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itemId=qa8726-sy124010l|~|priceRange=1|~|orderable=T|~|orderCount=89|~|call-to-order=|~|call-for-price=|~|hasOptions=T|~|isOrganic=F|~|isNew=F|~|bestseller=|~|name=Scythe Sy124010L Mini Kaze 40Mm Silent Mini Case Fan|~|brand=Scythe|~|cpuBrand=|~|ramIncluded=|~|type=|~|rating=3.0|~|ratingCount=1|~|price=6.23|~|priceReg=7.78|~|priceSale=6.23|~|image=https://s.yimg.com/aah/outletpc/scythe-sy124010l-mini-kaze-40mm-silent-mini-case-fan-75.jpg
1 Review
  • Airflow: 4.11CFM
  • Bearing Type: Sleeve Bearing
  • Connector: 2pin (3pin adaptor included)
  • Noise: 14.00dBA
  • Rated Voltage: 12V
$7.78
$6.23
itemId=wa7571-startech-com-40x10mm|~|priceRange=1|~|orderable=T|~|orderCount=18|~|call-to-order=|~|call-for-price=|~|hasOptions=T|~|isOrganic=F|~|isNew=F|~|bestseller=|~|name=StarTech.com 40x10mm Dual Ball Bearing Computer Case Fan w/ LP4 FAN4X1LP4|~|brand=StarTech|~|cpuBrand=|~|ramIncluded=|~|type=|~|rating=3.0|~|ratingCount=3|~|price=8.11|~|priceReg=10.76|~|priceSale=8.11|~|image=https://s.yimg.com/aah/outletpc/startech-com-40x10mm-replacement-dual-ball-bearing-computer-case-fan-w-lp4-fan4x1lp4-52.jpg
3 Reviews
  • A dual ball bearing design ensures reliability and longer life
  • Backed by a StarTech.com 2-year warranty and free lifetime technical support
  • Dual ball bearing design
  • Inline LP4 power connectors
$10.76
$8.11
itemId=vq6451-scythe-sy124020l-minikaze-ultra-40mm-3500rpm-case|~|priceRange=1|~|orderable=T|~|orderCount=21|~|call-to-order=|~|call-for-price=|~|hasOptions=T|~|isOrganic=F|~|isNew=F|~|bestseller=|~|name=Scythe Sy124020L Mini-Kaze Ultra 40Mm 3500Rpm Case Fan|~|brand=Scythe|~|cpuBrand=|~|ramIncluded=|~|type=|~|rating=4.0|~|ratingCount=44|~|price=7.11|~|priceReg=11.49|~|priceSale=7.11|~|image=https://s.yimg.com/aah/outletpc/scythe-sy124020l-mini-kaze-ultra-40mm-3500rpm-case-fan-45.jpg
44 Reviews
  • Rated Voltage: 12 V
  • Bearing Type: Sleeve Bearing
  • Connector: 2pin (3pin adaptor included)
  • Noise: 19.56 dBA
  • Airflow: 4.86 CFM
$11.49
$7.11
itemId=jt8583-silent-series-r2-case-fan-40mm-3-pin|~|priceRange=1|~|orderable=T|~|orderCount=63|~|call-to-order=|~|call-for-price=|~|hasOptions=T|~|isOrganic=F|~|isNew=F|~|bestseller=|~|name=Fractal Design FD-FAN-SSR2-40 Silent Series R2 40mm 3-Pin Case Fan|~|brand=Fractal Design|~|cpuBrand=|~|ramIncluded=|~|type=|~|rating=5.0|~|ratingCount=5|~|price=11.99|~|priceReg=12.73|~|priceSale=11.99|~|image=https://s.yimg.com/aah/outletpc/fractal-design-fd-fan-ssr2-40-silent-series-r2-40mm-3-pin-case-fan-153.jpg
5 Reviews
  • Specifically developed to deliver significant airflow while maintaining low noise levels.
  • Equipped with high performance hydraulic bearings, increasing both fan performance and reliability
  • The cable on each Silent Series R2 fan is fully sleeved for effortless cable routing and enhanced aesthetics.
