This Arris CX3510M tuner is being sold without a power cord and therefore is untested. It is a great addition to your home networking and connectivity setup for those who know how to handle older models. The unit is in good cosmetic condition, with minimal signs of wear and tear. Despite not being able to test the unit, we are confident that it will function properly once a power cord is connected. The Arris CX3510M is highly sought after for its reliability and durability, and it is perfect for those who need a reliable tuner for their home networking purposes. Don't miss out on this great opportunity to own an Arris CX3510M tuner.