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Sans Digital 8-Bay eSATA RAID 0/1/10/5/JBOD Tower Storage Enclosure w/ 6G PCIe Card TR8M+B (Black)

  • SATA
  • 8 x Hot-Swappable 3.5" Drive Bays
  • RAID 0, 1, 10, 5, 5+spare, Spanning and JBOD (via Bundled RR622 RAID Controller Card)
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
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TowerRAID TR8M+B - Eight-Bay eSATA RAID 0 / 1 / 10 / 5 / JBOD Performance Tower with 6G PCIe Card

The TowerRAID TR8M+B is a compact RAID tower utilizing the latest SATA port multiplier feature, where one single eSATA cable connects to eight SATA hard drives. Bundled with a high-performance PCIe 2.0 x1 RAID controller card RR622, its RAID 5 performance is capable of reaching over 250MBps. Online expansion is a feature included in the controller card so that RAID could be expanded without the need to recreate the storage space or erase the existing data. Advanced monitoring functions include real time hard drives health status and e-mail notification for critical events.

Designed with easy installation in mind, the TR8M+B is designed with eight hot-swappable tray modules so that hard drives could be removed and installed with ease. The included dual-port eSATA 6Gbps PCIe 2.0 x1 RAID controller card allows the connection of eight hard drives using only two cables, while all drives could be configured into single or multiple RAID arrays, providing over 200Mbps in performance.



  • Bundled with RR622 RAID controller card for over 250Mbps RAID 5 performance.
  • Supports RAID 0, 1, 10, 5, 5+ spare, spanning and JBOD.
  • Backward compatible with PCIe 1.0.
  • Supports online expansion to expand capacity without the need to recreate the RAID volume and erase the existing data.
  • Built-in real time hard drive health monitoring and e-mail notification for critical events.
  • Supports PC, Linux and MAC OS, including Windows 7 and Snow Leopard.
  • Accesses eight hard drives using only two cables.
  • Host interface: eSATA with Port Multiplier.
  • Drive interface: 8 x 3.5in. inch SATA.


Learn more about the SANS DIGITAL TR8M+B



General Spec

External I/O
eSATA (via Port Multiplier)
RAID Levels
RAID 0, 1, 10, 5, 5+spare, Spanning and JBOD (via Bundled RR622 RAID Controller Card)


3.5" Drive Bays
8 x Hot-Swappable

System Management

OS Supported
Supports PC, Linux and MAC OS, including Windows 7 and Snow Leopard

Mechanical Spec

Power Supply
250W (90V-264V)

General Spec

5.9"W x 13.4"H x 13.4"D
13.0 lbs.
Form Factor: Compact Tower

Maximum Capacity: 32TB

Cooling Fan: 4.7" Ball Bearing Fan

Status Indicators: Status and Power LEDs

Bundled with RR622 RAID controller card for over 250MB/s RAID 5 performance.

Supports RAID 0, 1, 10, 5, 5+ spare, spanning and JBOD.

Backward compatible with PCIe 1.0.

Supports online expansion to expand capacity without the need to recreate the RAID volume and erase the existing data.

Built-in real time hard drive health monitoring and e-mail notification for critical events.

Accesses eight hard drives using only two cables.


Package Contents
8 x Hard Drive Trays
Power Cord
2 x eSATA Cable
RR622 Dual-Port eSATA 6Gb/s PCIe 2.0 x1 RAID Controller
Screws (1 set)
Quick Installation Manual & CD

Quick Info


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

Customer Reviews of the SANS DIGITAL TR8M+B

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  • Jonathan L.
  • 4/17/2014 3:28:01 PM
  • Tech Level: Average
  • Ownership: less than 1 day

1 out of 5 eggsDOA

Pros: Can't tell. Doesn't work.

Cons: We purchased this for data storage in our lab. We plugged in 4x4TB WD Enterprise drives in the bottom 4 slots. We installed the PCI-E card and then plugged the tower (both cables) into the card. When the tower started up. The PC Link 1 and 2 lights lit up in addition to the power light. The light for harrdrive 1 also lit up but the other lights remained off. The BIOS screen for the PCIE card never showed up, but Windows detected the card and successfully installed the driver. Beyond this point, nothing worked and the tower was never recognized. The bundled web interface does not detect any of the harddrives that we have slotted in.

Did you find this review helpful? Yes No

  • Paul R.
  • 3/20/2014 10:38:44 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsNot to bad

Pros: Good build quality at a good price. Not many other 8bay SATA3 devices out there (currently) and this seems to have the raid card (RR622) that everyone recommends. Has fairly good alerting and even email alerts for events related to the controller. Fairly quiet and it has a blue fan.. so it has that going for it.

Drive bays are easy to take in and out and have a good latching mechanism.

I have pushed about 6TB to the drive over the past day without issue.

Cons: Only con so far is that the SATA card management software could be more friendly, and its password you can apply is limited to 8 characters. In theory you can have this network accessible but they wisely give you an option when installing to not allow it to be network accessible any only viewable from localhost.(thats not a con)

The SATA card also caused problems for my bootup since my system drive is a RAID0 on the MOBO's RAID controler. However they do acknowledge this problem and give you instructions on how to resolve the issue with a BIOS update to the controller card.

