Pros: None - it failed to install properly.

Cons: It failed to install correctly. Spent time with tech support, trying various things. None worked. Couldn't get it to work on my Windows 8.1 Pro system.

Other Thoughts: System is a Dell Optiplex XE2 running Windows 8.1 Pro. I needed an eSata port. The website states it works with Win 8 - but I couldn't get it to work. Also, don't like that there were no drivers on the included CD - you had to go to the website to get them. The box states the CD is a "documentation & sofware CD", but it is only documentation.

Pros: It is an ESATA card. I plugged it in, it works. My external hard drives run like internal hard drives.

Cons: There is a cd. You would think it was a driver disk. Instead its a pdf of a tiny manual. Rather bewildering but inconsequential.

Other Thoughts: If you need one, get this one.

Pros: Works with my mac pro running snow leopard. I got two of these to connect to some external JBOD enclosures (SANS DIGITAL TowerRAID TR4M-BNC -- I put a review there as well). Plugged it in, installed the driver. Done.

Cons: None

Pros: *Price!
*Made Mac drives attached to this card hot-swappable
*Want to see if I can run 2 cards, for $120 4 esata connections & my storage would be set for a long while.

Cons: Doesn't want to work in bottom 2 PCI slots Mac Pro(??)

Esata cord comes out easy, users shouldn't mess around in back of towers often anyways.

Other Thoughts: Great easy to use esata card, and if you wanna make mac hot swappable this is your ticket.

Note: Not a raid card, only used for JBOD. Appears similar to 4 usb external drives all plugged in at once. Setup automated task to backup my drives once a day, better than trusting raid card IMO.

Pros: Drop-in eSATA solution for a customized macintosh

Cons: None

Pros: Very easy to install. Plug card in. Install current driver off Sonnet website. Plug in device. Just as advertised.
Transferring data at about 4 gig/minute on a new Mac Pro running 10.6.5.
Hot-swap works perfect

Cons: None

Other Thoughts: Will add this to other computers in the office

Pros: Easy hardware install, download driver, connect to Thermaltake external drive docking station, everything works great, including hot swap.

Cons: None in my experience.

Other Thoughts: Using with '06 Mac Pro running Snow Leopard. Not sure if Sonnet lists '06 as compatible, but works with mine. Thermaltake dock came with Esata cable, so no need to purchase separately.

Pros: None

Cons: This card advertises Windows 7 compatibility and it might be.... except there are no drivers.

Pros: None that I can tell.

Cons: Worked for about a week and then started causing kernel panics. Mac Pro does not seem to want to recognize this sucker no matter what driver I install and kernel panic city.

Pros: Easy to install and works as advertised in a 2007 Mac Pro 1,1 running Snow Leopard 10.6.3. Shut down, install card, start up, download (see below) and install driver, reboot, done—not even 10 minutes start to finish, and supports hot-plugging and ejecting devices. Using with a Cavalry 1TB eSATA/USB hard drive from NewEgg for Time Machine backups and it works great.

Cons: None.

Other Thoughts: Don't use the included driver CD; instead, after installing the card in the case, download the latest driver from the SoNNeT website (manufacturer website on the product page -> support -> computer cards -> PCIe cards -> Tempo SATA E2P -> drivers; make sure to get the right one for your version of OS X, the 10.5+ driver is the first one listed) and install that. The latest version of the driver (released just this month) includes full 64-bit kernel support for Snow Leopard. My machine uses the 32-bit kernel and runs apps in 64-bit, so I can't personally confirm this, but there were no problems in installing either the card or the driver on my system.