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Description
be quiet! Silent Wings Pro 4 PWM Black Fan, 140mm, 2400RPM, 4-Pin PWM Fan Connector, Black Frame, Black Blades, Optimized Fan Blades for the Highest Performance for Radiators & Heat Sinks, 3 Mounting Options, 3 Speed SwitchSILENT WINGS PRO 4 140mm PWM LEGENDARY SILENCE, EPIC PERFORMANCE AND FEATURES Silent Wings Pro 4 140mm PWM is the most progressive, performant and versatile fan by be quiet! Optimized fan blades for the highest performance on radiators and heat sinks Speed switch allows changing maximum PWM speed between medium speed, high speed and ultra high speed (up to 2400 rpm) Small tip clearance and a fan frame with a funnel shaped air outlet for extremely high
SILENT WINGS PRO 4 - 140mm PWMLEGENDARY SILENCE, EPIC PERFORMANCE AND FEATURES
Silent Wings Pro 4 140mm PWM is the most progressive, performant and versatile fan by be quiet!
- Optimized fan blades for the highest performance on radiators and heat sinks
- Speed switch allows changing maximum PWM speed between medium-speed, high-speed and ultra-high-speed (up to 2400 rpm)
- Small tip clearance and a fan frame with a funnel-shaped air outlet for extremely high air pressure
- Virtually inaudible operation at regular speed
- 6-pole fan motor and fluid-dynamic bearing for less vibration and very smooth operations
- Individual mounting systems for use as a case fan or with a radiator
- 5-year manufacturer warranty
IMPROVED ON ALL LEVELS
Altered blade arrangement for new generation performance
The fan blades are what makes a fan. It is for this reason that the fan blades of Silent Wings Pro 4 140mm PWM have been developed newly from scratch. The new blade arrangement enables a performance second to none for all possible operations. Be it in a case, on radiators or heat sinks.
OPTIMIZED FOR HIGH-END PERFORMANCE
Minimum distance for maximum air pressure
Silent Wings Pro 4 140mm PWM makes for extraordinary air pressure and therefor, significantly increases the system’s performance. The decreased distance between the fan blades and the frame enables an extraordinarily high air pressure. By that, the Silent Wings Pro 4 140mm PWM allows the user to run even the most demanding applications.
SPEED SWITCH
3 speed options for any possible application
The speed switch makes switching between medium, high-speed and ultra-high-speed of maximum RPM levels quick and easy. The Silent Wings Pro 4 140mm PWM alters its application with a simple slide to the right. Medium-speed is suitable for any operation that requires regular cooling performance. High-speed lets the fan spin faster, providing more cooling power. Ultra-high-speed ultimately offers enough rpm to cool even the most demanding hardware in high-end PC builds.
6-POLE FAN MOTOR
The key for virtually inaudible operation when needed
6-pole fan motor with 3 phases for very low power consumption, less vibration and therefore quiet max. operation of 36.8dB(A). Equipped with this state-of-the-art technology the fan is virtually inaudible when operated in mid-speed.
3 DIFFERENT MOUNTING OPTIONS
For any purpose
Silent Wings Pro 4 140mm PWM has 3 mounting options in the scope of delivery. The pre-installed radiator corners are specially designed for radiators on which the incomparable performance of this high-end fan completely shines. On the other hand, for chassis use, the anti-vibration mounting is the first choice as they reduce vibrations to a minimum. The plastic mountings round up the scope.
FLUID-DYNAMIC BEARING
For a sustainable operation
The advanced fluid-dynamic bearing (FDB) enables a super long fan life of up to 300,000 hours. In addition, it reduces the vibrations significantly and supports the virtually inaudible operation of Silent Wings Pro 4 140mm PWM.
ELEGANT LOOK
Magnificent appearance in all details
The all-black design combined with a high-grade fan sticker makes Silent Wings Pro 4 140mm PWM a highlight in any system. The finely sleeved PWM cable perfectly rounds up the outer appearance of the fan. Not only does the PWM cable look great: its connector can also be plugged in and out with ease, making the fan an eye-catcher and user-friendly alike.
