Network Cable Tester, Network Tester with Remote, Pro3000 Test Kit Locates Power Over Ethernet Network Toner Tester with AC Filter Standards Measure Cable Fault Distance, Coax and Voip: Amazon.com: Industrial & Scientific
eno Ethernet Filter (discontinued, new product coming soon) – Network Acoustics
ADSL/ADSL2+ Microfilter Internet Broadband Micro Filter Splitter With Cable Lead | eBay
Synergistic Research Galileo Discovery Ethernet CAT7 | highend-electronics, inc.
High Speed HDMI Cable Ethernet with Ferrite Filter Cores - 4K 60Hz 15/25/50ft | eBay
Ethernet Hub/Switch RFI Kit - DC + Cable Filters (4/8 port option) - Ferrite Toroid/Ring Cores - Palomar Engineers®
iSO-CAT6 LAN single noise filter – SOtM USA
Ethernet filters: Waversa EXT-2 vs Muon Pro (and some cable comparison) - Network Audio - PS Audio
HDMI Cable X 1.4 3D MICRO-HDMI 4K FULL HD ETHERNET with Filter 3 Meters Black
Network Acoustics MUON Pro Ethernet Filter | HFA - The Independent Source for Audio Equipment Reviews
LFI-1 LOW FREQUENCY INJECTOR SUB-BAND SPLITTING FILTER FOR IP VIDEO - FM Systems