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STARTECH > 
Item#: N82E16817707174

StarTech SAT3520U2ER Aluminum 3.5" Silver eSATA USB Dual SATA External RAID Hard Drive Enclosure

  • 3.5"
  • USB2.0 & eSATA
  • Up to 1.5TB
  • Aluminum
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Learn more about the STARTECH SAT3520U2ER

Model

Brand
StarTech
Model
SAT3520U2ER

Spec

Color
Silver
Size
3.5"
AC Adapter
Yes
Material
Aluminum
Internal Interface
SATA I/II
External Interface
USB2.0 & eSATA
Maximum Capacity (per Bay)
Up to 1.5TB
Specifications
Supports JBOD, RAID 0,1, Spanning (JBOD or BIG) + SAFE33/55
Features
This Dual SATA External Hard Drive Enclosure delivers the ideal external RAID solution, allowing you to install two 3.5in SATA hard drives, connected to the host computer through either eSATA or USB 2.0.
For true eSATA convenience, the enclosure features built-in port multiplier support, allowing both of the installed Serial ATA drives to be connected to the host computer through a single eSATA cable.
A versatile external storage solution, the enclosure supports any 3.5in SATA hard drive up to 1.5TB in capacity for a combined total capacity of 3TB, and can be connected to a computer through USB 2.0, if an eSATA connection is not available.
The enclosure supports multiple RAID array configurations including RAID 0, RAID 1, BIG(JBOD), SAFE33 & SAFE55 - allowing you to configure your external drives to best suit the application.
To help protect installed SATA hard drives and their valuable data content from in-transit damage, the enclosure features a sturdy aluminum casing that also enhances drive heat dissipation for a cooler operating environment.
To provide further cooling for installed SATA hard drives, the enclosure features a built-in 50mm fan that re-distributes the heat build-up generated as a result of typical drive operation. This is especially important when using Terabyte hard drives, and faster “spinning"" drives (i.e 7200 RPM), as it can help optimize drive operability and in turn preserve stored data integrity.
An out-of-the-box external RAID or USB 2.0 storage solution, the eSATA/USB Dual External RAID Hard Drive Enclosure includes both eSATA and USB 2.0 cables, as well as the necessary power adapter.

Manufacturer Warranty

Parts
1 year limited
Labor
1 year limited

Quick Info

Warranty

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


Customer Reviews of the STARTECH SAT3520U2ER

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  • Jeff F.
  • 8/15/2011 9:58:57 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsWorst RMA service ever!

Pros: Did what it was supposed to while it worked.

Cons: Had 2 identical 2TB drives in a RAID 1 array. The array would constantly need to be rebuilt, the enclosure would mark one of the drives as "out of sync" and do a completely rebuild about every other reboot of the computer. At first I though it was the drives, but I replaced them both with a different brand and the problem persisted.
Unit died after 9 months and Startech would not honor the warranty!

Other Thoughts: After the unit died I contacted Startech. At first they were very helpful and quick to respond. However, once they found out that they didn't have any stock of my enclosure things changed. I was told a product manager would be in contact with me. I waited 3 weeks after that with no word from Startech. Finally after several emails to them I got a responce and was basically told "too bad, you can either downgrade to a non-RAID enclosure or we won't replace the defective unit". When I told them I would not downgrade, if anything I expect an upgrade after waiting so long, they told me they wouldn't do anything for me and cut off communication.

I will never buy another Startech product again!

Did you find this review helpful? Yes No

  • Aaron W.
  • 8/12/2011 7:51:30 AM
  • Tech Level: Average
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsWorks Good after figuring out the DIP Switches

Pros: Easy Setup after you figure out the DIP switches.
Hardware RAID 0 & 1
Software is reasonable
Good price
Reasonably fast (I'm using 3Gb/s eSATA, I'm sure it's slow as molasses over USB 2.0 as all these things are)

Cons: Manual leaves a lot to be desired. Not only is it wrong with respect to the DIP switches and the reset button, but it doesn't really explain how to use the box or what to expect when you fire it up. I can see how a lot of people might think it's broken. I probably would have pulled my hair out and ended up returning it if not for the tips I found here. One star deduction for the worthless manual.