Other Thoughts: My setup is 4 WD30EFRX (12TB) in the top bay in a RAID5 (9TB) ending with 8.18TB usable. This is all connected to a windows 8.1 Box currently.

The price is right and you're getting SATA3 so you don't feel like you're wasting money when you buy drives that you can't get the full potential from.
A big driver for me to get this was the ability for "Online Expansion of RAID arrays" Its a bit hard to figure out how you do this as the interface is as clear as mud. I did some playing around and if you basically recreate the raid as either a different RAID config or the same but including the new drive then it gives you the option to write back the data on the array.

Also it should be noted the card and RAID housing has 2 eSATA ports, these correspond to the top and bottom 4 bays, to use all 8 bays you need to use both eSATA cables.

How this went for me was it sat at 0% for about a 15 to 20 min eventually going from an ETA of 20 hours to around 67 hours with only 3-5gb added to a 9TB array. (though it might be doing all 9TB so it might make sense)

So i gave up on doing that and just deleted my 3 drive RAID5 array and remade it as a 4 drive RAID5, and what happened? the files were still there ?_? all i had to do was expand the partition.

Would i do this outside of a test... no, don't play around with your files unless you have a backup... so if you're going to build a 9TB array and hope to expand it down the road you should have a place to move that 9TB to incase you blow it up.

So my future plans are to use the remaining 4 bays for a second 4 drive RAID5, in theory this is the best idea since ti gives you some leverage in moving some of your files to any unused space in the other array if you need to do work on the other.

I also had to do the "fix" to disable booting from the raid controler for this setup as it conflicted with my RAID0 SSD and would not allow the system to boot with the drives powered on... even when selecting the correct boot drive from the UEFI boot screen.

Also a note i ran into an issue where when pushing files the drives basically locked up with full "activity" but nothing being written, this annihilated the array but i was able to recovery after a reboot. I traced this to a faulty mobo on the computer i was using as i have been experiencing this same issue using windows 8 storage spaces. I thought initially this was a storage spaces issue but it seems more like its a north/south bridge controller issue on the mobo

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  • Abbas H.
  • 12/27/2013 9:34:07 AM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsGood unit for intel users

Pros: This is a extreamly nice havey built unit with great quality
very very easy to use

This unit works great for intel users but AMD Users will run into problems TRUST ME troubleshoot this unit for 2 months non stop

Cons: Cons for this unit is
1- Does not work well with AMD system
2- card that come with this unit is BAD
3- buy RR 642L to aviod issue or get
4- SYBA SD-SA2PEX-2E PCI-Express x1 SATA II (3.0Gb/s) Controller Card
5- The hardware motherboard of the unit works very well with Intel system as any Port muliper card will work but AMD with 64bit wont
6- This unit is not made by Sans Digital
7- all Sans Digital unit come with Rocket Raid cards and most of them not very clear

Other Thoughts: Other thoughts are it hard to say if this unit is great or not but all intel users have no issue but AMD users never been happy with it so do you search properly

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

  • Wilkum S.
  • 12/4/2013 12:45:21 PM
  • Tech Level: Somewhat High
  • Ownership: less than 1 day
  • Verified Owner

4 out of 5 eggsRunning as JBOD on MacPro

Pros: Lots of storage, quiet, cool light. Would be 5 star except read below.

Cons: could not get drive bay 1 to show up. Looked inside the unit and saw the main power button cable was in front of the back plane. Used a ruler to push it down, and now all is good.

Other Thoughts: Have 8 drives all showing up on MacPro. Using a Firmtek port multiplier card (not the original card that came with the unit) because I am on a Mac. Seems to be nice and fast!

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  • 8/23/2013 5:51:39 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year

4 out of 5 eggsWhen it finally works, it works well.

Pros: Adds 8 drives to any PC with another PCI-Express 2.0 x1 Slot to spare.

Cons: Included HighPoint RocketRAID 622 Card won't run in Debian 7 or Mint 15 without rewriting the drivers.

Other Thoughts: When I first bought this I has the displeasure of a malfunctioning bottom multiplier board in the enclosure. It took me five months to have it replaced. I spent the first month in emails with a RMA agent who walked me through every test I had already performed and mentioned in my initial report before finally agreeing with me a solid month later. It took four months to arrive at my office.

When I replaced the board the enclosure worked, but still had one issue that was related to the included card. During a large file transfer the multiplier board would do a re-sync every few minutes which would lock the computer up. I finally figured out that I needed the newer 1.3 drivers that were on the HighPoint website as the ones included on the CD were horrendously out of date. Once I had the drivers updated to 1.3 the enclosure worked fine.

I did try using the included raid features but learned quite fast that it wasn't a good idea. Raid 0 overloads the card, Raid 5 shouldn't be attempted for any reason.

The card and enclosure work best on Windows 7. Linus support isn't. The drivers aren't in the Linux distro and compiling them on anything newer then Debian 5 won't. Rewriting the drivers may work but due to DMCA the drivers have to be rewritten by the end user and the rewrite is a few hundred lines. Needless to say, I'm using this in Windows 7 x64. I hope newer drivers are written for Linux but I'm not holding my breath.

