LTC CF-123D 120mm PC Case Fan, Daisy-Chain Connection, Reversible Airflow 2000RPM Max

Have these attached to a window-mounted external radiator to pull in colder air directly from outside. However, during certain hours of the day, it briefly becomes warmer outside than my office so the ability to change fan directions has been the biggest selling point. Don't care much for the RGB but the static pressure is kind of the unsung hero in that, if the rating is correct, makes it one of the best static pressure fans for your radiators at its price level. The noise is bearable at full blast and the change in temps is immediately noticeable because of the high static pressure. I wish more fan companies would follow this idea and make reversible fans.

Darian L. Vorlick · 2026-02-18 · via amazon

I installed these into my ever-changing review system to see how they fit, sounded, looked, and of course cooled. As these were my first time using "chained" fans, I was interested in seeing if that made any difference. My normal motherboard has enough fan headers for individual control, but in this configuration they would be wired in series, controlled together. My final verdict, at least with these fans, is that it made little difference to cooling or noise - It did make cable running nicer and neater however. So it seems like I would give this a thumbs-up. If you do zoned cooling however, you wouldn't want this kind of configuration. The fans look nice enough, but I'm not really an RGB kind of system builder, so I'll leave the subjective look to others for review. On the semi-objective side, I would call these "showy" - bright and hard to ignore. If you like that, then they might be good for you. As air-movers, they seemed average - at low speed generating some air movement, and higher speeds of course moving more air, and of course generating more noise. I wouldn't call the noise levels high at any speed, and there wasn't any objectionable spike at any frequency, just some white-noise of the air and the fans. You will notice however when they ramp it up. CFM is fine for an air-cooled system of reasonable volume case but not really enough to use these with a radiator - you want more than 4mm H2O on the static pressure to push air through a radiator. If you're an extreme OC kind of builder, these probably aren't your first choice fans anyway. For the average mid-tier DIY build for air-cooling, these fans give some flash and aren't budget breaking.

Chris · 2025-09-09 · via amazon

The lighting and effects are pretty cool. Having a full infinity mirror across 3 fans adds a layer of smoothness to the led animations. They are surprisingly quiet when running a default fan profile. At 100% they can get pretty loud but they are extremely effective at cooling when using the full 2000RPM. The chain-linked fans and ability to swap the fan direction with a switch made installation a breeze... It would be nice to have a way to use the fans without the proprietary switch but that's a minor complaint. Still a good product for the price.

DeskBot · 2025-11-08 · via amazon

Really cool fans with easy installation. Only static looks good though, breathing/color switching doesn’t look the best on these.

Ankeet P. · 2026-02-08 · via amazon

They do daisy chain via a connector on the side . And I didn’t realize until they came but they are uni fans , meaning they can run forwards or backwards via a toggle switch which is extremely cool . Not to mention they look amazing when connected to argb header .

Chevy · 2025-11-11 · via amazon

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VALUE SCORE

Price

$6.49

Price

$6.49