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Mediasonic HFR2-SU3S2 PRORAID 4 Bay 3.5" SATA Hard Drive Enclosure - USB 3.0 & eSATA

4.1 4.1 out of 5 stars 3,936 ratings

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HFR2-SU3S2

Purchase options and add-ons

Hardware Interface FireWire eSATA, USB 3.0
Brand Mediasonic
Product Dimensions 6.5"L x 5"W x 8.5"H
Hardware Platform PC, Mac, Unix, Linux
Material Metal

About this item

  • Support 3.5" SATA I / II / III hard disk drive up to 16TB per drive, Support Hard Drive Transfer Rate up to SATA III Speed. Hardware Raid controller built-in on board with one-button control.
  • One Button Raid Control support Single Drive Mode, Raid 0 (Spanning) JBOD, Raid 0 (Stripping), Raid 1 (Mirroring), Raid 3 (Stripped set with dedicated parity), Raid 5 (Stripped set with distributed parity), Raid 10 (Mirroring + Striping)
  • Transfer rate up to 5.0Gbps via USB 3.0, up to 3.0Gbps via eSATA.
  • Smart Fan with built-in thermal-sensor, Auto & Manual modes, and 3 speed levels
  • Compatible with Mac OSX 10.8 or later and Windows 10 / 8.1 / 8 / 7

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Mediasonic HFR2-SU3S2 PRORAID 4 Bay 3.5" SATA Hard Drive Enclosure - USB 3.0 & eSATA
Mediasonic HFR2-SU3S2 PRORAID 4 Bay 3.5" SATA Hard Drive Enclosure - USB 3.0 & eSATA
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Price$159.99-6% $109.99
Typical:$116.99
$219.99$169.99-12% $229.99
List:$259.99
$36.99
Delivery
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Customer Ratings
Easy to use
4.2
4.2
4.2
4.5
4.1
4.5
Tech Support
3.3
3.3
3.4
3.7
3.5
4.1
Quality of material
3.9
3.9
3.9
4.6
4.3
Value for money
3.8
3.8
4.1
3.3
4.2
Easy to install
4.5
4.5
4.2
4.7
Sold By
Mediasonic Store
Mediasonic Store
TERRAMASTER
TERRAMASTER
Store4PC
FIDECO

From the manufacturer

banner HFR2-SU3S2
Front

Product Feature:

  • Support 3.5" SATA I / II / III hard disk drive up to 16TB per drive, and up to 4 x 16TB. (Not compatible with 4Kn Native Drives, and Power Disable feature HDD's) Example: WD / HGST Enterprise Drives.
  • Support 2.5" SATA SSD / HDD up to 12TB per drive. (Adapter Bracket required, sold separately.)
  • Hardware Raid controller built-in on board.
  • Transfer rate up to 5.0Gbps via USB 3.0 and up to 3.0Gbps via eSATA (SATA II speed).
  • Smart Fan with built-in temperature sensor, Auto & Manual modes, and 3 speed levels
  • Support S.M.A.R.T
  • Support Power Synchronization with Computer.

Raid Mode 1

Raid Mode 2

Smart Fan

Interface

Raid Mode Support

  • Single Mode: Computer will recognize 4 individual hard drives
  • Raid 0 (Spanning) JBOD
  • Raid 0 (Stripping)
  • Raid 1 (Mirroring)

Raid Mode Support

  • Raid 3 (Stripped set with dedicated parity)
  • Raid 5 (Stripped set with distributed parity)
  • Raid 10 (Mirroring + Stripping)

Smart Fan Feature & S.M.A.R.T.

  • Auto and Manual mode to keep your drives cool.
  • Manual mode has 3 level of fan speed selection

USB 3.0 & eSATA Interface

  • USB 3.0 Transfer rate up to 5.0Gbps
  • eSATA Transfer rate up to 3.0Gbps

HFR2-SU3S2 Back

Important Notes:

  1. Enclosure is not default to any Raid mode. Please set up your desired Raid Mode, or the enclosure will turn off after few seconds after it turned on.
  2. Raid mode confirmation button is at the back of the enclosure. Please see picture on the left.
  3. If this unit is connected to eSATA port, please make sure your computer eSATA port support Port-Multiplier.
  4. Mediasonic strongly recommend user to install same capacity / model / brand of hard drive when you are setting Raid Mode. (Except Single Mode).
  5. User can download user manual and QIG from Technical Specification in Product information below.

