We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
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

  • TypeAluminum USB 3.0 Hub w/ GbE Adapter
  • SpecificationsTechnical 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.

Highlights

  • 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

Specifications

BrandStarTech.com
Part NumberST3300GU3B
TypeAluminum USB 3.0 Hub w/ GbE Adapter
SpecificationsTechnical Information
Host Interface:
USB 3.0 Type A
Interfaces/Ports
Total Number of USB Ports:
3
Number of USB 3.0 Ports:
3
Number of Network (RJ-45) Ports:
1
Software
Operating System Supported:
Windows XP
Windows Vista
Windows 7
Windows 8
Windows 8.1
Windows 10
Windows 11
Windows Server 2003
Windows Server 2008 R2
Windows Server 2012
Windows Server 2012 R2
Windows Server 2016
Windows Server 2019
Windows Server 2022
Mac OS X 10.6 Snow Leopard
Mac OS X 10.8 Mountain Lion
Mac OS X 10.10 Yosemite
Mac OS X 10.11 El Capitan
Mac OS X 10.12 Sierra
Mac OS X 10.13 High Sierra
Mac OS X 10.1
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.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.