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RJ45 Connectors Explained in 60 Seconds

Why are RJ45 connectors used in everything from routers to gaming consoles? This quick overview covers their easy-to-use design, optional LEDs and integrated magnetics, ruggedized configurations, Ethernet cable standards, and Power over Ethernet (PoE).

9/22/2026 4:47:01 PM Share

Modular/Ethernet Connector (RJ45) Jacks With Magnetics

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
CONN JACK 1PORT PCBCRJ009-ML4-THCONN JACK 1PORT PCB1677 - Immediate$9.07View Details
CONN JACK 1PORT PCBCRJ007-MLG-THCONN JACK 1PORT PCB2034 - Immediate$9.51View Details
CONN JACK 1PORT PCBCRJ005-M1-THCONN JACK 1PORT PCB12 - Immediate
1940 - Marketplace
$6.54View Details
CONN JACK 1PORT PCBCRJ010-ML4-THCONN JACK 1PORT PCB880 - Immediate$9.58View Details
CONN JACK 1PORT PCBCRJ008-MG-THCONN JACK 1PORT PCB21 - Immediate
1375 - Marketplace
$6.64View Details

Modular/Ethernet Connector (RJ45, RJ11) Jacks

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
RJ JACK, 1 PORT, 6P6C, 6U, UNSHICRJ025-1-THRJ JACK, 1 PORT, 6P6C, 6U, UNSHI725 - Immediate$1.40View Details
RJ JACK, 1 PORT, 6P6C, GOLD FLASCRJ030-G-THRJ JACK, 1 PORT, 6P6C, GOLD FLAS1225 - Immediate$1.76View Details
RJ JACK, 1 PORT, 6P6C, 6U, SHIELCRJ024-1-THRJ JACK, 1 PORT, 6P6C, 6U, SHIEL1255 - Immediate$1.85View Details
RJ JACK, 1 PORT, 8P8C, GOLD FLASCRJ048-LG-THRJ JACK, 1 PORT, 8P8C, GOLD FLAS1340 - Immediate$2.12View Details
RJ JACK, 1 PORT, 8P8C, 6U, SHIELCRJ043-1-THRJ JACK, 1 PORT, 8P8C, 6U, SHIEL867 - Immediate$2.24View Details