Supports RAID 0, 1, 10, 5, 5+ spare, spanning and JBOD using bundles software utilities.
Drive interface: 4 x 3.5" SATA I / SATA II Hard drive.
Supports the latest 1TB Hard Drive. Up to 4TB in storage capacity. Supports Windows 2000, XP, Vista, and Windows Server 2003. Supports MAC and Linux
The TowerRAID TR4M is a compact RAID tower utilizing the latest SATA II port feature, where one single eSATA cable connects to four 3Gpps SATA II hard drives. Designed with easy installation in mind, the trayless TR4M allows instant installation by simply inserting the hard drives after opening the protective ventilating cover. It supports JBOD and Spanning modes for instant storage expansion. It also supports RAID 0, 1 0+1, 5, 5+spare via included software utility, for high performance and hard drive redundancy. The package includes a 2-port eSATA PCIe card at no additional cost, which allows the connection between two TR4M units (up to 8 hard drives) using only two cables. PCI/PCI-X options are also available.
1 Year Part & Labor
Most Helpful Customer Reviews
I purchased this one to go with my Mac Pro (1,1). It seemed like a great deal, with sharp looks similar to the Mac Pro, and an included PCIe eSATA adapter card.
The device is sturdily built, and is probably a great companion for a Windows box, but if you're using a Mac Pro, forget this thing. I had nothing but problems with it and had to return it and restore my system to get rid of the drivers and software it put on my machine. Restore may have been drastic, but my cloned backup was handy and seemed easier than tracking down what this thing installs and removing by hand (there is no uninstall package).
Here are the issues:
1) the RAID drivers it uses run under Rosetta, they are not native to OS X intel operating system.
2) this is the big one, the RAID drivers it uses are not from the manufacturer, they are from Silicon Image, and Silicon Image drivers currently only support OS x 10.5.1 or earlier. Let me repeat that, OS X 10.5.1 and...
I don't know why these port multipliers are so hard to find - you'd think the Taiwanese manufacturers would be all over them at cut-rate pirces - Sans Digital must have quite a margin - but the ability to multiplex 4 SATA drives on a single eSATA link is absolutely essential. If you're going to set up RAID volumes at home, this is the way to go - easy to access and swap, some airflow (there's room for improvement there), and clear status lights. If you can find it, get the TR5M version - the Silicon Image chip supports a 5:1 multiplier and it gives you more flexibility.
The Enclosure is great. But I had nothing but trouble with the outdated Silicon Image 3132 PCE E SATA card. The BIOS and software are from 2009. The Silicon Image SATA 5 raid software didnt work with my computer either...
Bottom line: You should by the newer model with the up to date High Point RR622 PCE card.
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