and various amperage capacities, including 15A, 40A, and 20A. It is a genuine part from Germany with a manufacturer warranty, and it is an interchange part number for the specified Mercedes models.