The WSDU-2X4R from Becker Nachrichtentechnik GmbH is a Multicoupler with Frequency 0.1 MHz to 5 GHz, Gain 1.5 to 5 dB, Isolation 55 to 65 dB (Reverse Isolation), 30 to 48 dB (Output Isolation), Noise Figure 8 to 9.5 dB, INPUT POWER 15 dBm. Tags: Rack Mount. More details for WSDU-2X4R can be seen below.