General Data
Model: Silent Wings Pro 4 140mm PWM
Dimensions (mm): 140
Color option: Black
Lighting: -
Fan speed @ 100% PWM / 12V (rpm): 2400
Noise level @ 100% PWM / 12V (dB(A)): 36.8
Air Flow @ 100% PWM / 12V (CFM / m3/h): 97.41 / 165.5
Air Pressure @ 100% PWM / 12V (mm H2O): 3.64
Mechanical Specifications
Dimensions (L x W x H), (mm): 140 x 140 x 25
Weight incl. fixed cables (g): 258
Bearing technology: FDB
Motor technology: 6-pole fan motor
Push pin fixing: Yes
Screw fixing: Yes
Cables / Connectors
Daisy chain for lighting signal: -
Lighting connector: -
Connector: 4-pin PWM
Cable length (mm): 500
Cable sleeve: Yes
Performance / Noise
Air Flow @ 100% PWM / 12V (CFM / m3/h): 97.41 / 165.5
Air Pressure @ 100% PWM / 12V (mm H2O): 3.64
Noise level @ 100% PWM / 12V (dB(A)): 36.8
Lifespan (h / 25°C): 300,000
Electrical Specifications
Rated Voltage DC (V): 12
Operating Voltage DC (V): 7 - 13.2
Current consumption (A): 0.50
Safety current (A): 0.50
Input power (W): 6.0
Rated Current LED (A): -
Accessories
3-pin to 4-pin 12V-connector: -
12V to 7V adapter: -
12V to 5V adapter: -
Screws: 4
Push pins: 4
hard plastic washer: -
Others: -
Safety Certification
Approvals: CE / RoHs / RU / UKCA / TUV / WEEE
Environmental Directives
RoHs: -
Triman: -
Logistics Data
Article number: BL099
Dimensions, package (L x W x H), (mm): 206.5 x 156 x 31
Gross weight, package (kg): 0.448
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4.6 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 5
A must have for, among others, clinical physicians and -especially- mental health experts
Format: Paperback
Very good book. The authors state in a clear and unambiguous way several "tips" that may help us detect deceptive behaviors. They repeat the points, making them easier to "stick". What's interesting is how simple they appear in their application; we are not talking about mathematical topology...The glossary completes admirably the book. Would I read it again? Definitively (a quality "seal" for me). As a physician (psychiatrist) I would definitively suggest it to all physicians that perform clinical work, but, above all, to psychiatrists...
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Deception Detection Primer
This book is well written and is perfect for the newbie like me to grasp the concepts: easy to follow, logically structured, points explained well and with examples, points tied together so you understand how they fit. A few reviewers think the points in the book are obvious. Many of them are, but I think the easy-to-follow writing makes the points seem even more obvious. Superficially, and taken separately, many of these ideas do seem obvious. The hard part is coming to an accurate conclusion about deception.
One reason is because many deception indicators can be false positives. For example, a commonly-believed indicator of deception is crossing your arms. How do you tell if a specific instance of this behavior is a deception indicator or not? The book gives a framework for when deception indicators are, at that moment, an indicator of deception. Another reason is that verbal indicators of deception can be missed or misunderstood. The book goes into excellent detail about how to recognize verbal indicators and to tell when a verbal indicator is, in fact, likely to be deception.
One of the better parts of the book, in my opinion, discussed the initial interrogation of OJ Simpson before his murder trial. They run through the questions that the detectives asked and explained how and why these questions did not work in eliciting possible deception. They then ran through the questions they would ask, following the model in the book, and explained how these questions would have been more effective.
The book stresses the limits of these ideas. You will not read this book and become a human lie detector. Being really good at spotting the lies AND directing an interview to extract those lies takes, I'm sure, lots of practice. However, you CAN gain insights and be better at deception detection just from reading this book. For example, when you watch a suspect interviewed on a news show like Dateline NBC, you'll spot the verbal cues that indicate possible deception, and you'll never watch these shows in quite the same way.
Prior to reading this book, I read "I Know You Are Lying" by McClish. Both books cover a lot of the same material, but from slightly different perspectives. I highly recommend both books if you're interested in this topic. I recommend reading "Spy the Lie" first, as it seems to give a more complete framework for implementing these ideas, then read the McClish book for additional insights.
