Monoprice USB 3.0 4-port Aluminum Hub
Product # 21670
UPC # 889028049921
$10.15
$17.49
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Browse 31 questions
Browse 31 questions
and 49 answers
Is the USB cable detachable?
A shopper
on Jul 28, 2018
BEST ANSWER: No, it is not. Unless you use a wire cutter.
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- Daniel M on Jul 28, 2018
- Purchased on Oct 29, 2017
BEST ANSWER: No, it is not. Unless you use a wire cutter.
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- Daniel M on Jul 28, 2018
- Purchased on Oct 29, 2017
No, the USB cable does not detach
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- Stephen L on Jul 28, 2018
- Purchased on Nov 9, 2017
The USB cable is not detachable.
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- james g on Jul 28, 2018
- Purchased on Dec 3, 2017
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What's the difference between 4X1 and 4 Outlet listings?
A shopper
on Jun 14, 2017
BEST ANSWER: Thank you for your question. Both will be the same exact 4 port hub. However, the 4 Outlet listing will include an AC Power Adapter and the 4x1 listing will not include the AC Power Adapter.
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- Mark P Staff on Jun 21, 2017
BEST ANSWER: Thank you for your question. Both will be the same exact 4 port hub. However, the 4 Outlet listing will include an AC Power Adapter and the 4x1 listing will not include the AC Power Adapter.
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- Mark P Staff on Jun 21, 2017
Is the power adapter necessary, or can the hub be self-powered when plugged into a laptop or vehicle?
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- David H G on Dec 22, 2019
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Will this work on a PS4?
A shopper
on Dec 17, 2017
BEST ANSWER: Considering that the "U" in USB stands for UNIVERSAL (Serial Bus), then yes it will work!
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- Hector J. R on Jan 16, 2018
BEST ANSWER: Considering that the "U" in USB stands for UNIVERSAL (Serial Bus), then yes it will work!
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- Hector J. R on Jan 16, 2018
Should work. USB hubs are very standard.
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- Daniel P on Dec 17, 2017
- Purchased on Apr 21, 2017
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Does this have overcharge protection?
A shopper
on May 21, 2019
BEST ANSWER: Smart devices, like phones, tablets, etc. control charging inside the device... when the battery reaches full charge, the device stops accepting power from the charging device. "Dumb" devices with batteries that are usually replaceable and often look like conventional AAA or AA batteries, may not have overcharge protection and it's up to you to stop charging after some period of time. Also, USB 3.1 transfers data twice as fast as USB 3.0 so a USB 3.1 expander may be a better purchase for many people as it will be compatible with USB 3.1 in their next computer even if their current computer does not have USB 3.1.
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- Douglas B on May 21, 2019
- Purchased on Jun 7, 2018
BEST ANSWER: Smart devices, like phones, tablets, etc. control charging inside the device... when the battery reaches full charge, the device stops accepting power from the charging device. "Dumb" devices with batteries that are usually replaceable and often look like conventional AAA or AA batteries, may not have overcharge protection and it's up to you to stop charging after some period of time. Also, USB 3.1 transfers data twice as fast as USB 3.0 so a USB 3.1 expander may be a better purchase for many people as it will be compatible with USB 3.1 in their next computer even if their current computer does not have USB 3.1.
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- Douglas B on May 21, 2019
- Purchased on Jun 7, 2018
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Does this work with new Windows 10? As stated on other comments that it didn’t work well.
A shopper
on Nov 29, 2019
BEST ANSWER: I'm using to add additional USB ports on a new HP laptop running Windows 10. Haven't had any problems.
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- JODY W. on Dec 31, 2019
BEST ANSWER: I'm using to add additional USB ports on a new HP laptop running Windows 10. Haven't had any problems.
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- JODY W. on Dec 31, 2019
Mine works with windows 10. It doesn’t require a driver so I’m not sure why it wouldn’t work.
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- Edward H on Nov 30, 2019
- Purchased on Mar 14, 2019
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What size power connector (barrel) does this use?
Edward H
on Mar 13, 2019
BEST ANSWER: 3.5 mm, center positive, make sure it's 5V. Thanks.
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- Irv S Staff on Mar 13, 2019
BEST ANSWER: 3.5 mm, center positive, make sure it's 5V. Thanks.
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- Irv S Staff on Mar 13, 2019
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what is the length of the cable that is attached?
A shopper
on Feb 3, 2020
BEST ANSWER: Thank you for your question.
It would be about 6" long.
It would be about 6" long.
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- Tyler C Staff on Feb 4, 2020
BEST ANSWER: Thank you for your question.
It would be about 6" long.
It would be about 6" long.
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- Tyler C Staff on Feb 4, 2020
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Can I purchase the ac adapter separately? If not, can you give me the model number?
My usb hub came with the wrong ac adapter but I found out like a year later when I actually needed it to power more devices.
My usb hub came with the wrong ac adapter but I found out like a year later when I actually needed it to power more devices.
A shopper
on Dec 16, 2022
BEST ANSWER: I purchased the "4" not the "4x1", mine does not have ac adapter. Until you asked question I never paid attention, although I did want one that did not require using ac.
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- PAULV F. on Dec 22, 2022
- Purchased on Sep 22, 2022
BEST ANSWER: I purchased the "4" not the "4x1", mine does not have ac adapter. Until you asked question I never paid attention, although I did want one that did not require using ac.
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- PAULV F. on Dec 22, 2022
- Purchased on Sep 22, 2022
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Is it safe to assume we're talking about this hub uses USB Attached SCSI protocol (UASP)? What chipset does it use?
Christopher W
on Apr 30, 2019
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Rated 5 out of 5
Works fine right away - no hassle!
It worked like a charm when I plugged it in, both on a Mac and a PC.
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Rated 5 out of 5
Works well.
Works very well and does not require power other than inserting in computer.
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Rated 5 out of 5
Works well and is compact
It works well and is pretty small. It is what I wanted it to be.
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Rated 5 out of 5
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Rated 5 out of 5
it works
It works. I just wanted more usb 3 ports and this does that without taking away my only usb-c port.
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Rated 5 out of 5
Pretty good
Used it to connect 4 controllers to a laptop, and later just to keep track of my bluetooth chip. It's solid, works pretty well without external power as well.
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Rated 5 out of 5
Does the right things for the right price.
Small cheap and solved the problem of limited ports on a new laptop.
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Rated 4 out of 5
It works, but
The only complaint is the overly bright LED, and on my hub, the USB ports must be misshaped somehow. I have to insert the male USB connection at an angle, and then push in forcefully.
Otherwise, it works well once everything is plugged in.
Otherwise, it works well once everything is plugged in.
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February 28, 2021
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Rated 3 out of 5
Works well, but is noisy
While the device itself works quite well, it does throw off lots of EM / coil whine when powered by the included wall wart. When bus powered it does make any noise. Fortunately USB 3 delivers much more bus power than USB 2 meaning low energy devices (keyboards, mice, and even a USB audio interface) can all be powered without the need for an additional power input.
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August 14, 2020
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Rated 5 out of 5
Good Monoprice purchase expanding my USB 3.0 ports!
I like it! Now have cordless mouse/keyboard, flash drives and computer hard drive plugs, which frees up the two USB 3.0 ports in front of my PC. Looks good too!
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