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Small black RJ45 splitter box with short USB power cable and two female ports

LUOM

LUOM RJ45 1-to-2 Splitter Adapter USB Power 0.8m

SKU CH-JB7T-8735E

Splits one Ethernet cable into two 100 Mbps ports with USB power and shielded Cat5–Cat7 connectors

  • Type1 to 2 RJ45 Network Splitter Adapter
  • Package Contents1 X RJ45 Network Splitter Adapter
  • Two computers online at once via one Ethernet cable
  • Each connection delivers up to 100 Mbps throughput
  • USB-powered 3.3 V adapter ensures stable signal splitting
  • Shielded metal housing blocks electromagnetic interference
  • Extends network reach with 0.8 m integrated cable

Splitter for simultaneous dual-device use

This RJ45 adapter divides one Ethernet cable into two active ports so two computers can share a single line at the same time. A USB power lead supplies 3.3 V to the internal PCB and the metal shield blocks electromagnetic disturbance. The 0.8 m pigtail gives a little placement freedom and the housing measures 4 cm by 3.5 cm by 2.1 cm.

Upgrade from simple mechanical switch boxes

Older A/B switch boxes only let one device talk at a time and require manual toggling. This splitter keeps both ports live so each machine gets its own 100 Mbps path without interference. The jump is worth it when you need permanent simultaneous access rather than occasional switching.

Check your cabling and speed expectations

The incoming cable must carry all eight conductors and be rated Cat 5 through Cat 7 for the stated performance. Each output tops out at 100 Mbps even though the input can handle 1000 Mbps. Ensure the USB power source can deliver 3.3 V and that both target devices have standard 8P8C RJ45 ports.

Highlights

  • Two computers online at once via one Ethernet cable
  • Each connection delivers up to 100 Mbps throughput
  • USB-powered 3.3 V adapter ensures stable signal splitting
  • Shielded metal housing blocks electromagnetic interference
  • Extends network reach with 0.8 m integrated cable

Specifications

Type1 to 2 RJ45 Network Splitter Adapter
Package Contents1 X RJ45 Network Splitter Adapter

Questions about this item

What size opening does the 4cm by 3.5cm by 2.1cm adapter need to fit through?

The splitter housing measures 4cm wide, 3.5cm deep and 2.1cm high, so any cable duct or desk grommet must clear those dimensions.

How do I connect the 0.8m USB power cable so both ports work at 100Mbps?

Plug the USB-A end into any 3.3V USB port, then insert the incoming Cat5-to-Cat7 cable into the single female RJ45 and patch two outgoing cables into the dual female jacks.

When should I replace the shielded RJ45 splitter if speeds drop below 100Mbps per port?

Replace the unit if the metal shielding is bent, the PCB shows corrosion, or the 0.8m USB cable frays, since any of those faults can degrade the 100Mbps per-port throughput.

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