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Item#: N82E16817576009

Mediasonic HF2-SU3S2 3.5" Black SATA I/II/III USB3.0 & eSATA 4 Bay External Enclosure

  • 3.5"
  • USB3.0 & eSATA
  • Up to 4TB
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Mediasonic HF2-SU3S2 Pro Box is a 4 Bay Enclosure for 3.5" SATA I / II hard disk drive. It supports 4 HDDs of different brand and capacity up to 2000GB per drive. Dual eSATA and USB 3.0 external interface enable blistering fast data transfer speed of up to 3Gbps and 5Gbps respectively, and switching between USB and eSATA is as simple as pressing one button. (Motherboard's SATA port MUST support Port Multiplier in order for your computer to recognize multiple hard drive if the unit is connected via eSATA)

  • newegg HDD X 4 Supported The Mediasonic HF2-SU3S2 Pro Box supports up to 4 HDDs in a single unit, with capacity of up to 2TB per drive, providing an amazing solution for transporting data or backing up your system.
  • newegg Dual Interface Support The Mediasonic HF2-SU3S2 Pro Box supports the eSATA interface for an ultra-fast data transfer speed of up to 3Gbps and USB 3.0 interface to achieve an even faster speed of up to 5Gbps. One button interface selection allows you to choose your desired interface by pressing one button.
  • newegg Forced Convection Process The Forced Convection Process helps speed up the air circulation and heat ventilation to effectively cool the drive and whole system for a stable operation and extended lifespan.
  • newegg SMART FAN With thermal-sensor built-in, the Mediasonic HF2-SU3S2 Pro Box also comes with auto / manual modes & 3 levels of speed for best system cooling, as well as the perfect balance between thermal performance and noise level.
  • newegg Power Sync The Mediasonic HF2-SU3S2 Pro Box would power off when the computer is shut down, reducing device wear and power consumption.

Learn more about the Mediasonic HF2-SU3S2




AC Adapter
Internal Interface
External Interface
USB3.0 & eSATA
Maximum Capacity (per Bay)
Up to 4TB
Supporting OS: Windows 2000 / XP / VISTA / Windows 7, Mac OS 10.3 or later

Power Adapter: 100V to 240V

Safety Specification: CE / FCC / Rohs
Support all brand of 3.5" SATA I / II / III hard disk drive up to 4TB per drive

Transfer rate up to 5.0Gbps via USB 3.0

Transfer rate up to 3.0Gbps via eSATA

Power Sync: Power off in synchronization with PC

Forced Convection Process

Smart Fan function: Thermal-Sensor built-in, Auto & Manual mode, 3 level of speed

One button interface selection: Switch USB 3.0 or eSATA interface by pressing one button

Dimensions & Weight

8.47" (D) x 4.96" (W) x 6.53"(H)
3.97lbs. (excluding hard drive)

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 Mediasonic HF2-SU3S2

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  • Kimberley R.
  • 2/13/2014 2:38:16 PM
  • Tech Level: High
  • Ownership: more than 1 year

1 out of 5 eggsGood Idea. Bad Implentation

Pros: Worked for about a year. Quiet

Cons: Never worked well over network.
Constantly dropped connections and refused transfer of anything larger than a text file.
Slower than normal transfers.
Poor door and disk mount design. Very fiddly to add/remove hard drives
Not recommended. You get what you pay for

Other Thoughts: This was exactly what I was looking for. Unfortunately, it never worked as expected and failed to turn on after a year of operation, maybe less.
This particular enclosure wound up being more of a hassle than a solution to housing multiple hard drives. The front closure is finicky and flimsy and pops open if you look at it sideways. Hard drive mounts require tools and add time to setting up. Transferring files to/from the drives from another machine on the network caused more headaches than it solved.
I was never able to transfer anything larger than a text file successfully. Connection constantly dropped with larger files and corruption would often occur.

I'm now using 4 external hard drives until my replacement of another brand/model arrives.

I have no desire to try this brand/model again; nor would I recommend it to anyone.

Used with USB 2.0 on a mid 2009 Mac Mini

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

  • Steve V.
  • 1/24/2014 6:42:58 PM
  • Tech Level: Average
  • Ownership: less than 1 day
  • Verified Owner

5 out of 5 eggsvery happy with it.

Pros: this is a follow-up to prior post. after getting the usb to work, I hooked up the e sata cable and presto, it also works, but didn't initially. transfer speeds of 92 mbs from computer to mediasonic and 47 between drives within mediasonic

smart hd temps of 84, 91 and 89F on 3 disks in it after running hard

Cons: none

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

  • Steve V.
  • 1/24/2014 2:44:10 PM
  • Tech Level: Average
  • Ownership: less than 1 day
  • Verified Owner

5 out of 5 eggsso far so good

Pros: The usb connection works for me. Transfers to wd green in unit from main disk (wd black)is about 62 mb/s. From a drive in the unit to another in the unit it (both wd green 2tb) slows down to 40 mps so can't complain about that.

Cons: none at this time

Other Thoughts: have to hold the buttons down 3 seconds to get them to operate for those of us who don't read directions. nice feature once you get used to it.

