Monoprice USB 3.0 4-port Aluminum Hub with AC Adapter
Product # 21671
UPC # 889028049938
$19.99
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Browse 27 questions
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and 42 answers
Does this get enough power through the USB Bus to operate 4 devices simultaneously, such as flash drives or external hard drives, or would the PID: 21671 be better suited for that?
David D
on Aug 16, 2017
Monoprice USB 3.0 4-port Aluminum Hub with AC Adapter
Monoprice Mini 4-port USB 3.0 Travel Hub
BEST ANSWER: To answer your inquiry David I have the mini 4 port. All four slots filled with 1 -4T travel drive a 3-32gb thumb drives with no lag in performance, so yes is the answer.
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- Vincent P on Aug 16, 2017
- Purchased on Aug 4, 2017
BEST ANSWER: To answer your inquiry David I have the mini 4 port. All four slots filled with 1 -4T travel drive a 3-32gb thumb drives with no lag in performance, so yes is the answer.
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- Vincent P on Aug 16, 2017
- Purchased on Aug 4, 2017
USB 3.0 spec states that upto 900 mA per port may be consumed. So for a truly compliant USB 3.0 hub, need as a minimum 4*900 = 3.6A power supply. Since the supplied adapter is rated @ 2A, no this hub is not fully compliant. If your downstream ports are consuming lower current than this 900 mA then you may be ok but is like playing roulette.
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- New User U on Jan 4, 2018
I'm running it through my laptop and have a cordless keyboard, a cordless mouse and a printer all plugged into the hub, with one hub left I used to plug in a flash drive to download some files I had. Haven't experienced any lack of power or drain at all.
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- JODY W. on Dec 31, 2019
- Purchased on Dec 6, 2019
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How long are both the USB cable and the AC adapter?
A shopper
on Dec 23, 2017
BEST ANSWER: The cord that is attached to my 4-port USB 3.0 hub is about 11 inches, and the length of the cord for the AC Adapter that came with it is about 4 feet.
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- Larry D on Dec 23, 2017
- Purchased on Jun 27, 2017
BEST ANSWER: The cord that is attached to my 4-port USB 3.0 hub is about 11 inches, and the length of the cord for the AC Adapter that came with it is about 4 feet.
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- Larry D on Dec 23, 2017
- Purchased on Jun 27, 2017
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Can this be used as a stand alone charging station?
A shopper
on Feb 15, 2018
BEST ANSWER: Good question and hadn't thought about that option. I unplugged it from my PC and plugged in two phones and my phone iPad and all three showed charging off the wall adapter. So it will work for at least three devices.
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- John P on Feb 16, 2018
- Purchased on Aug 6, 2017
BEST ANSWER: Good question and hadn't thought about that option. I unplugged it from my PC and plugged in two phones and my phone iPad and all three showed charging off the wall adapter. So it will work for at least three devices.
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- John P on Feb 16, 2018
- Purchased on Aug 6, 2017
Yes, with AC Adapter but the amperage will be less than with the standard chargers provided with your devices if you connect more than 2 devices assuming your electronics are recently purchased.
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- New User U on Nov 7, 2019
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Where is this manufactured?
A shopper
on Jan 9, 2021
BEST ANSWER: Label on the bottom says "Made In China"
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- Robert E Bennett J on Jan 10, 2021
- Purchased on Apr 29, 2020
BEST ANSWER: Label on the bottom says "Made In China"
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- Robert E Bennett J on Jan 10, 2021
- Purchased on Apr 29, 2020
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Which DC adapter are compatible with these USB adapters?
A shopper
on Nov 17, 2018
BEST ANSWER: 5V@2A universal wall adapter is supplied - if you select that option when ordering
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- ROBERT B on Apr 17, 2020
- Purchased on Mar 22, 2020
BEST ANSWER: 5V@2A universal wall adapter is supplied - if you select that option when ordering
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- ROBERT B on Apr 17, 2020
- Purchased on Mar 22, 2020
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Does this device support UASP (USB Attached SCSI Protocol)?
