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Small black box with three RJ45 ports and a USB power cable

SMUGDESK

SMUGDESK 1-to-3 Gigabit Ethernet Splitter 1000Mbps USB Power

SKU CH-JPM1-SMA22

Expands one RJ45 port into three for simultaneous 1000Mbps networking with USB power support and Cat5-to-Cat8 compatibility

  • Connect three devices at once with a single 1-to-3 RJ45 splitter
  • Gigabit 1000Mbps speed keeps streaming and office tasks running smoothly
  • USB power cable supplies steady current for reliable multi-device operation
  • Works with Cat5 through Cat8 cables for broad network compatibility
  • Compact plug-and-play design fits home and small-office setups

1-to-3 Gigabit Ethernet Splitter

This SMUGDESK adapter expands a single RJ45 port into three Gigabit connections so three devices can share one network drop simultaneously. It targets home users, small offices and basic surveillance setups that need extra wired ports without running new cables. The package includes a USB power cable to keep the splitter stable when all three ports are active. It is not suited for installations that require a unique IP address per device or advanced VLAN segregation.

Sustained 1000Mbps throughput with USB power

Under continuous multi-device load the splitter maintains Gigabit speeds across all three ports because the external USB feed eliminates the voltage drop that causes disconnects on bus-powered hubs. Plug-and-play operation means no driver installation or firmware updates are required during extended sessions. The note in the documentation advises using a router upstream if each device must obtain an independent IP address. Buyers who need per-port traffic isolation or link aggregation should look elsewhere.

Passive cooling and minimal power draw

The compact enclosure relies on passive heat dissipation and draws only the 45 milliamps supplied through the USB cable, so it adds negligible load to a laptop or desktop port. No fan means silent operation in quiet rooms or rack cabinets. The unit works with Cat5 through Cat8 cables without generating measurable warmth during typical office or streaming workloads. Installers who need PoE pass-through or rack-mount brackets will not find those features here.

Highlights

  • Connect three devices at once with a single 1-to-3 RJ45 splitter
  • Gigabit 1000Mbps speed keeps streaming and office tasks running smoothly
  • USB power cable supplies steady current for reliable multi-device operation
  • Works with Cat5 through Cat8 cables for broad network compatibility
  • Compact plug-and-play design fits home and small-office setups

Specifications

No published specifications for this item yet.

Questions about this item

How much heat or noise does the 1-to-3 Gigabit Ethernet splitter produce when running continuously?

The passive splitter has no fan or moving parts, so it generates no audible noise and only minimal warmth during all-day operation.

Which cables and power source do I need to have on hand for the 1-to-3 Gigabit Ethernet splitter to work?

You need four ethernet cables — Cat5 through Cat8 all work — and a free USB-A port or charger to power the included USB cable.

Will the 1-to-3 Gigabit Ethernet splitter slow down my older Cat5e wiring when three devices are connected?

The splitter supports up to 1000Mbps, so Cat5e cables will still run at their rated gigabit speed for each connected device.

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