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Mediasonic ProRaid H8R2-SU3S2 RAID 0 / 1 / 3 / 5 / 10 / 50 8 3.5" Drive Bays USB 3.0 / eSATA 8-Bay External Hard Drive Enclosure

  • SATA I / II / III
  • 8 3.5" Drive Bays
  • RAID 0 / 1 / 3 / 5 / 10 / 50
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Mediasonic H8R2-SU3S2 ProRaid Eight-Bay 3.5" SATA Hard Drive Enclosure - USB 3.0 SuperSpeed & eSATA

Mediasonic H8R2-SU3S2 ProRaid is a Eight-Bay enclosure for 3.5" SATA hard disk drives. It has hardware embedded RAID to support Raid 0 / 1 / 5 / 10 / 50.

Feature

H8R2-SU3S2
  • Supports all brands of 3.5" SATA I / II / III hard disk drives up to 4TB per drive, and up to 8 x 4TB.
  • Hardware RAID controller built-in on-board
  • Compatible with Macbook USB 3.0
  • Transfer rates up to 5.0Gbps via USB 3.0
  • Transfer rates up to 3.0Gbps via eSATA
  • Power Sync: Powers off in sync with PC
  • Forced Convection Process
  • Smart Fan function
    • Thermal-Sensor built-in
    • Auto & Manual mode
    • Three levels of speed

  • One button interface selection: Switch USB 3.0 or eSATA interface by pressing one button
  • Raid Mode Support
    • Raid 0 (Spanning) JBOD
    • Raid 0 (Striping)
    • Raid 1 (Mirroring)
    • Raid 3 (Striped set with dedicated parity)
    • Raid 5 (Striped set with distributed parity)
    • Raid 10 (Mirroring + Striping)
    • Raid 50

Specifications

H8R2-SU3S2
  • Interface
    • USB 3.0
    • eSATA

  • Supporting OS
    • Windows XP / VISTA / Windows 7 / Windows 8 (with MBR enabled, supports total capacity up to 2TB)
    • Windows Vista / 7 / 8 (32- / 64-bit) (with GPT enabled, supports total capacity more than 2TB)
    • Mac OS 10.3 or later
  • Power Adapter: 100V to 240V
  • Dimensions (H x W x D): 13.8 x 6.1 x 10 inches (352 x 155 x 253mm)
  • Weight: 11lb (5.0kg) (excluding hard drive)
  • Safety Specification: CE / FCC / RoHS
  • Product Origin: Taiwan

Images

H8R2-SU3S2

What's in the Box

H8R2-SU3S2
  • H8R2-SU3S2 Enclosure
  • eSATA Cable
  • USB 3.0 Cable
  • Power cord (US Type)
  • User manual
  • Screw driver x 1
  • HDD Handle x 8

Warranty Information

Warranty Period: 1 Year


Learn more about the Mediasonic H8R2-SU3S2

Model

Brand
Mediasonic
Series
ProRaid
Model
H8R2-SU3S2

General Spec

Drive
SATA I / II / III
External I/O
USB 3.0 / eSATA
RAID Levels
RAID 0 / 1 / 3 / 5 / 10 / 50

Expansion

3.5" Drive Bays
8

System Management

OS Supported
Windows 2000 / XP / VISTA / Windows 7 (with MBR enabled, supports total capacity up to 2TB)
Windows Vista / 7 32/64 bit (with GPT enabled, supports total capacity more than 2TB
Mac OS 10.3 or later

Mechanical Spec

Power Supply
100V to 240V

General Spec

Dimensions
6.10" x 13.86" x 9.96"
Weight
11.0 lbs.
Features
RAID Mode Support:
RAID 0 (Spanning) JBOD
RAID 0 (Stripping)
RAID 1 (Mirroring)
RAID 3 (Stripped set with dedicated parity)
RAID 5 (Striped set with distributed parity)
RAID 10 (Mirroring + Striping)
RAID 50

Hardware Raid controller built-in on board

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

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

Quick Info

Warranty

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


Customer Reviews of the Mediasonic H8R2-SU3S2

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  • Sam S.
  • 12/19/2013 3:41:03 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

2 out of 5 eggsNot for sale

Pros: ease to insert Hard Drives

Cons: No real Manuals.
Randomly disconnect from computer. Randomly crashes OS. Almost NO SUPPORT.
Main recommendation from Support team - "REPLACE USB cable!"

