Thank you for viewing. This is a dedicated USB DOCK from SIGMA, allowing for firmware updates and setting changes for camera lenses. It is for SIGMA lenses with the Nikon F-mount type. - Brand: SIGMA - Included items: USB cable, dedicated dock - Color: Black There is no box or instruction manual. Please download the adjustment software from the SIGMA website. It has been used indoors, and I don't think it has been used more than 10 times.