The DM-4310F-DC-4G from Link Microtek is a Between Series RF Adapter with PIM -160 dBc, Frequency DC to 4 GHz, Temperature Operating: -40 to 80 Degree C, Storage: -40 to 150 Degree C, Voltage Rating 1000 V. More details for DM-4310F-DC-4G can be seen below.