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  • Sans Digital TowerRAID TR4M-BP - 4 Bay eSATA RAID 0/1/10/5/JBOD Performance Tower w/ 6G PCIe Card (Black)
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Sans Digital TowerRAID TR4M-BP - 4 Bay eSATA RAID 0/1/10/5/JBOD Performance Tower w/ 6G PCIe Card (Black)

6 customer reviews

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  • Bundled with RR622 RAID controller card for over 200MB/s RAID 5 performance.
  • Dual-port eSATA 6Gb/s PCIe 2.0 x1 RAID controller supports up to 2 units or 8 hard drives in a single or multiple RAID array.
  • Backward compatible with PCIe 1.0.
  • Supports RAID 0, 1, 10, 5, 5+ spare, spanning and JBOD.
  • Supports online expansion to expand capacity without the need to recreate the RAID volume and erase the existing data.

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Technical Details

  • Brand Name: Sans Digital
  • Model Number: TR4M-BP
  • Item Package Quantity: 1
  • Color: Black
  • Manufacturer Warranty Description: 1 Year

Product Description

The TowerRAID TR4M-BP is a compact RAID tower utilizing the latest SATA II port multiplier feature, where one single eSATA cable connects to four 3Gpps SATA II hard drives. Bundled with a high performance RAID controller card RR622, its RAID 5 performance is capable of reaching over 200MB/s. 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 trayless TR4M-BP allows instant setup by simply inserting the hard drives after opening the protective ventilating cover. The included dual-port eSATA 6Gb/s PCIe 2.0 x1 RAID controller card allows the connection of up to two TR4M-BP units (up to 8 hard drives) using only two cables, while all drives could be configured into a single or multiple RAID arrays, providing over 200MB/s in performance. Bundled with RR622 RAID controller card for over 200MB/s RAID 5 performance. Dual-port eSATA 6Gb/s PCIe 2.0 x1 RAID controller supports up to 2 units or 8 hard drives in a single or multiple RAID array. Backward compatible with PCIe 1.0. Supports RAID 0, 1, 10, 5, 5+ spare, spanning and JBOD. 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 four hard drives using only one cable. Host interface: eSATA with Port Multiplier. Drive interface: 4 x 3.5" SATA I / SATA II.

Product Details

  • Product Dimensions: 10 x 7.1 x 5.3 inches ; 5.9 pounds
  • Shipping Weight: 7 pounds
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B003X0BJAO
  • Item model number: TR4M-BP
  • Average Customer Review: 3.8 out of 5 stars  See all reviews (6 customer reviews)
  • Amazon Best Sellers Rank:
  • Product Warranty: For warranty information about this product, please click here
  • Date first available at Amazon.com: July 23, 2010

Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

7 of 7 people found the following review helpful By sodakar on April 1, 2011
Verified Purchase
As a consumer, I like to see products that have 5 stars, so it pains me to give this product a 4-star review, but almost superb just isn't 5 stars.

The chassis construction is good, and the SATA card, docs, and drivers are all good, too. The benchmark results from 4 x Seagate LP 2TB's gives me 127MB sequential read, and 95MB sequential writes, so that's certainly acceptable for a budget-minded external box running green SATA drives. (see attached image)

As far as power consumption, using a kill-a-watt, I measured:
- 45-50W peak/momentary
- 35-40W nominal
- 20-25W idle
- 10-15W host system powered down

I have no complaints with the power draw while the chassis is in use, but I'm sorry, I'm going to have to take 0.5 star away for the 10-15W of power when the host system is powered down. Sure, it's only 10-15W (~$1/month, depending on your local utilities), but why have the fan on and sucking power when the the host system is down and the inside of the chassis is 60F? (as measured by an IR thermometer)

It loses another 0.5 star for the drive installation method. Yes, it's tool-less, in that the drives just slide in, but it's not screw-less, because you have to open the side of the chassis and screw on some giant screws similar to what you would see holding down the side cover of a PC. I would've paid a bit more for a simple lock-down mechanism, since this makes it so I need a good amount of clearance on the sides of the chassis when I add a drive.

All that being said, I would certainly consider recommending this to a friend in need of a 4-bay eSATA chassis.
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1 of 1 people found the following review helpful By A Rawlins on August 3, 2011
Verified Purchase
This device seems like it might work well enough if I wasn't sharing it as a mappable drive on the network. However, I have had problems with my Backup Software freezing my machine because this device would not respond quickly enough. That was before I even shared the device across the network.

When on the network, if I am accessing this device hard locally, then it drops from the rest of the network. I have this connected to a Win 7 64 bit i7 3.07 ghz with 12GB Ram. I have installed 4 hard drives each at 3 TB for a total RAID 5 of around 9 TB.

If you want a lot of storage in a RAID 5 and will not touch it much, then this might work great for your needs.
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1 of 1 people found the following review helpful By Michael Roach on March 15, 2011
Verified Purchase
Didn't have any trouble getting this set up. Installed the card with one Enclosure then Created a Raid 5 with 4 2TB WD 5400 64 Drives without any issues. Windows format took several hour to complete. However in the end ended up with 6TB of storage. Achieved speeds up to 100MB/s writes copying data from single 1.5TB drive to this unit.
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