iDefender+ USB-A noise and ground loop eliminator. Opened, tested, but not used. The noise issue was elsewhere in my system. The picture displays all that you will receive.

Manufacturer's product listing:

"Is your audio still plagued by hum and buzz?

Using multiple plugs within your audio chain means separate earth/ground points. These multiple earth or ground points cause a ground loop problem. This creates an unwanted chain of noise, buzz and distortion.

Struggle no more. iFi’s iDefender+ provides the simple, effective solution you need."

*** A note on returns: I am willing to accepts returns for any reason for 7 days. That is in line with the Reverb default policy. However, you the buyer will be responsible for shipping costs in both directions upon return and will be refunded the purchase amount less the original shipping fee and payment processing fee (~3.5%). I just want to make this clear, as I feel the site could do a better job communicating that the shipper and payment processor are third parties that must be paid regardless.