All in all, a good purchase. I wish I had opted for one that had USB 3.0 so I could break away from the included card for a more universally accepted protocol.

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

  • Adam B.
  • 7/1/2013 9:56:02 AM
  • Tech Level: High
  • Ownership: more than 1 year

4 out of 5 eggsWorks, but needs settings

Pros: Cheap RAID, status notifications.

Cons: Requires specific settings for best performance.

Other Thoughts: Had trouble with enclosure crashing during transfers, but found the fix. Grab a flash drive and the HP USB Disk Storage Format Tool and some DOS files. Then download the latest BIOS for the card from the Highpoint website. Format the flash drive so it is a bootable dos disk (via HP tool, do google search) and then copy Highpoint files over. Boot off the flash drive and go to the folder where you copied the files. Run "load.exe -c rr622.v11" (or whatever the bios file is named). You will see a menu with some options. DISABLE the following: INT13 and Reallocate EBDA. Hit F10, flash the bios, reboot. Now setup your card in the OS. Make sure to grab the Web GUI too. Enable email notifications so you know if you are having any disk problems. Enjoy.

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

  • Anonymous
  • 5/28/2013 7:40:48 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week

1 out of 5 eggsNot working!

Pros: Easy to install

Cons: No troubleshooting tips in documentation

Other Thoughts: The hard drives are not recognised and I have noticed that the from cover does not close all the way..In addition, the top part about the cover juts out. Does that mean it's damaged? Booting up, RAID config starts, but it complains there is nothing to configure since there are no hard drives. UGH

Manufacturer Response:

Thank you for purchasing Sans Digital Product.

The unit is shipped as normal, but if the unit is received as damage, please contact us or Newegg to request exchange.

The only command problem when the hard drives is not detected correctly is due to installation. If the drives does not line up to correctly on the trays, it will not detect it correctly. Please contact us to walk-via the installation to correct the issues.

If you are having problem on the unit, please contact us by calling 1-800-980-1988 for technical support and our engineer will try to resolve it over the phone. You can also contact us at for e-mail supports.

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

  • Rajiv B.
  • 5/25/2013 6:29:54 AM
  • Tech Level: High
  • Ownership: more than 1 year

5 out of 5 eggsExcellent enclosure for a reasonable price!

Pros: I was first a bit skeptical to pick this unit up since there doesn't seem to have been a large number of reviews and I haven't dealt much with this manufacturer. But I'm glad I did, was a great choice.

1) No other 8 bay RAID enclosure will go for this price on the market. I've done lots of research and found this to be the most reasonably priced.
2) There is an excellent set of features on the web-based management portal for this unit including temperature gauges, health checks (which automatically scans and repairs bad sectors,) S.MA.R.T, etc. All of this is done on a default schedule without the administrator needing to executing it on their own.
3) 8 bays! This will accommodate a huge amount of drives, currently I have 8 1TB drives in RAID5.
4) Very easy to use administrative interface, building the RAID was a breeze.
5) Reasonably priced.
6) There is a built-in speaker which beeps if a drive fails, or if the RAID fails. This alerts the administrator that action needs to be taken - unlike a software RAID in Windows 2003 (haven't tried in 2008,) if a drive fails there's absolutely no notification unless you go through disk management console or the event logs.

Cons: Only very minor cons, other RAID enclosures have the ability to integrate apps for usenet, etc. However if you're just looking for a basic RAID enclosure without the fancy bells and whistles, this is still a great choice. Some people state that the bundled controller card has slow performance and they have had better results with another, but I'm using this RAID enclosure strictly for storage/archiving so no complaints so far.

Other Thoughts: Would highly recommend this RAID enclosure. Solid reliability, well priced, excellent set of features!

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

  • Darrik H.
  • 2/7/2013 9:55:44 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggs

Pros: very quiet. nice lighting.

Cons: cheaply made. couldn't get card to function correctly under ubuntu with a pci to pci-adapter card.

Other Thoughts: decent start case for those looking to delv into the world of raid.

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

  • Darin M.
  • 11/25/2012 12:21:30 PM
  • Tech Level: High
  • Ownership: more than 1 year

3 out of 5 eggsReview update

Pros: Like I said before, the box itself is great. eSATA with port multipliers is a great thing.

Cons: Everything else that comes with the box is apparently junk.
I had problems with the RocketRaid card and ended up buying a Silicon Image non-raid card to get it to work with FreeBSD initially. A couple of weeks ago, I had problems with drives starting to drop. It turns out the cables they include are junk and easily lose connection. So, I bought a new eSATA cable from Cables To Go and now things are stable again.

Other Thoughts: Throw away everything that comes with this except the enclosure.

Manufacturer Response:

Thank you for purchasing our product.

The unit's eSATA controller card support Linux. At the same time, there are difference version of BIOS for Linux/BSD specific application. Please consult with our technical support for solutions.

Please contact us by calling 1-800-980-1988 for technical support if you have further questions. You can also contact us at

2 out of 4 people found this review helpful. Did you? Yes No

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