I like esata better than usb 3.0 because I like to monitor smart info which you can't do in usb. so may take a little more work to get my esata working.

I like the synch power option in blue setting as I always forget to turn things off.

handles work great.

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

  • Vi C.
  • 1/24/2014 10:32:57 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggs

Pros: 1) easy to install - plug and play
2) decent performance
3) seems to be reliable

Cons: The door comes off easily and needs a little fiddling to close

Other Thoughts: I've had this box for more than 3 months now and it has been running almost non-stop since I got it. Connected via USB and recognized easily by both Linux and Windows 7. Transfer throughput is decent: with Windows 7, I can serve one blue-ray stream to my HTPC with no stutter but if I do a disk copy from one drive to another (both in this enclosure) then there will be stutter in the video playback. I don't know if my system's USB is 2.0 or 3.0 but I am happy with this setup.

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

  • Raul d.
  • 1/20/2014 5:49:49 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsMediasonic HF2-SU3S2

Pros: Getting around 375 GB per hour, thats 107 MB/sec (all kinds and sizes of files). I use the Mediasonic ProBox HP1-SS3 card. My drives bench between 70 and 140 mb/sec. No complaints but read the instructions.

Cons: None. But read the instructions.

Other Thoughts: I think about how I struggled with my old USB enclosure. No more overnight backups.

Did you find this review helpful? Yes No

  • Abbas H.
  • 12/27/2013 9:25:37 AM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

3 out of 5 eggsOK card

Pros: Good card made by mediasonic if you have only one 4 bay unit it will work as raid and none raid fit ok

Cons: This card is great but the software is bad mediasonic support told me not to use it as it has issue with software

Other Thoughts: If you only using one 4 bay you ok but once you connect second eSATA card the pc will keep rebooting and it will have issues

2 out of 5 people found this review helpful. Did you? Yes No

  • Vitaly P.
  • 12/23/2013 3:54:24 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsExcellent & inexpensive solution

Pros: Biggest pro: stacking 4 hard drives in the space formerly occupied by 2 externals, and having half as many cables cluttering up the desk. Sturdy construction, doesn't feel "cheap" at all. Always-on/power-save mode switch - very convenient, so is the smart fan sensor. Worked with my Windows 7 machine using both USB and eSata. Zero setup or performance issues.

Cons: The only issue I've had was with the door latch. It has to be closed "exactly right", otherwise it doesn't close and has a habit of flopping open. Finally stuck a piece of tape onto it, which "fixed" the problem. Mediasonic, fix the door and you will have an AMAZING external drive box!

Other Thoughts: Despite the door issues, it's a very convenient solution, and I'm buying my 3rd one in 2 years. There's nothing else in the same price range with the same options - not even close, the next alternative is literally double the price.

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

  • Robert K.
  • 11/12/2013 9:54:20 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year

2 out of 5 eggsTrouble With Mavericks

Pros: Price and simplicity
Possible Mavericks updates will make it fully functional.
Relatively quiet
Tech support really made an effort to figure out what was wrong.

Cons: Generates code -36 finder errors in Mavericks on an iMac 2013. It transfers files to the iMac perfectly, but stops transfers and unmounts on large files or folders from the iMac or from one hard drive to the other.

Other Thoughts: I went to a Voyager, which is working fine but is only designed to mount one drive. If the Mavericks updates fix the issues with this, I'll put it back in play and amend this review. If it worked right, I'd give it 5 stars.

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

  • Gust M.
  • 11/11/2013 5:33:53 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week

5 out of 5 eggsknock your socks off

Pros: I just cannot believe this little boxes works so great. I been looking for something to take the drives out of my computer and make them useable for all three of my computers and laptop. Now if one of my unit go down I can still have all my information available and because I back up my c drive on it I can reinstall my c drive in no time.
love this thing!!! Small take no room at all and when operating it runs cool. Keep you power supply in the open air because it dose run warm . PS Newegg's price is right so get one!!

Cons: I didn't get it sooner>

Other Thoughts: No need to have your drive on line until you need them. hackers cant get to them because the are off line . reduce power consumption. less heat in your computer.

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

  • John H.
  • 11/2/2013 2:25:41 PM
  • Tech Level: Average
  • Ownership: more than 1 year

4 out of 5 eggsGood but Slightly Flawed

Pros: With up to four x 2TB drives installed this unit offers great storage capacity. Setup is fairly easy , and you have two connection options (USB 3.0 and SATA). There are lots of bright lights when the backup is running. And, the ability to run RAID+O is great, and provides a backup of the backup, when the drives operate as intended (see cons).

Cons: The usint, using a USB 3.0 connection and Windows 7, seems to lose it's drive recognition often. If I power the unit down and then repower it the drive comes to life and True Image begins to run its backup. But this is hardly providing peace of mind when I have client data to regularly backup.

Other Thoughts: I would recommend this, especially if I could figure out how to insure the drive was always recognized and my automated backups were happening consistently.

Did you find this review helpful? Yes No

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