This auction is for a 50 ohm switched attenuator box with BNC connections. It is used but in good working order.
Brief spec is :
ATTENUATION 0dB to 101dB in 1dB steps
FREQUENCY DC to 1.5GHz
IMPEDANCE 50 ohms
POWER RATING 2W average, 200W peak
MANUFACTURER RLC electronics
MODEL AS-120
You can view the full spec (pdf) by following this link:
http://www.rlcelectronics.com/pdf_files/FINALRLC_66.pdf