Did the case you buy skimp on cooling fans, leaving a bunch of empty fan mounts looking sad and lonely? Well, here's your chance to kick up your case's cooling a notch. Over at Newegg, you can grab a four-pack of Cooler Master's silent case fans (R4-S2S-124K-GP) for $9, down from $13.
The same four-pack is also on sale at Amazon, though as of this writing it shows as being temporarily out of stock.
There's not a ton to say here—they're fans with blades that spin and move air and stuff. They're also quiet at 19 dBA, while providing 44.73 CFM of airflow, and have a 3-pin connector plugging into your motherboard's fan headers.
So if you need more cooling, here you go.
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