stardrift 10-Pack 3mm Diameter Snap on Ferrite Core Bead Choke Ring Cord RFI EMI Noise Suppressor Filter for USB / Audio / Video Cable Power Cord Black<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>RFI EMI Filter:Stop EMI and RFI effectively to improve signal integrity</li><li>Application Occasion:Clip them on AC power lines，USB cable，mouse cable，keyboard cable，headset cable，video cable，audio cable，data cable</li><li>Clip On Ferrite Cores:The core has small clips on it，it can be opened and clipped on to a cable easily</li><li>Well Made and Nice Quality:Made of Plastic Housing and Ferrite Core，with inner self-adaption clip can mount on cables tightly and work for a super long time</li><li>Suitable for 3.0-4.5mm cables;Package Includes:10 * 3mm Ferrite Core Ring</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51qZBDD4rrL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51uur1DMWaL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51dlL8SWFGL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/418zKYilZkL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41uBj2va4kL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31NLqeYTZbL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/412-mqiGdkL.jpg" noproxy>