Supporting Operating System

  • Windows 10 / 11 (32 / 64bit) (GPT Partition)
  • Mac OSX 10.8 or later
  • Does NOT support Linux
  • Please Contact Mediasonic Store via Amazon message system for any Service & Return issue

Raid Mode Transfer Rate

  • When this unit is in Raid Mode, the hard drive transfer rate is set at SATA 2 speed (3.0Gbps). Therefore, the transfer rate for USB 3.0 / eSATA connection will be limited to 3.0Gbps.
  • This limitation is due to the chipset, and no firmware fix.
  • However, when this unit is in Single mode (4 independent hdd setting), the hard drive transfer rate will support SATA 3 speed, up to (5.0Gbps) for USB 3.0

Latest Update Information

  • September 2019
  • Support 16TB hard drive for 2019 purchased
4 bay hard drive enclosure sata to usb 3.1 gen 2 10gbps usb c usb c hub docking station ssd usb 3.0 4 bay hard drive enclosure sata to usb 3.1 gen 2 10gbps usb c usb c hub docking station ssd usb 3.0 4 bay hard drive enclosure sata to usb 3.1 gen 2 10gbps usb c usb c hub docking station ssd usb 3.0 2 bay raid enclosure 4 bay hard drive enclosure sata to usb 3.1 gen 2 10gbps usb c usb c hub docking station ssd usb 3.0
HFR2-SU3S2 HFR7-SU31CH HFR7-SU31CD HUR5-SU31C HUR6-SU31C
Customer Reviews
4.1 out of 5 stars
3,936
4.1 out of 5 stars
3,936
3.5 out of 5 stars
35
4.1 out of 5 stars
3,936
4.2 out of 5 stars
164
Number of Bay 4 4 4 2 2
Hardware Embedded Raid
Interface USB 3.0 & eSATA USB 3.1 Gen 2 Type C USB 3.1 Gen 2 Type C USB 3.1 Gen 2 Type C USB 3.1 Gen 2 Type C
USB Hub Feature
Power Delivery 3.0
4K HDMI Extender
SD Card Slot
Samrt Fan & Power Sync

What's in the box

  • Main Unit + Accessory
  • Looking for specific info?

    Product information

    Warranty & Support

    Product Warranty: For warranty information about this product, please click here

    Feedback

    Mediasonic

    Mediasonic HFR2-SU3S2 PRORAID 4 Bay 3.5" SATA Hard Drive Enclosure - USB 3.0 & eSATA


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    Product guides and documents

    Product Description

    Mediasonic HFR2-SU3S2 ProRaid is a 4 Bay Enclosure. The main feature of ProRaid Box is its Hardware Embedded Raid function. It supports RAID 0/1/3/5/10.

    Customer reviews

    4.1 out of 5 stars
    4.1 out of 5
    3,936 global ratings

    Customers say

    Customers like the ease of setup and speed of the hard drive enclosure. For example, they mention it's plug-and-play, and the content loads quickly from the unit. That said, some complain about connectivity issues and opinions are mixed on performance, quality, value, noise, and appearance.

    AI-generated from the text of customer reviews

    515 customers mention458 positive57 negative

    Customers find the setup of the hard drive enclosure reasonably easy. They mention that the box is self-contained, plug-and-play, and requires no drivers. They also say that installing the drives was painless, and the configuration is very simple. Customers also say the transfers are relatively painless.

    "...The box is self-contained and plug-and-play; it requires no drivers and adds little or no extra load to the host PC...." Read more

    "...Setup was very easy - after mounting the pull fixtures to the drives, I slid them in, turned in on...." Read more

    "...Product arrived two days after ordered. Install was simple. I don't have an ESATA port so I used USB as planned...." Read more

    "...appreciated Amazon Prime 2-day free shipping, and the very simple setup and configuration, I am giving this product a 5 star review without..." Read more

    391 customers mention273 positive118 negative

    Customers are mixed about the value of the hard drive enclosure. Some mention that it's great for the money, and an inexpensive way to increase storage capacity. However, others say that it is not a commercial grade product, and is shoddy and useless for their needs.

