The AD-USB4AR36G95 from Adaura Technologies is a 4 channel, digital programmable attenuator that operates from 0.005 to 6 GHz. The attenuator has an attenuation range from 0 to 95 dB with a step size of 0.25 dB. It provides more than 100 dB of chain to chain isolation and can handle an input power of up to 28 dBm. 

The AD-USB4AR36G95 is USB and Ethernet controlled. The addition of Ethernet allows EASY implementation into the most modern of test setups by allowing network control via HTTP web interface or direct Telnet while the USB port powers the device and allows for serial communication. The four channels can be controlled independently and powered via a single USB port. It is available in a compact module that measures 181.20 x 89.30 x 25.70 mm with SMA female ports and is ideal for cellular, IoT, MIMO, and engineering development and manufacturing test.