“The fan I am replacing is 3"x 3" and about 1" thick. Will this due, and how does is plug in?”
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This product is 80mm (3.15"). Use screws to fix the fan and plug the fan into the computer.
Sorry, there was a problem. Please try again later.This particular equipment fan is a 80mm, +12VDC, 3-pin, no-sense. So what does that mean? 1) Equipment fans are measured in millimeters along one edge. If the fan has rounded corners (which is typical) make sure to measure from edge-to-edge (i.e. do not stop where the corners start to round). This particular fan is 80mm square with rounded corners. The depth is the typical 25mm, which is about 1 inch. 2) Direct current (DC) equipment fans are typically powered by +5VDC or +12VDC. Sometimes you might find some that are other voltages such as +13.8VDC, +24VDC, etc. It is important to use to the correct DC voltage to power the fan. If you use the wrong voltage, the fan may not rotate fast enough to produce the necessary air flow, or may burn out too quickly. This particular fan is +12VDC. 3) DC equipment fan connectors are typically 2-pin, 3-pin or 4-pin. All fan connectors have at least 2-pins, Ground and +VDC, to supply power to the fan. The 3-pin connector adds the Sense/Tachometer pin so the fan controller can determine if the fan is actually rotating. In addition, the 4-pin connector also adds a Control pin so the fan controller can adjust fan speed. This particular fan has a 3-pin female connector, but only wires for Ground and +VDC. pins of that connector. That basically means it is a 2-wire fan with a 3-wire connector, so do not expect a fan controller to be able to sense if the fan is rotating, or to control the speed. This fan comes with a "power tap" adapter that has a Molex 4-pin female connector on one end, a Molex 4-pin male connector on the other end, and a 3-pin fan female connector that taps the Ground (Black) and +12VDC (Yellow) from one of those connectors. The Molex 4-pin connector is what powered IDE and optical drives for decades before SATA started to take over. If you do not have any Molex 4-pin outputs from your power supply, and do not have any available +12VDC 3-pin fan connector ports, you might need to also get an adapter to convert SATA power to Molex 4-pin power. Note that it is generally possibly to plug a 3-pin female fan connector into a 2-pin or 4-pin male fan connector, as long as it is the correct voltage, but you have to be very cautions about pin alignment. This fan also includes 4 fan mounting screws.
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