RJ45
8P8C Ethernet
Invented in
1980s
Invented by
Registered Jack standard (Bell)
Availability
Ubiquitous
The clear modular plug at both ends of every Ethernet cable. Eight contacts crimped onto four twisted pairs carry wired internet at up to 10 Gb/s and beyond.
Technical specifications
Standard8P8C
SignalEthernet data
Speedup to 10 Gb/s (Cat6A)
Pairs4 twisted
Found on
a laptopa desktop PCa printera TVa games consolea routeran Arduino / Raspberry Pi
Recommended brands
01Telegärtner
02Panduit
03Lindy
Where to buy
Europe-focused retailer searches. Some links are affiliate links and may earn a commission.
Common adapters and cables
Thunderbolt to Ethernet adapter
Fun fact
The familiar click-latch is its weakest point, the tab snaps off so often that "clipless" booted versions were invented to save it.
Tips & tricks
Choose booted clip-protectors and Cat6+ for reliable gigabit over longer runs.
Philosophy
The unglamorous backbone of the connected world. Wi-Fi gets the glory, but the real traffic still runs on eight little wires.
Applications
InternetData