Did you find this review helpful? Yes No

  • Sam S.
  • 12/16/2013 12:21:30 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

3 out of 5 eggsnot bad idea

Pros: good IDEA

Cons: very pour realization. very bad instruction.
periodically disconnect from computer

Did you find this review helpful? Yes No

  • Kevin M.
  • 7/4/2013 2:08:29 PM
  • Tech Level: High
  • Ownership: more than 1 year

5 out of 5 eggsWorks with 4TB

Pros: It was believed to only support up to 3TB hard drives but 4TB works flawlessly. I've been running one in it for over a month now with no problems, and the other 3TB drives are still fine after over a year of use.

Cons: The USB 3.0 cable that comes with it is way too short.

Other Thoughts: I love this enclosure. It's one of the best PC hardware investments I've ever made. I wonder if it will support the upcoming 5.5TB drives. I can't wait to find out...

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

  • Joseph P.
  • 5/27/2013 5:49:45 AM
  • Tech Level: Average
  • Ownership: less than 1 day
  • Verified Owner

5 out of 5 eggsGreat pro raid enclosure

Pros: Only had it 3 days and it is performing flawless. Very easy to setup.

Cons: LCD lights on front.

Other Thoughts: Ordered with newegg shipping and was here in two days.

Did you find this review helpful? Yes No

  • Churk L.
  • 2/27/2013 11:13:56 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsFirmware update is a Must

Pros: 8 Drive Capacity
Many Raid Level
Quiet on low fan setting
Fairly Fast

Cons: Little to no Documentation
Instruction references steps that doesn't exists

Other Thoughts: My last review was pretty negative, where I couldn't find any help or documentation on the website. I finally follow the leads of one of the review and looked into their forum section. Found a firmware update, and updated both controllers. Now I am getting a steady 60 - 70Mb write speed. Disregard the forum thread that says firmware update for raid 50 only. I am using raid 5, and I took a change to see if performance would be better since I was getting topped out at 8Mb write. And sure enough the firmware did fix the major issue.

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

  • Anonymous
  • 10/23/2012 9:22:19 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsGreat! once you read the instructions.

Pros: Single connection interface, not like the competition where they include a 2-port PCI-e card or make you use 2 connections.

No need for port multiplier to access all 8 disks

Software to monitor the RAID health, visit their forum and gram the JMicron HW RAID Manager.

Auto detect USB/Esata interface

Great if your requirements are in need of 16TB to 24 TB over a single interface.

Everything comes in the box you need, cables, screwdriver, etc

The unit auto sleeps when it detects no connection

Cons: The setup!

Reading the instructions is a must before you even put your first HDD in.

Cannot use RAID5 using all 8 disks, only option is to use RAID 50 which is 2 sets RAID 5 in RAID 0.

Bright blue LED always active for any bay that is currently occupied by a HDD, then flashes purple for read/write access

The keys are exactly the same cut as my H82-SU3S2,this means if you have one of these units your keys will work on any unit, there goes security!

Uses dual 80mm fans instead of a single 120mm (personal preference.

A bit slow to me when using 4x Samsung 750GB HDDs in RAID 0 via USB3 or Esata, although Esata seems to handles a bunch of smaller files faster than USB3 such ad a folder with 1000 JPEGs.

No SSD support but i knew this a long time ago

Other Thoughts: I brought the H82-SU3S2 back in may and wanted this to run in RAID 0 to back up everything and i wanted it to show up as a single HDD.

On initial setup i could not get the thing working for hours, it would just turn on then a few seconds later turn off, then i got a bright idea "lets try reading the manual" lol. In order to use certain modes the HDDs must be loaded in preselected bays or the unit wont work. I had 4 HDDs and could not use RAID 0 when i loaded bays 1-4 to use that mode, i had to use bays 1,2,5, and 6. Now if i wanted to use 2 sets of RAID 0 then i could use bays 1-4.

The unit lost my RAID 0 when i moved it from my Windows 7x64 box to my WHS V1 unit the first time around, received "no active partitions found error" after checking HDD management i fount it was split in 2 partitions, both not active and needed to recreate a single partition again.

Seems a bit slow to me when using 4x Samsung 750GB HDDs in RAID 0. Although all transfers started at 80MB/s using a 4GB video file the speed dropped in a few seconds. Using a PCIe X1 card with VLI chipset and latest drivers for USB 3 it dropped to 40MB/s while transferring data. On Esata using Intel ICH9 AHCI controller it leveled off at 30MB/s, same for the onboard JMicron JMB36X controller and 60MB/s using Silicon Image 3132 PCIe X1 card. All using latest drivers along with the unit using the latest firmware for the RAID 50 fix from Mediasonic forums. I transfered the same file back to my desktop at 120MB/s though. About 45 minutes to transfer 180GB of 1786 files over Esata Sil 3132 chip at 65MB/s, not bad at all.

I still cannot believe that Newegg shipped this thing from CA to NY in the original retail box, the same thing was done when i ordered the H82-SU3S2, this box came in better condition though, just the adhesive seam came loose.

