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Item#: N82E16817388032

MASSCOOL UHB-3231 Aluminum 3.5" Black USB 3.0 External Enclosure

  • 3.5"
  • USB 3.0
  • Up to 2TB
  • Aluminum
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Learn more about the MASSCOOL UHB-3231




AC Adapter
Internal Interface
External Interface
USB 3.0
Maximum Capacity (per Bay)
Up to 2TB
HDD Capacity: Support up to 2TB

Data Transfer Rate: Supports Full-speed(12Mbps)/ High-speed(480Mbps)/ Super-speed(5Gbps)

Operation System support: Windows 2000 /XP/Vista/7, Linux or above and Mac OS 8.6 or higher

AC Adapter Input:100V-240V~50/60Hz, Output:12V/2A
High quality aluminum housing is easy for heat disspation

USB 3.0 transfer rates up to 5.0 Gbps

Plug & play Hot-swappable

LED (Power/Data Access)

CE/FCC, RoHS Approved


Package Contents
3.5" External Enclosure
USB3.0 Cable
AC Power Adapter
Screw Driver
User Manual

Manufacturer Warranty

1 year limited
1 year limited

Quick Info


  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year

Customer Reviews of the MASSCOOL UHB-3231

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  • Kevin C.
  • 2/18/2014 7:38:24 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggs2 years old and no problems.

Pros: Cheap and works great.

Cons: When turned on, it takes a little while to show up on my network.

Other Thoughts: Runs through my router for a networked backup drive. I keep it off so i dont ware out the drive and it takes longer than expected to show up. However, it could be because its ran through my network and may not be this at all.

Did you find this review helpful? Yes No

  • Olivier M.
  • 11/17/2013 1:55:18 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsDecent enough enclosure

Pros: Works well, and looks pretty nice. The light is dim and not annoying, like so many other enclosures.

Cons: The plastic parts feel easy to break. If I had to change the drive inside the enclosure on a regular basis, I would get another model.

Other Thoughts: If purchase on sale, it's a really good deal. Not so many USB 3.0 affordable enclosures.

Did you find this review helpful? Yes No

  • Vincent D.
  • 9/6/2013 5:28:53 AM
  • Tech Level: High
  • Ownership: less than 1 day
  • Verified Owner

4 out of 5 eggsMassCool USB 3.0 Enclosure

Pros: Type B USB port, Aluminum case. Cost

Cons: Power Brick and power brick plug layout

Other Thoughts: This case was purchased to replace a Seagate Expansion 1 terabyte drive my Labrador destroyed by getting tangle in the cord under my desk and breaking the mini USB connector off inside the case. This is why I like the much sturdier Type B connector.
2 issues or I would have given this product 5 stars. First is the layout of the power brick. The pins are turned 90 degrees to the length of the brick which in some cases would make the brick take up 2 or more spaces on surge protector. The second issue is the drive didn't slip completely into the controller board SATA connector. I had to loosen the controller board screws to allow the drive to completely seat into the connector then retighten screws before computer would recognize the drive.
After I use this drive for a awhile, I will update with any other comments I may have.

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  • Johnathan S.
  • 6/19/2013 1:16:54 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

1 out of 5 eggsDOA

Pros: Nothing

Cons: Dead on arrival. Costs too little to worry about shipping for an RMA. Guess that's just a wasted 27 bucks.

Other Thoughts: Don't buy. Buy from some other company that actually has QC and won't sell you a lemon.

0 out of 2 people found this review helpful. Did you? Yes No

  • James G.
  • 5/13/2013 7:25:18 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggs

Pros: Fast service and good product

Cons: none

1 out of 1 people found this review helpful. Did you? Yes No

  • Kyle M.
  • 3/12/2013 7:38:57 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week

3 out of 5 eggsLittle too cheap for my taste

Pros: Mine supports a 3TB hard drive well (does not seem to properly spin down when idle for those looking to try it), it works as intended, great speed, it has an on/off switch, and doesn't look terrible.

