AudioQuest's 'Noise Stoppers' are claimed to reduce or eliminate RF/EMI noise from entering unused connections - even if they didn't do that, it's a small price to pay for helping to reduce corrosion and keeping dust away from areas that are impossible to get to and clean!

AudioQuest noise stoppers, dust covers, AudioQuest in Birmingham,

phono rca

 

£39 for 10

AudioQuest noise stoppers, dust covers, AudioQuest in Birmingham,

hdmi

 

£26 for 4

AudioQuest noise stoppers, dust covers, AudioQuest in Birmingham,

ethernet

 

£26 for 4

AudioQuest noise stoppers, dust covers, AudioQuest in Birmingham,

usb

 

£26 for 4

audioquest connection stoppers