Pack of 10 Magnetic Ferrite Core Cord RFI EMI Noise Suppressor Cable Clip (5mm+13mm inner diameter)

Having a multi pack of these ferrite cores on hand is very useful considering the different devices and components I use on a daily basis, which include headphone amps, DACs, laptop chargers, various USB connected devices, and the like. While my DACs and USB noise filter (an Audioquest Jitterbug) offer ample protection, I like the idea of maximum protection from RFI/EMI. I put these on USB cables (known to be noisy) and power cords for the amps and DACs. These ferrite cores perform well, are easy to use, and are a great value. While they can be purchased for less elsewhere (directly from manufacturers in Hong Kong, China, etc.), this 10-pack is reasonably priced from a U.S. seller and you can receive the order in two days as opposed to 21-30. Overall, I am happy with my purchase and recommend these small upgrades to your equipment.

Works Great

They don't work.I put them on my antenna lines and it doesn't help .

These are (so far) the only ones that arrive undamaged of all the cores I have bought on Amazon. They do exactly what they are supposed to!

Just what I needed at a good price and with quick delivery.

good useful tool, not tried it yet

Shipped intact and what I wanted.

all good great deal