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Compact aluminum USB 3.0 hub with three ports and one RJ45 Gigabit Ethernet jack, attached by a short built-in cable

STARTECH

STARTECH ST3300GU3B USB 3.0 Hub 3 Port Gigabit Ethernet Adapter

SKU CH-3X85-RXTXF MPN ST3300GU3B

Adds three USB 3.0 ports and a Gigabit Ethernet RJ-45 port with Wake-on-LAN via a single USB 3.0 connection

  • Product typeAluminum USB 3.0 Hub w/ GbE Adapter
  • DetailsTechnical Information Host Interface: USB 3.0 Type A Interfa
  • Add three USB 3.0 ports at up to 5 Gbps each
  • Gigabit Ethernet RJ-45 port with Wake-on-LAN support
  • Aluminium casing keeps the adapter slim and lightweight
  • Built-in USB 3.0 cable means no extra lead to carry
  • Backward compatible with USB 2.0 and 1.x devices

Three-Port Hub with Gigabit Ethernet

This adapter adds three USB 3.0 ports and a single RJ45 Gigabit Ethernet connection through one USB 3.0 Type A host port. It suits laptop users who need wired networking and extra peripherals without carrying separate dongles.

Limited to USB 3.0 Bandwidth

The hub shares a 5 Gbps USB 3.0 uplink, so simultaneous high-speed storage and network traffic contend for that ceiling. The Ethernet port negotiates at 10, 100 or 1000 Mbps half or full duplex and cannot exceed the link speed of the attached switch.

Replaces Separate USB Hub and Ethernet Dongle

Consolidating both functions reduces cable clutter and preserves a second USB port on the host. The jump is worthwhile when you regularly connect wired Ethernet plus multiple USB 3.0 devices; buyers who only need extra USB ports or only need a network jack gain no advantage from the combined form factor.

How it compares

Measured against everything we stock in Patch Panels, PoE & LAN Adapters, at today’s prices. Recalculated every night.

Price $42.99
Cheaper than about 59% of the 559 comparable items (median $56.99).

Specifications

Product
Brand nameStarTech.com
Part numberST3300GU3B
Product typeAluminum USB 3.0 Hub w/ GbE Adapter
Size & build
Shipping weight0.50 kg
Package size217 × 149 × 55 mm

Questions about this item

Should I pick this 3-port model or a version with more ports?

This model provides exactly three USB 3.0 ports and one RJ-45 Gigabit Ethernet port; no other port-count versions are listed for the ST3300GU3B.

What speed will I actually see on the Ethernet port when it is plugged into my laptop?

The RJ-45 port supports 10, 100 and 1000 Mbps full-duplex, so a Gigabit link runs at up to 1000 Mbps provided your switch and cabling also support it.

The hub uses USB 3.0 Type-A — what does that limit in practice?

The USB 3.0 Type-A host interface caps the combined hub and Ethernet throughput at 5 Gbps, and it remains backward compatible with USB 2.0 and 1.x hosts.

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