Lucas S
on Oct 10, 2023
Monoprice USB 3.0 4-port Aluminum Hub with AC Adapter
Monoprice USB 3.0 4-port Aluminum Hub
BEST ANSWER: Yep - I've got a few external SSD's attached to this to access various files that I don't store on my computer or in the cloud, and save Time Machine Back-Ups on them. Transfer speeds are slow though if you're moving a lot of data.
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- John G on Jan 17, 2024
- Purchased on Jun 14, 2023
BEST ANSWER: Yep - I've got a few external SSD's attached to this to access various files that I don't store on my computer or in the cloud, and save Time Machine Back-Ups on them. Transfer speeds are slow though if you're moving a lot of data.
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- John G on Jan 17, 2024
- Purchased on Jun 14, 2023
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I have 2 Hdd running in a software RAID1. I use these for backups so they run for a very long time. The hub I currently use doesn't seem to be able to handle more than a few mb/s. Does anyone have experience with the transfer speeds of this hub for large files?
A shopper
on Jan 10, 2024
BEST ANSWER: I transferred about 200 GB of data through this the other day. Was running between 35-40 MB/s. Have another hub (neither have a power adapter) that both ran between 325-375 MB/s, same to SSD plugged directly into laptop.
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- John G on Jan 17, 2024
- Purchased on Jun 14, 2023
BEST ANSWER: I transferred about 200 GB of data through this the other day. Was running between 35-40 MB/s. Have another hub (neither have a power adapter) that both ran between 325-375 MB/s, same to SSD plugged directly into laptop.
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- John G on Jan 17, 2024
- Purchased on Jun 14, 2023
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Reviews
4.5 / 5.0
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Rated 5 out of 5
USB hub
Purchased the USB hub to expand the ports on my Mac Mini. Perfect for the job and would recommend the product and purchasing from Monoprice. In my opinion, the quality is better and the price is lower than what I would have purchased at a retail store. Delivery was timely and I was kept up to date on the progress of my package. I will definitely use Monoprice again.
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Response from Monoprice
Thank you for the detailed review! We're thrilled to hear that the USB hub worked perfectly for your Mac Mini and that you had a great experience with us. We look forward to serving you again in the future!
February 15, 2024
Eli S
Rated 5 out of 5
Works, good looking, seems solid
Works, good looking, seems solid. And comes with an AC adapter, so can be used as a (low powered) charging station.
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Rated 2 out of 5
a Little loose
Some of the connections are a little loose. Fine as long as you bump it a lot
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Rated 4 out of 5
Powered hubs are always welcome to me
I needed an externally powered hub like this one because I run a drawing tablet(two USB outlets for power and data) and a USB SSD(also power hungry) and I was always running into random-rebooting issues.
And now with THIS powered hub I can even run a USB keypad as well and not have to worry about power issues damaging my laptop anymore
And now with THIS powered hub I can even run a USB keypad as well and not have to worry about power issues damaging my laptop anymore
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Rated 4 out of 5
Works well, may e a tricky attaching to an iPad.
It is a bit tricky to get my iPad with the camera adapter usb dongle to accept the device. Apple suggests a power down, found the hub needs to be connected first without power and after it recognizes the dongle I plug it in. to know that it recognizes the dongle, I first plug in the usb light and wait for it to power on, the I attach the hub. I think this an Apple feature and not limited to this hub. Once it connects works great, sees my midi and mixer with good response. No issues on my pc.
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Rated 5 out of 5
Great item. Small and powerful. Works as advertised. Thanks for great Products at fair prices.
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Rated 5 out of 5
Works great on laptop
Exactly what I needed. Now I can have all my USB 3 devices hooked up at the same time.
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Rated 5 out of 5
No issues - external powered
If you need more USB 3.0 ports for items that need the full 500mA power to the device, then this externally powered 4-port hub is the thing for you! It comes with a 5V 2A wall wart.
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Rated 5 out of 5
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Rated 5 out of 5
4-port USB 3 hub is great
This 4 port hub is excellent. I can very much recommend it.
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