    "...WHAT IT IS NOT: You do get what you pay for. This is a very economical / cost-effective unit (for a multi-interface RAID unit)...." Read more

    "...be a small company focused on providing quality products at a reasonable price point with good customer service...." Read more

    "...I cast scorn upon those who would loose such an ill created, shoddy product upon the unsuspecting...." Read more

    "...All in all, a good purchase for the price.-P" Read more

    375 customers mention277 positive98 negative

    Customers like the speed of the hard drive enclosure. They mention that the USB3 is fast, the data uplink seems to be fast, and the content loads quickly from the unit. Copying is blazing fast, with no erratic speeds. The throughput has been very good, and there's no reason to believe that will change.

    "...I like the multiple speed options for the cooling fan, three set speeds and an auto speed setting...." Read more

    "...It's compact and easy to carry around.* USB3 is fast - I haven't actually used USB3, but it is backwards compatible with USB2..." Read more

    "...USB 3.0 and e-SATA work great. Was getting excellent speeds (over 100MB/s, limited by my motherboard)-..." Read more

    "...Might be a slight performance loss, but certainly merits further testing...." Read more

    1,095 customers mention740 positive355 negative

    Customers are mixed about the performance of the hard drive enclosure. Some mention that it performs well, while others say that it doesn't work properly with their laptop. The USB 3.0 interface is unreliable and can be flaky. Some customers also report failures to recognize the drives within the box.

    "...is why I purchased the ProBox device in the first place and it worked beautifully and exactly the way I expected when I set it up the way I did...." Read more

    "...I have also found the manual "high" fan setting works pretty well and is still pretty quiet -- not really noticeable if sitting under the desk...." Read more

    "...My advice to you, stay away from this product because the USB 3.0 is flaky at best and there are tons of people complaining about it here and on..." Read more

    "I bought this unit because it did hardware RAID5, had USB3, eSata, supported 4 drives, and was little...." Read more

    822 customers mention529 positive293 negative

    Customers are mixed about the quality of the hard drive enclosure. Some mention that it's reasonably well constructed, dependable, and easy to install and operate. However, others say that it has failed and their entire Storage Spaces file system will crash. Some customers also mention that the connectors are poor and the product is not a substitute for backups.

    "...eSATA connections -- the Mediasonic box became absolutely solid and reliable, working predictably in harmony with the PC to which it is connected...." Read more

    "...Pros:- Looks very nice and has a nice form factor-..." Read more

    "...This is not RAID - I assume anyone reading or buying this device knows that already but it is an important aspect...." Read more

    "...Decent looks and seemingly decent build qualityCONS- As others have stated, the lights are fairly bright-..." Read more

    368 customers mention187 positive181 negative

    Customers are mixed about the noise of the hard drive enclosure. Some mention that it operates quietly, while others say that the fan is fairly noisy. The drives are loud, and the fan still puts off a light hum at low RPM. Some customers find the lights annoying and frustrating.

    "...found the manual "high" fan setting works pretty well and is still pretty quiet -- not really noticeable if sitting under the desk...." Read more

    "...In, out, in, out every few seconds. Pretty frustrating and I began to think that I had a bad controller on the box...." Read more

    "...On low it's pretty silent. The included product sheet comes with instructions for adjusting the fan screws to reduce noise...." Read more

    "...In lowest RPM, the fan still puts off a light hum, and is quite loud maxed out (but I have 4 drives in this thing, I want to keep them cool!)-..." Read more

    210 customers mention141 positive69 negative

    Customers are mixed about the appearance of the hard drive enclosure. Some mention that it looks good, is well designed, and easy to install. They also appreciate the pretty blue lights on the drive. However, other customers say that it's of a positively terrible design, inelegant, and cumbersome. They mention that in spite of some quirky design choices, overall this appears to be shoddy and under-performing.

    "...Pros:- Looks very nice and has a nice form factor-..." Read more

    "...- Nice size, about half the size of a shoe box- Decent looks and seemingly decent build qualityCONS-..." Read more

    "How disappointing & appalling that, at this point in time, a product as shoddy & under-performing as this one would find it's way onto the Amazon..." Read more

    "...I also love the pretty blue lights on the drive, although they might be too bright if you have this placed in a bedroom or movie room...." Read more

    229 customers mention40 positive189 negative

    Customers are dissatisfied with the connectivity of the hard drive enclosure. They mention that it keeps connecting and then disconnecting. Some customers also say that the ESATA connector on the box doesn't make reliable connections. In large transfers, the ProBox would lose connection to the computer. Some say that this was due to a defective drive. Overall, customers are not happy with the product's connectivity.

