The JUNIPER QDD-400G-SR8 is a high-performance transceiver module designed for data centers and high-speed network environments. It supports 400G data rates over multimode fiber (MMF) with a reach of up to 100 meters, making it ideal for short-range data transmission. The module operates within a standard temperature range of 0 to 70 degrees Celsius and features an MPO receptacle for easy connectivity.