The fan is a bit noisy. I have it in a server room so it doesn't bother me, but I don't think I'd want this thing on my desktop. It has a switch that allows you to turn the fan off, but of course, that has implications on the cooling.

Other Thoughts: As already pointed out, toss your manual & download the latest manual and use the DIP switch chart in it. Ignore the DIP switch numbering that's printed on the switches. Switch 1 is the closest to the reset switch.

Also, the manual instructs you to press the reset button when changing switches, and it gives this instruction BEFORE it tells you to apply power and turn it on. That doesn't work, you need to turn it on.

Once you fire it up in Hardware RAID 1 it will go through a RAID build, using one of the drives as the master and mirroring it to the other one. On my box, with a pair of WD20EADS 2TB drives, this took about 9 hours. Then it spent almost that long in a Verify cycle. All this happens automatically, and you may not know it's even happening unless you run the software.

Which brings me to another point about the manual. It implies the software is only used when the switches are in GUI mode. Not true, although some features are disabled it's still functional and useful

Did you find this review helpful? Yes No

  • Samuel L.
  • 7/19/2011 11:12:23 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

3 out of 5 eggsCant get it working

Pros: Nice design
Supports all RAID configurations I was looking for
Decent price
Good materials

Cons: Cant get the thing to work!

Other Thoughts: I will update this if I can get it to work. Ive had this thing for weeks and tried to get it going a few times. It worked with a single drive but when I put the other in nothing worked...now single doesnt work either. Going to try TechTim's suggestions

Did you find this review helpful? Yes No

  • Anonymous
  • 6/16/2011 7:16:40 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month

4 out of 5 eggsGood Enclosure, Pain to Setup

Pros: Holds two 2TB drives, works like it says it does, has eSATA, runs cool

Cons: Tests your patience.

Other Thoughts: I purchased this because it was the most cost effective option with RAID 1 and eSATA. The first one was defective, no big deal, it happens. The second one just would no cooperate. I read everyone's posts on dipswitches and whatnot, and still was fighting with it to see both drives. I ended up finding the following directions from a blog post and it was what I needed. I followed these directions to a T and it worked and has been working since then.
1. Like everyone says, download the latest manual from StarTech's site.
2. Set dipswitches on JBOD.
3. Insert FORMATTED drives into enclosure.
4. Connect to computer via USB. (You can change it to SATA later).
5. Power on.
6. Press and HOLD reset switch.
7. Ensure enclosure sees two separate drives.
8. Change dipswitches to GUI or RAID1.
9. Press and HOLD reset switch.
10. Format for RAID 1.
11. Leave overnight, it takes a LONG time to build.
12. Swap USB cable for eSATA cable.
13. Begin to use.
Good Luck!

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

  • Mark B.
  • 5/21/2011 7:47:04 PM
  • Tech Level: High
  • Ownership: less than 1 day
  • Verified Owner

3 out of 5 eggsEven harder to set up than other reviews said

Pros: This unit is cheap, and appears to work once I FINALLY got it set up (documentation is nightmare, see Cons).

Cons: I had even more trouble than I expected, having already read the other reviews here that indicate mis-labeled DIP switch and wrong documentation. My own setup experience:

I wanted this set up as RAID1.

1. Downloaded the StarTech manual from their site, and sure enough it didn't match the shipped manual. Followed the online manual, as suggested here.

2. Also confirmed my DIP switches 1 through 4 were labeled backwards, as others reported.

3. Given that, I set the DIP switches for RAID1 and did what the manual says: "press the Reset Button to save changes". I went through this three times. In every case, the unit came up with JBOD policy, not RAID1. Web search turned up the suggestion that I needed to "hold the Reset button for a few seconds." Tried that repeatedly, still stuck at JBOD. So then I took off the cover and pressed the Reset button (briefly) WITH THE UNIT POWERED ON. Previous tries had been powereed off (manual never said power on). Immediately got

Other Thoughts: Another annoyance: The StarTech manual doesn't tell you that there's a password (default is 'admin') on the 57xx SteelVine Manager GUI. I had to download the manual from the RAID chipset manufacturer (Silicon Image, Inc.) to find that out.;

Did you find this review helpful? Yes No

  • George W.
  • 5/21/2011 11:38:14 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week

4 out of 5 eggsDisable windows Matrix storage

Pros: fast, small, cool, silver?