    "...However, ever since I got it, I had USB 3.0 issues with intermittent disconnects...." Read more

    "...- Based on the issues I had, if you buy this and it keeps connecting and then disconnecting, it may be worth trying each drive individually...." Read more

    "...eSATA: The Unit does not see an eSATA connection at all...." Read more

    "...I've recently had a few issues with a harddrive dropping off occasionally. I'm not sure yet whether thats the box or the drive itself...." Read more

    Installing the drive into the enclosure was pretty simple, just screw the handle onto the front ...
    5 Stars
    Installing the drive into the enclosure was pretty simple, just screw the handle onto the front ...
    Mediasonic makes these in several different models. They have the NON-Raid version, and the Raid version of the 4 bay enclosure. The only difference is, the hardware Raid version allows you to create an array using the box itself. The NON-Raid version won't have the hardware to do it, however, if connected to a Windows or MAC, you can use software to create your raid array in the enclosure. I only mention this to be thorough, as I have no interest in Raid.When my Western Digital Black 2TB 7200 RPM SATA III drive was in a Windows machine, I partitioned it into two, with each partition being 1TB each, actual size around 950GB. Installing the drive into the enclosure was pretty simple, just screw the handle onto the front of the drive, pop the bay doors open, luckily we didn't need HAL to do that for us. Remove the pressure plate, stick the drive in, replace pressure plate, close the bay doors. Plug in your USB cable or ESATA cable, plug in the power and go.I feel the need to mention though however, if your planning to use ESATA, please understand that most onboard ESATA ports do not support port multiplier. If you fully populate the enclosure with 4 drives, in order to see 4 separate drives load in your OS, you will need to have port multiplier ability, which usually isn't found in motherboards, so you will have to purchase an ESATA card to put in your machine that does support it.However, if your going to be using the USB connection, you don't have to worry about that. I have my drive enclosure plugged into my router via USB. This enclosure has a SYNC button and an INTERFACE button. The enclosure selects USB by default, but if you need ESATA, you will have to press and hold the SYNC button to make your choice. Also, the enclosure has a built in sleep features.By holding down the Interface button, you can select which mode you want. When the interface indicator is blue, it means that when computer is powered off, the enclosure will power off in 15-seconds. And if you turn you computer back on, the enclosure won't come back on. If you want the enclosure to be in perfect sync with your computer, press and hold the INTERFACE button until the indicator is orange.Since I am using this with my router, I need my files to be able to be accessed at all times by any computer on the network. So to make sure the enclosure stays on no matter what, I had to hold the INTERFACE button each time until I turned the indicator completely off, hence clear. This way it will stay on until I hit the power button to turn it off, or the power goes out. Another thing this enclosure has is a smart fan feature.You are offered three levels of fan modes that you can either set manually, or set to smart auto. Fan speed 1 is very loud, like a freight train, but provides the most airflow. Fan speed 2 is a lot less noisy but is noticeable. And Fan speed 3 is silent. I keep my fan setting on Auto, and it never razes the fan speed beyond fan speed 3. So lets talk about file transfer speeds...I have a Netgear N600 WND4500-V3 router. I did some research into Readyshare and learned that the software in the router has a speed limiting bug in them that limits the speed you will get in file transfers. In other words, don't expect 5GBPS on USB 3.0 cause thats not going to happen. Also, your going to loose some in the transfer link between the drive itself and the enclosure, before its sent to the router, then finally to your computer on your gigabit network.For a speed reference, when I plug my Cannon A2300 camera into my notebook computer using USB 3.0, my file transfer speed is 10 megabytes per second. When reading from my new drive enclosure, copying a 4.1GB file to my notebook, I am getting 13.8 megabytes per second. However, when transferring that same 4.1GB file to my drive in the enclosure, I get around 14.5 megabytes per second.Usually in most cases, read speeds will exceed writing speeds, at least it does with SSD drives and other based flash drive media. But with this 7200 RPM mechanical drive that has 64MB cash, it seems to like writing more then it does reading. I have got to believe that this is somehow related to the 64MB cash buffer, but I could be wrong. I also love the pretty blue lights on the drive, although they might be too bright if you have this placed in a bedroom or movie room.So far I haven't had any trouble with it, and setting up Readyshare was super simple in my router configuration. Also the build quality of the box is pretty solid, it weighs a lot more then I thought it would. No doubt most of the weight is in the PSU and the metal casing of the enclosure. Very little plastic is on this thing and thats good. As long as you know how to set this up, it should work for you.5 out of 5UPDATE: Dec 2nd 2017Since I have owned and have been running this box for a year now, I wanted to give an update on how its doing. I have still been using the same hard drive, in my enclosure, and have not added any new drives to it. This unit has been running strong the whole year, and I haven't had any problems with it. I am able to access my files whenever I want to without issue. We have had a few power outages since, and all one has to do is hit the power button to turn it back on and wait for the drive/drives to spin up.I never did cover up the blue LED's that seem to bother most people. Again the box is located in my computer room, not my bedroom, so it doesn't matter to me. I do notice a slight build up of dust, around the exterior fan casing, I have not cleaned the box out with compressed air yet, but I probably should do that soon. I run an air filter machine in my computer room, which I hope, reduces the amount of dust that builds up, in my electronics.Some have also talked about replacing their internal fan to something much quieter. You can do this, but please note that the box uses a 2-pin fan connection which is not standard. So, you would more then likely need a 2 to 3 pin fan adapter, in order to use a 3rd party fan. I still to this day highly recommend this enclosure, and I still keep it at a solid 5 out of 5 stars!UPDATE: Dec 1st 2018Here we are yet another year of use on this box. I have to say, putting aside speed limitations with my setup, I've been really happy with this unit. The most important aspect of something like this, is that its reliable, because you want your files to not only be safe, but you also want to be able to access them whenever you want. I am happy to report that after 2-years of use, this box has been very reliable, and I haven't had any issues with it.I really like those Western Digital Black drives, they seem to be reliable as well for this use. I did end up blowing out the rear fan last year, only had to do that once. And its probably about time for me to clean out the fan again since its been another year, I'll get to it eventually lol. Oh and thats another thing, I've just proven with just some miner air filtration in the room, and some once per year maintenance, that fan has been lasting 2-years without fail.Additionally, none of the lights on the box have failed yet that I can see. Sometimes when you get those cheap LED's they will fail quickly. I haven't had any problems with this box so honestly, 99 dollars still to this day, and 2-years of service with more on the way, I think that is a great deal. Someone asked me about RAID recently. Again, as I've stated in this review, you can't setup hardware RAID with this box. If you really need RAID, its best to get the RAID version of this box.https://www.amazon.com/Mediasonic-ProRaid-HFR7-SU3S2-Drive-Enclosure/dp/B0757YTWS7/ref=sr_1_2?ie=UTF8&qid=1543555136&sr=8-2&keywords=mediasonic+probox+raid
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    Top reviews from the United States