$12.73
$11.99
itemId=ib3275-gelid-35-426-039-slient-4-40mm-case-fan|~|priceRange=1|~|orderable=T|~|orderCount=56|~|call-to-order=|~|call-for-price=|~|hasOptions=T|~|isOrganic=F|~|isNew=F|~|bestseller=|~|name=GELID FN-SX04-42 Slient 4 40mm Case Fan - White|~|brand=GeLid|~|cpuBrand=|~|ramIncluded=|~|type=|~|rating=3.5|~|ratingCount=11|~|price=9.39|~|priceReg=14.65|~|priceSale=9.39|~|image=https://s.yimg.com/aah/outletpc/gelid-fn-sx04-42-slient-4-40mm-case-fan-white-167.jpg
11 Reviews
  • Bearing Type: Hydro Dynamic Bearing
  • Rated Voltage: 12 V
  • Rated Current: 0.1 A
  • Power Connector: 3 Pin Molex
  • Cable Length: 450 mm
$14.65
$9.39
itemId=qn7726-noctua-nf-a4x10-40mm-case-cooling-fan|~|priceRange=1|~|orderable=T|~|orderCount=572|~|call-to-order=|~|call-for-price=|~|hasOptions=T|~|isOrganic=F|~|isNew=F|~|bestseller=|~|name=Noctua NF-A4x10 40mm Advanced Acoustic Optimisation Case Fan|~|brand=Noctua|~|cpuBrand=|~|ramIncluded=|~|type=|~|rating=5.0|~|ratingCount=49|~|price=13.85|~|priceReg=18.13|~|priceSale=13.85|~|image=https://s.yimg.com/aah/outletpc/noctua-nf-a4x10-40mm-advanced-acoustic-optimisation-case-fan-157.jpg
49 Reviews
  • Flow Acceleration Channels; Reduced Motor Hub Size
  • Integrated Anti-Vibration Pads; Smooth Commutation Drive 2; SSO2 Bearing
  • Low-Noise Adaptor for full flexibility
  • 3 to 2-pin Adaptor and Polarity Protection
  • Extensive cabling options; 6-year manufacturer's warranty
  • The NF-A4x10 impeller features suction side Flow Acceleration Channels. By speeding up the airflow at the crucial outer blade regions, this measure reduces suction side flow separation and thus leads to better efficiency and lower vortex noise.
  • Thanks to its streamlined, compact motor design, the NF-A4x10's motor hub is smaller than with conventional 4cm fans. This allows for more blade surface area and thus contributes to the NF-A4x10's superior airflow and pressure performance.
$18.13
$13.85
itemId=uw2572-silenx-ixtrema-pro-40mm-14dba-6cfm-fan|~|priceRange=1|~|orderable=T|~|orderCount=106|~|call-to-order=|~|call-for-price=|~|hasOptions=T|~|isOrganic=F|~|isNew=F|~|bestseller=|~|name=Silenx IXP-13-14 iXtrema Pro 40x20mm 14dBA 6CFM Fan|~|brand=SilenX|~|cpuBrand=|~|ramIncluded=|~|type=|~|rating=5.0|~|ratingCount=3|~|price=15.97|~|priceReg=18.51|~|priceSale=15.97|~|image=https://s.yimg.com/aah/outletpc/silenx-ixp-13-14-ixtrema-pro-40x20mm-14dba-6cfm-fan-148.jpg
3 Reviews
  • Silenx IXP1314 iXtrema Pro Fan
$18.51
$15.97
itemId=sy6503-silenx-ixtrema-pro-40mm-5cfm-fan|~|priceRange=1|~|orderable=T|~|orderCount=128|~|call-to-order=|~|call-for-price=|~|hasOptions=T|~|isOrganic=F|~|isNew=F|~|bestseller=|~|name=Silenx IXP-11-14 iXtrema Pro 40x10mm 14dBA 5CFM Fan|~|brand=SilenX|~|cpuBrand=|~|ramIncluded=|~|type=|~|rating=3.0|~|ratingCount=7|~|price=17.41|~|priceReg=21.89|~|priceSale=17.41|~|image=https://s.yimg.com/aah/outletpc/silenx-ixp-11-14-ixtrema-pro-40x10mm-14dba-5cfm-fan-181.jpg
7 Reviews
  • Silenx IXP1114 iXtrema Pro Fan
$21.89
$17.41
itemId=c2209|~|priceRange=1|~|orderable=T|~|orderCount=7|~|call-to-order=|~|call-for-price=|~|hasOptions=T|~|isOrganic=F|~|isNew=F|~|bestseller=|~|name=Delta 40mm Case Fan w/ 3-Pin Fan Power Connector - 40x20mm|~|brand=Delta|~|cpuBrand=|~|ramIncluded=|~|type=|~|rating=5.0|~|ratingCount=3|~|price=10.77|~|priceReg=27.56|~|priceSale=10.77|~|image=https://s.yimg.com/aah/outletpc/delta-40mm-case-fan-w-3-pin-fan-power-connector-40x20mm-133.jpg
3 Reviews
  • Voltage Rating : 5
  • Size (WxHxD mm) : 40 x 40 x 20
  • Maximum Airflow : 8.48
  • Bearings : Ball
$27.56
$10.77






Keep your PC desktop cool with 40mm PC fans. A convenient and easy way to cool your system, our cheap 40mm fans will not disappoint. 40mm computer case fans are very common computer cooling fans that move air to specialized parts of a computer's case. Pick up the 40mm computer cooling fan you need at OutletPC!