Im still waiting for HDD prices to become sane, i need 8 2TB drives to fill this thing ASAP.

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

  • Blake W.
  • 7/20/2012 11:35:09 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsHoped for easier...

Pros: Lightweight, Small Form Factor, USB 3.0, eSata, Raid 50, & Plug n Play Setup.

The caseing is Plastic yet looks and feels nice, so expect it to be lightweight. To the users below, you must read the manual and specifications this unit does not support 8 disc raid 5 configurations. You must do a raid 50 configuration to utilize all 8 drives in a single drive. I read this so I respond accordingly. Running 6 (was 8...) western digital red drives, getting on eSata/USB 3.0 80-100mb's writing, and 150-200mb's reading in the raid 50. So raid 50 is a plus.

Very touchy on the S.M.A.R.T errors, if your drive reports ANY, the enclosure marks the drive as bad. I count that as a plus that way your data can be safe. May work both ways thoe... then again if you want to replace a bad drive your just asking for data failure :)

Cons: No Interface to Manage the Unit, no 100% way to read S.M.A.R.T data.

USB 2.0 speeds were only 20-30mb's a second. Not sure how normal this is.

Other Thoughts: If you expierence Disconnects/Reconnects of the drive, VERIFY all drives are 100% S.M.A.R.T Pass, no warning parameters. If you are using Etron USB 3.0 chipsets, give up; its a terrible Chipset, thats my lot. Get NEC for USB 3.0 Chipset.

You CAN read the S.M.A.R.T data of these drives, IF YOU USE raid 5 (not raid 50) with USB (not eSata), you must use a program called HD Sentinal, hope this helps someone wanting to see this data on there drive. Otherwise the data is unavailable with any other configration I tried.

I still rate it a 5/5 becuase the unit essentially hasn't caused me any issues and is exactly as expected.

PS. If you need support, their forums are great and they do have phone support, its on the non canada website for MediaSonic.

7 out of 8 people found this review helpful. Did you? Yes No

  • Andrew Z.
  • 7/15/2012 2:26:23 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year

5 out of 5 eggsAwesome 8-Bay RaidBox

Pros: Does what its suppose to do!
It has a Key Lock with 2 set of keys as well as a Kensington Security Slot. No one can easily take your data.
Good speeds and good quality build.
It has a great sustained transfer rate.

Cons: The only Con i would give it is not being able to do Raid5 with the entire 8 drives but i knew this and have no other choice. They offer Raid50 which is 2 sets of raid5 in 0 which is not bad as all and almost like Raid6 with the ability to sustain 2 drive failures as long as it is not in the same layer.

Other Thoughts: I wish the USB 3.0 cable was at least 1' Longer.
I will Be putting 8 x 3TB Seagate 7200RPM Drives but for now i have 8 2TB (4 WD black and 4 WD Green)
One drive is 2.5TB I (am just testing.) Keep in mind you can always raid with different capacities but will only use up to the smallest drive capacity across each disk.

8 x 2TB in RAID50 gives you 10.9TB in a NTFS formated disk. (To calculate your estimated size just subtract 2 disk size after format size for mine =
2TB in Windows =1.82TB
1.82 * 8 = 14.56TB
14.56-3.64= 10.92TB (Subtract 2 drives worth)
So if you had 3TB drives you would have=16.32TB
4TB drives (if it works, which it should)= 21.6TB

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

  • Anonymous
  • 6/6/2012 1:50:04 PM
  • Tech Level: Average
  • Ownership: 1 day to 1 week

5 out of 5 eggsSo far so happy

Pros: Easy to setup, works as advertised, hardware raid within the box itself means I can plug and play into any computer/notebook. No hiccups on 500gb+ transfers

Cons: Not as fast as other RAID boxes (but still far faster than any single internal HDD), but that's the compromise I was willing to make in return for ease of connectivity to any computer via esata or usb3.

Other Thoughts: Eight 2TB Seagate enterprise drives in a single RAID 50 array working smooth as butter so far. People complaining about their eight drives being split into two 4-drive arrays should have read the manual. It clearly states that RAID 5 will give you two arrays, whereas RAID 50 will give you one big one. RAID 50 is better anyways.

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

  • Derek C.
  • 4/22/2012 11:42:40 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsLoving it!

Pros: It sets up a raid 50! It reads and writes fast and I'm getting super fast speeds through the USB 3.0. Runs cool and has yet to give me a single problem.

Cons: The other reviews make sense if all you want is a raid 5, but the box does a lot more than just that.

Other Thoughts: I would love to see this box be able to set up a RAID 6. This would help with a 2 drive failure.

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

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