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🖤 Slim, silent, and seriously powerful — cool your rig like a pro.
The SilverStone Air Slimmer 120 is a 15.6mm thick, high-performance 120mm slim fan featuring a unique 9 scimitar blade design for enhanced airflow and pressure. It delivers up to 63.7 CFM at a maximum speed of 1800 RPM while maintaining a low noise level of 31.7 dBA. Equipped with an all-copper Fluid Dynamic Bearing, it offers superior durability and efficiency, making it ideal for space-constrained PC builds requiring effective cooling with minimal noise.









| ASIN | B09SMQPJ6X |
| Air Flow Capacity | 63.67 Cubic Feet Per Minute |
| Best Sellers Rank | #160 in Computer Case Fans |
| Brand | SilverStone |
| Brand Name | SilverStone |
| Compatible Devices | Desktop |
| Cooling Method | Fan |
| Customer Reviews | 4.4 out of 5 stars 222 Reviews |
| Global Trade Identification Number | 04710679812182 |
| Included Components | Fan, screws, cable |
| Item Dimensions L x W x H | 4.72"L x 4.72"W x 0.62"H |
| Item Type Name | Slim fan |
| Item Weight | 1 Pounds |
| Manufacturer | SilverStone Technology |
| Material Type | Polycarbonate blades, PBT frame |
| Maximum Rotational Speed | 1800 RPM |
| Model | SST-AS120B |
| Noise Level | 31.7 Decibels |
| Number of Items | 1 |
| Part Number | SST-AS120B |
| Power Connector Type | 4-Pin |
| Product Dimensions | 4.72"L x 4.72"W x 0.62"H |
| UPC | 844761022181 |
| Unit Count | 1 Count |
| Voltage | 12 Volts |
| Warranty Description | 1 Year |
| Wattage | 3.84 watts |
G**A
Great Fan! Super quiet and slim to fit
Love this fan! If you need a thin / slim fan that pushes a lot of air and is quiet, look no further. I have two of these in my build as exhaust fans and I can't even tell they are running, they are that quiet. I have never been let down by silverstone products as of yet!
S**C
Excellent Performance and Low Noise in a Slim 120 mm Fan
Bought this fan based on a video review that compared roughly 25 slim 120 mm fans, where this model ranked at the top. It exceeded my expectations in a small form factor case, delivering lower temperatures and noticeably lower noise levels. It pairs extremely well with the AXP-120-67 and a Ryzen 9700X that is undervolted and overclocked.
S**.
The only 140mm slim fan I'll use
Solid quality. Moves a lot of air, doesn't rub against the case, and reasonable noise level.
S**S
Best So Far
The best slim 120mm fans so far. Sufficient pressure to move a decent amount of air through my 30mm thick 22fpi radiator at around 1200 RPM. 22 fins per inch is on the denser side so it will perform even better with lower fpi radiators. Like any fan, they will be noisy at full throttle but they are 4 pin pwm controllable. They can also be daisy chained together but make sure not to exceed the 1 amp limit on most motherboard fan headers. There's no internal wires, pins or magnets for daisy chain. They just have a double headed dongle that connects 2 fans. 2 dongles will have to be used for 3 fans and so forth. At my time of purchase, $25 is a little expensive. If the fans linked up via pogo pins or internal wires, I can understand the pricing due to the extra manufacturing costs.
K**E
Does not run like a 15mm: 20mm class performance
This exceeded expectations. Used this on a SI-100 since 25mm did not clear my case. despite it being a whole 10mm smaller, it is only slightly noisier than the other 25mm fans in my case and performs really well in contrast to its air pressure. Very satisfied with this and glad I found people who recommended it on Youtube, definitely a recommend from me as well.
B**F
Makes flight sim more realistic, but not in a good way
I really wanted to like these fans. They’re decent quality and move air well for a low profile design. And they would have allowed a bit more room in my mATX case for airflow and clearance should I get a larger GPU. But man are they loud. Even at 50%, which is far below what I typically run the rest of my case fans (which are be quiet!), the wine was annoying. When the CPU was under load, and they curved to 70% or more, it was very distracting. Loud enough where, given the choice between keeping them and potentially needing to size up a case when upgrading my GPU, I’m opting for the latter.
S**4
Quiet and fully replaces a much thicker fan providing more space.
Replacing a much thicker 140mm fan with this SilverStone Air Slimmer 140 (SST-AS140B) allowed me to install a mini-DTX motherboard in a mini-ITX case. The fan is quiet, the system runs great, and there are no heat issues. Running an i3-10105F on a Asrock H470M-HVS in an old Lian-Li case.
J**A
Good product, but no white option sadly
Only 140mm fans could fit in my small form factor build, but they are excellent as radiator fans and quiet. (MAKE A WHITE VERSION FOR US WHITE PC LOVERS)
M**N
Quiet and cool
The air slimmer is amazing when paired with a low profile cooler such as the AXP90-x47. Only issue is finding it cheaper than NF-A9x14 slim fan. Slightly better performing than the aforementioned product.
M**G
Performant mais bruyant
Testé sur un axp120-x67 dans un fractal ridge. J’ai pu le comparer au thermalright 120 slim et au Noctua a12x15. Il est plus performant mais plus bruyant (question de profil sonore probablement). C’est un très bon ventilateur.
D**O
Great fans
Perfect for builds that require 140mm slim argb fans. Fit perfectly in the front of my Phanteks Enthoo 2. They are very quite too and provide enough airflow for my front rad so far. Highly recommend these as they are not many suppliers of these slim 140 mil argb fans.
T**S
Can’t go wrong with that
Most performance out of a 120mm 15mm fan
M**B
Fan deu problema com pouco mais de 3 meses...
Fan comecou a fazer barulho (rattling) com pouco mais de 90 dias de uso. Estou decepcionado e não recomendo.
Trustpilot
3 weeks ago
3 days ago