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what uses eSATA?

post #1 of 7
Thread Starter 
Could someone explain what eSATA is for? I've seen motherboards and NAS servers with eSATA ports. I've seen PCI cards and PCMCIA cards with eSATA ports, and I've seen eSATA cables.

What I haven't seen, yet, is an actual eSATA device. I use a number of internal hard drives externally with a usb to sata (similar to this http://www.newegg.com/Product/Product.aspx?Item=9SIA1PU0ME2826), and I am hoping to be able to get rid of that and somehow use the eSATA port.

Is that possible?

Thanks smile.gif
post #2 of 7
It's mainly used for external storage drives but I haven't seen a external drive come with eSATA as an option for a while. I do see it on a lot of empty external enclosures where you just add the hard drive afterwards. You may find it use one large RAID enclosures but those also use a wired ethernet connection so they can be a NAS.
post #3 of 7
I have an external hdd case with both USB and esata but the esata does not seem to work? I just use the usb
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post #4 of 7
Some hard drive docking stations use e-sata.
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post #5 of 7
I think eSata was phased out completely by USB 3.0 and Thunderbolt interfaces.
My former (very old) external drive had USB 2.0 and esata ports - esata never worked right, but that was because of poor Jmicron controller on former board, so I never used it, tried for a bit but but gave up and USB2 was what I used the drive with.

I am not sure if esata can provide sata3 speeds nowadays or not, if not then it's a done story.
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post #6 of 7
USB 3.0 has pretty much killed eSATA as a preferred external device attachment. Back in the day when USB 2.0 and Firewire were running 480 and 400 Mbit/sec interfaces, eSATA was capable of 1.5 Gbps or 3.0 Gbps interface rates and made much better sense for external hard drives.

eSATA specifications included a provision for external port multipliers, much like SAS enclosures do. You could run up to 64 devices off a single eSATA port if you had the right drivers and motherboard/eSATA host port hardware. I don't think such things were ever that popular, most enterprise solutions used SAS SFF-8088 connectors because they were more durable and had locking connectors, as well as multi-lane connections.

Greg
post #7 of 7
My motherboard came with two eSATA ports as an expansion card.
The best use of these eSATA ports was to connect bare drives to the computer. It has been invaluable as a recovery tool for the computers around the house.
Other than that... yeah USB 3.0 has taken over for connectivity. My mobo is too old to have it though.
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