This Ericsson SFP module is a high-quality product designed for reliable and efficient network connectivity. With a transmission distance of 0.55KM, it is perfect for medium-sized networks. The module is compatible with SFP ports and can be easily installed in various devices. Its brand name, Ericsson, ensures that it is a top-notch product that will deliver exceptional performance. The model number SU57AD and part number 1400421-0010 further confirm its authenticity and genuineness.