This LOT is one piece of New (unused old stock) Mini-Circuits 6dB Attenuator DC-1500MHz 1W 50 Ohm with Type N Connectors. Part Number: NAT-6. These attenuator are never used new old stock, since they had silver plated and over the time, the silver gets darker (see pictures), and not very shining anymore, please take a consideration when you buy. Believe the electric performance are not affected.

Data sheet:

http://rfbayinc.com/upload/files/data_sheet/mini-circuits_att.pdf