RFDAT0040G6AUSB is an absorptive USB / Ethernet digital control attenuator
with a frequency range of 0.1 to 43.5GHz

Link: https://www.rflambda.com/pdf/usbstepattenuator/RFDAT0040G6AUSB.pdf

Features:

• Ultra Wide Band Operation 0.1-43.5GHz
• USB Controlled and Powered
• 0.5dB LSB Steps to 15.5dB

Typical Applications:

• Wireless Infrastructure
• Military and Aerospace Applications
• Test Instrumentation
• Radar Systems
• 5G Wireless Communications 
• Microwave Radio Systems
• TR Modules 
• Research and Development
• Cellular Base Stations