Summary: dependable - long life double ball bearing. will most likely be used for a rear exhaust fan, so its nice to have the peace of mind of having a good fan back there versatile - comes with adapter to plug into 4-pin molex connector or 3-pin motherboard header
Pros: double ball bearing, so you can run it at higher RPMs with less noise and longer life than a sleeve bearing
Cons: a little on the expensive side for a fan, but you truly get what you pay for
Excerpt: This fan replaced the 2-wire fan in my portable 12V Peltier food cooler/warmer. The original fan was junk and froze solid within a year. The Antec fan has variable speeds, which is a nice addition, and it's very efficient.
Pros: Easy To Install, Energy Efficient, Quiet, Reliable
Excerpt: I bought this Antec fan to replace a failing fan in a 3 year-old HP PC. It was easy to install, and it comes with screws and a power source adaptor, which would allow it to be installed in a variety of PCs, with varying motherboard connectors.
Summary: This fan comes with both 3-pin and 4-pin connectors. Plugging the 3-pin connector into your fan header will allow you to control the fan speed (if you motherboard has this feature). This is great to keeping the fan running efficiently at a desired noise output.