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USB Hubs, Extenders and Gadgets

External and internal USB hubs, docking stations, long-distance extenders, flash drives and small USB-powered gadgets. 105 products from $4.99 to $542.99. MCHOSE, STARTECH, Fervit and more.

105 products from $4.99

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Hub speed, shared bandwidth and power

A hub does not create bandwidth, it splits it. A 5 Gbit/s hub gives all its ports a combined 5 Gbit/s, so two fast drives copying at once will each slow down. The standard label tells you the ceiling: USB 3.0 and 3.1 Gen 1 run at 5 Gbit/s, Gen 2 at 10 Gbit/s, and Thunderbolt is faster again. Match the hub to the port on your computer, because it cannot run faster than the host.

Power is the other limit. A bus-powered hub borrows current from the computer, and may struggle with portable hard drives, webcams or phones that charge at the same time. Choose a powered hub with its own adapter for heavy loads, and check that the adapter's voltage and plug match, since a missing or wrong adapter is a common cause of drives disconnecting at random.

Internal hubs, docks and extenders

Internal hubs plug into a motherboard header and add ports inside a case, so check which header your board has before buying. A docking station is a bigger step: it adds display, network and card slots through one cable, and only works as described if the laptop port supports video over USB-C or Thunderbolt.

A single USB cable has a limited reach, so long runs use an extender that sends the signal over network cable. Check the maximum distance and whether it carries USB 2.0 or faster. Flash drives sit here too, and the speed in MB/s is the figure that tells them apart.

Questions about USB Hubs, Extenders and Gadgets

Why is my hub slower than expected?
All ports share one connection to the computer, and the slowest device or standard in the chain can limit things. Plug fast drives into the computer directly or use a hub with a higher speed rating.
Do I need a powered USB hub?
Yes for bus-hungry devices such as external hard drives, cameras and charging several gadgets. A bus-powered hub may be enough for a mouse and keyboard, but shared power can cause drive dropouts.
How many devices can one USB port support?
The USB standard allows up to 127 devices on one host controller, but real limits are bandwidth and power. A few active devices on one hub are usually the practical limit.