Cons: Starts to look awful really fast when handled a lot as it picks up every finger print imaginable, and the plastic innards that actually hold the hard drive and itself together is a little cheap my drive rattles too much inside of there, and the AC plug has a rather annoying little LED light. Really, though, the only thing keeping me from giving this a rating of 5 is that poor build quality.

Other Thoughts: I actually purchased this through a local computer store, where they didn't have the specs on hand as to whether or not this would work with a 3TB so I tried it. I opted to have them order me a Rosewill that specifically says it supports 3TB. If you're just planning on using this on a desk and leaving it there, this thing works great. If it is going to be even remotely mobile, I would suggest you go with something with a bit better build quality.

1 out of 1 people found this review helpful. Did you? Yes No

  • James M.
  • 8/11/2012 9:31:40 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsWorked Easily and Well

Pros: The HDD installed very easily.
It worked without balking.
USB cable not too long, not too short (for me).
Attractive price.
Attractive looks.

Cons: Drive was invisible thru a USB 2 hub, but visible when plugged directly into a recent iMac USB 2 port.

Other Thoughts: Installation was super easy. Once I discovered that the USB cable had to connect directly to the iMac, not thru a hub, it works flawlessly. I have another USB 2 drive that is not troubled by a hub connection. I'm using this USB 3 drive at the USB 2 data rate (no USB 3 on my iMac). Works as well as I could want in this mode. Some day I will find out how well it works as a USB 3 drive. Hopefully, it will be fine.

Did you find this review helpful? Yes No

  • Anonymous
  • 4/29/2012 5:32:30 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

2 out of 5 eggsTaking a risk with this

Pros: Bought two. One works, the other was DOA.

Cons: the DOA one had the internal wiring backwards on connections to PCB board. Could have RMA'd, but my mistake for being t0o busy and forgot to do it.

Other Thoughts: Most of these enclosures have mediocre ratings. What are you going to do?
I spent $10 more EA and bought two enclosures with SATA III internal and USB3.0 external.

1 out of 1 people found this review helpful. Did you? Yes No

  • Taylor L.
  • 4/26/2012 9:12:27 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsFast and easy to use

Pros: Easy to swap in drives, no additional drivers required, backward compatible with older USB and hard drive specs, light weight but solid material

Cons: Slightly limited speed as this is only Sata II

Other Thoughts: Notably faster than standard USB 2.0, I'm getting around 60-70 MB/s transfers. Being a Sata II and only having a 7200rpm drive, I don't think it gets the full 3.0 speed. The LED on the front changes between blue and red when processing, a little trippy but cool.

Did you find this review helpful? Yes No

  • Bradley B.
  • 3/30/2012 8:53:05 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggssimple, nice, works + free screwdriver

Pros: It worked out of the box, always a plus.
With the appropriate HD it's fast and efficient.
I like everything about the product itself.

Cons: the user manual is aweful. It looks like a 2nd grade alien wrote it. Words are completely mispelled and used incorrectly and it's totally unprofessional. They should have invested in a interpreter who wasn't a KMART special.

It doesn't really speak well for a company in my opinion.

I agree with another user, if they're going to talk about a software cd that you're supposed to do something with.... it would be nice if they provided the cd. I can only imagine that it's software that they don't offer anymore or they finally got their drivers to Microsoft or they were high on something.

The mounting bracket that holds the facing on to the sliding sleeve that covers the drive and the electronics wasn't drilled properly or something because the screws don't seat properly and the sleeve is still a bit loose. I didn't want to over torque it and strip it.

Other Thoughts: hey the provided the appropriate screws and a free screw driver, they can't be all bad.
I wish they had done something different with the stand. The brushed aluminum body is so slick, if you're not careful it can slide right out the back and off your desk.

2 out of 2 people found this review helpful. Did you? Yes No

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Item#: N82E16817388032
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