Integrated cabling, with no driver installation delivers a complete and easy-to-use solution
Support for USB 3.0 with transfer rates up to 5 Gbps, while also backward compatible with USB 2.0 for older systems
Long, integrated cables allow for easily running from the back of computers or other hard-to-reach places to more accessible locations
SuperSpeed USB 3.0 compliant host interface, with supported data transfer rates of up to 5 Gbps
eSATA interface compliant with SATA revision 2 and other SATA revisions, with supported data transfer rates up to 3 Gbps
Backward compatible with USB 2.0 systems, with support for USB 2.0 transfer rates of up to 480 Mbps
Integrated 1m (3.3ft) USB 3.0 cable and 30cm (1ft) eSATA cable
No driver or software installation required
This review is from: StarTech.com USB3S2ESATA 3 Feet SuperSpeed USB 3.0 to eSATA Cable AdapterThis USB 3.0 to eSATA adapter cable is just what I needed, and works great with no fuss or bother, no drivers to install, etc. It "just works." I have purchased two of these, and have used them for about a week now. You use one of these when you have a USB 3.0 (or USB 2.0) port on your computer, and you want to connect up to a device that has an eSATA port. This adapter cable does two functions in one: It converts from USB to eSATA, and it also serves as the cable that connects between your computer and the device. Quite often, the external device is an external hard drive, and that is the purpose for which I use this adapter cable.
Generally speaking, it's useful to connect to your external hard drive with the fastest interface it supports. Some external hard drives provide a choice of different connection ports. If your external drive only has a USB 2.0 port on it, just use a USB cable to connect from your computer to the external hard drive, since that is the fastest speed you are going to get anyway (up to 480 Mbit/sec, depending on various factors). If your external hard drive has a FireWire 400 port (also known as IEEE 1394), which supports up to almost 400Mbit/sec, you can connect to it using a FireWire cable from your computer, or a USB-to-FireWire adapter if your computer has a spare USB port but no FireWire port. FireWire 400 is roughly the same speed as USB 2.0 (again, depending on various factors), so if your drive has a USB port, you can again just use a USB cable. If your external hard drive has a FireWire 800 port (again also known as IEEE 1394, generally almost 800Mbit/sec, although again it is complicated), use a FireWire cable if your computer has a FireWire port, to get faster transfer speeds than USB 2.0. If your computer has a USB 3.0 or SuperSpeed USB 3.0 port, you can get transfer rates of up to 5Gbit/sec, which is more than 10 times faster than USB 2.0. If your computer has an eSATA port, it probably runs at 3Gbit/sec (as of this writing), although a newer eSATA spec is coming that transfers at 6Gbit/sec.
So, given all of this (somewhat confusing) information, when would you use this USB 3.0 to eSATA adapter cable? You would use it when you have an external hard drive that has an eSATA port but no USB 3.0 port, and your computer has one or more USB 3.0 or SuperSpeed USB 3.0 ports, and your computer has no eSATA ports or fewer eSATA ports than the number of external drives you want to use. You would also use this USB 3.0 to eSATA adapter cable if you have multiple eSATA drives, not enough eSATA ports on your computer, and the eSATA port(s) on your computer do not support an external eSATA port multiplier (which is the problem I have with my computer). By using this USB 3.0 to eSATA adapter cable, you get to take advantage of the high speed of eSATA, rather than having to use a slow USB 2.0 cable connection between your computer and your hard drive.
That is exactly my situation. I have a Dell XPS 17 running Windows 7 64-bit. It has two SuperSpeed USB 3.0 ports, one combination eSATA/USB 2.0 port, and one regular USB 2.0 port. I have two large external Western Digital drives (Western Digital My Book Studio II - 4 TB (2 x 2 TB) USB 2.0/FireWire 800/400/eSATA Desktop External Hard Drive and Western Digital My Book Studio II - 6 TB (2 x 3 TB) USB 2.0/FireWire 800/400/eSATA Desktop External Hard Drive), both of which have eSATA, FireWire 800, FireWire 400, and USB 2.0 ports. Of these, the 3.0 Gbit/sec eSATA port is the fastest. But I have two of these external drives, and only one eSATA port on my laptop. One might think that I could use an eSATA external port multiplier with my single eSATA port on my computer, so that I could connect two eSATA external hard drives to my computer using my single eSATA port, but my particular computer does not support an eSATA port multiplier (not all eSATA ports do), as noted above.
So, I essentially have a "perfect storm" of circumstances that makes this USB 3.0 to eSATA adapter cable invaluable to me: Two external eSATA hard drives that do not have a fast USB 3.0 port option, only one eSATA port on my computer that does not support an eSATA port multiplier, and two SuperSpeed USB 3.0 ports on my computer. In my case, I decided to use two of these SuperSpeed USB 3.0 to eSATA adapter cables, one for each of the two SuperSpeed USB 3.0 ports on my computer going to the eSATA ports on my two external hard drives, which leaves my combo eSATA/USB 2.0 port free for me to use with my mouse. (Or, I could have used one of these USB 3.0 to eSATA adapter cables to one of the two USB 3.0 ports on my computer, and then used the eSATA port on my computer for the other external drive, but I didn't do that for a complicated technical reason not worth going into here, that has nothing to do with this USB 3.0 to eSATA adapter cable.)
These USB 3.0 to eSATA adapter cables support speeds up to 5Gbit/sec. This is the maximum speed of USB 3.0, but my eSATA drives only support 3Gbit/sec, so my effective speed for each drive is 3Gbit/sec. But that's great -- that's the fast...
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