Cons: On my Lenovo y560 I had installed Windows Matrix storage technology and transfers would ALWAYS HANG... So I uninstalled that and rebooted... Now it is super fast! When using ESATA, both drives wont show due the sata chip in the y560 not supporting port Multiplier Or pm(but you can use raid1!) but will when connected by usb...despicable manual(completely different from theirs on their site for jumper settings)

Did you find this review helpful? Yes No

  • Steve Z.
  • 5/15/2011 7:01:54 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

1 out of 5 eggs2 of 2 defective

Pros: Could be a good tool if they worked.

Cons: I am just getting ready to return the second enclosure. After wasting many many hours trying to make the device work I finally was able to confirm that a problem exists somewhere in the enclosure connections. The same problem occurred with the first one. I spent a lot of time on the phone with Startech tech support, but there is nothing you can do when there is a defect in the hardware. So I'm giving up on Startech and will try some other brand.

Other Thoughts: This enclosure is exactly what I wanted - dual drive with hardware RAID 1 support for storing backups. It's a shame their quality control is so lax. The first enclosure had the DIP switches labeled backwards and caused no end of problems until I read the feedback here and learned about the label problem. The switches were labeled correctly on the second unit, but it had connection issues like the first one. So it's gong back and I'll have to find something else.

Did you find this review helpful? Yes No

  • Cory W.
  • 5/6/2011 5:25:08 PM
  • Tech Level: High
  • Ownership: less than 1 day
  • Verified Owner

5 out of 5 eggsThe trick to getting RAID 1 to work

Pros: Perfect RAID 1 via USB.

Cons: The manual AND the DIP switches that ship with the unit are BOTH wrong.

You need to:

1) Download the updated manual from the web site (you'll notice right away the DIP switch chart is different).

2) In addition, you need to REVERSE the order of the switches. They are labeled on the unit with switch 4 being the closest to the reset switch. THIS IS WRONG. Switch 1 is in fact closest to the reset switch.

If you follow the downloaded chart with reversed switching, it works.

Did you find this review helpful? Yes No

  • Eric A.
  • 5/4/2011 8:32:09 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsGood raid solution for home use

Pros: cost, build quality, easily setup

Cons: Cooling - I also removed the front cover to allow more airflow. Instructions are clear, but the dip switches were wrong.

Other Thoughts: I'm satisfied with this product. I was able to connect it to the usb port on my new netgear router and create a network share with ease. I also can connect to any computer and monitor with the software and verify the drives are mirrored etc. Setup was easy with two 500gb drives. I did have the dip switch issues like others have stated, but it was a two second fix.

Did you find this review helpful? Yes No

  • Timothy C.
  • 3/11/2011 1:31:47 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggs2nd look

Pros: This device works as expected, but as described by Cameron, the tech support is completely right on the dip switches, that are in reverse.

Cons: Had a lot of issues setting this up hardware raid cause the dip switches and the instructions werent the same. This is a quote from Cameron's review: " Manual is messed up. For minimum hair pulling:

1. Download the latest manual off the site

2. If your drive isn't working as desired (I had trouble setting up RAID 1) then read the following:

The switches to configure the device are numbered 1-4, but this may be wrong. Try reversing the code. The guy in their support department says 1 is the closest switch to the reset button (labeled 4 on mine) and 4 is the farthest switch to the reset button (labeled 1 on mine)."

And i will verify that i had to do this with my unit as well.

Other Thoughts: Software works great for monitoring and verifying the raid. If you have it set to GUI mode, software takes care of everything for you. I was looking for a hardware raid, and the software is great for monitoring and managing the raid to verify its integrity.

Other then the dip switch issue and bad instructions in the box, a great unit to go with!

Did you find this review helpful? Yes No

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Item#: N82E16817707174
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