    Reviewed in the United States on April 4, 2014
    Model: HF2-SU3S2Verified Purchase
    8 people found this helpful
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    Reviewed in the United States on July 31, 2019
    Model: HFR2-SU3S2Verified Purchase
    25 people found this helpful
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    Top reviews from other countries

    Translate all reviews to English
    imfallen_angel
    5.0 out of 5 stars I've had 4 Mediasonic 4-bay boxes for over 10 years, and only had to replace one.
    Reviewed in Canada on August 2, 2023
    Model: HF2-SU3S3Verified Purchase
    3 people found this helpful
    Report
    Doccus
    5.0 out of 5 stars worked perfectly out of the box (once drives were installed, naturally!)
    Reviewed in Canada on May 4, 2023
    Model: HF7-SU31CVerified Purchase
    One person found this helpful
    Report
    ....
    5.0 out of 5 stars Very Quiet, Works with S.M.A.R.T Data
    Reviewed in Canada on January 10, 2022
    Model: 4 Bay Raid USB 3.1 Type CVerified Purchase
    carlos vazquez
    5.0 out of 5 stars Buena compra pero
    Reviewed in Mexico on April 25, 2021
    Model: HF2-SU3S2Verified Purchase
    2 people found this helpful
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    Alan C
    1.0 out of 5 stars Hot and bothered
    Reviewed in the United Kingdom on March 30, 2021
    Model: HUR5-SU31CVerified Purchase
    One person found this helpful
    Report