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Reviewed in the United States on April 16, 2013
★★★★★ 5
Great for recruiters & business owners
Format: Kindle
This is long but it I am so grateful and want to give my recent triumph with the help of this book....I currently own a medical spa. Our biggest challenge is hiring hard working, honest people, passionate about the business. Statistically we are average with the number of good hires but that is not a good thing when statistics say only 51% last more than 12 mos. Especially for lower level jobs being less. Many people just want a paycheck or want free services and could care less about helping customers and learning about aesthetics or medicine. Within the first few chapters I had already found ways of asking questions in interviews that when applied were astounding in getting the right response.
A good example was when I was interviewing a woman whom I felt had amazing qualifications for my Front Desk Manager’s position. She had owned her own pet salon for over 17 years but sold it and went to work for Pet Smart. I thought that seemed a little strange so asked her why? She naturally had a response that she wanted to move to Texas, originally being from Wisconsin which was horribly cold and owning a business was just too stressful. I wanted to know more as this didn’t seem like the mentality of a successful business owner so I asked her what kind of paycheck she wrote herself each year. Her response was “my gross income last year was $80k, which I am so proud of.” 1) She did not answer the question. 2) “which I am proud of.” Is used to further convince me she was making good money.” Luckily as a business owner I know it probably takes at least $80.K just to run a business. But this was not enough for me to disqualify her and author Russell Targ says just 1 red flag is not enough, so after a few more positive type questions I asked another. ‘Tell me about a time you didn’t get along with a co-worker’. I’m paraphrasing because she gave an overly long explanation of events which in-and of itself is a red flag but within the overly verbose statement She stated “they get annoyed with me” but didn’t tell me what “they” get annoyed with. When I asked what ‘they get annoyed with’ she minimized a situation where she had the flu 4 days and the next day she went to an already committed dentist appointment to get her tooth pulled and was in too much pain so again had to call in sick. I was a bit suspicious at this point as to why her boss would be annoyed with this if she was such a great employee since both those explanations seemed reasonable. So I later in the interview snuck in an “assumptive question” about her being late to which she confessed several additional times having been late but of course had plausible excuses. I was even more suspicious at this point about her integrity as an employee so asked the question a different way, ‘tell me a time you had a challenging client’ to which she told me another very verbose story about “a client who brought in a badly matted dog and when after shaving it had lots of bruising etc. the lady gave a terrible rating.” I tried not to sound judgmental so I commiserated with her on that as a business owner how awful that must have felt. We exchanged some giggles and at this point I felt she really was ready to open up to me. I then asked her to ‘describe a bad day at work’ where she gave another story with many excuses why where she had ripped a dog’s ear by accident, the police and media was called accusing her of animal abuse, she was taken to court and her name was smeared in this small town which was hard to recover from.😳 Now I am a bit alarmed but the old me is wanting to believe her that it wasn’t her fault so Finally, I wrapped up after many other positive exchanges I asked ‘if I were to call her employer what derogatory things might they say about her’ to which she replied “they don’t like the way I do things which of course with further questioning her reply was to minimize all of their complaints.” Now, here is where I used to get tripped up. I usually have a phone interview that lasts about an hour or more before setting up face-to-face interview and that is how this one was. I as usual wanting to believe the best in everybody was mostly paying attention to the many positive and outstanding things she had to say and want to believe her excuses so immediately set up a face-to-face interview. But this time I did something differently after hanging up with her. I paid really close attention to the “cluster” of suspicious things she mentioned and by then it hit me like a ton of bricks. In every bad hire I have ever made they had answers like this woman where they minimized, evaded the questions, or had great excuses. Now while we all have great excuses from time to time the book says to pay attention to multiples. Needless to say I politely cancelled the interview. After reading this book the signs were as clear as day.
I am happy to say I am now able to cut my phone interviews down to just 20-30 minutes even shorter when I see these “cluster” as the hook puts it.
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Reviewed in the United States on February 9, 2019
★★★★★ 3
I spy with my little eye...
I give this book a three star for laying out the information on the how to of lie detection.
Now, is this a fool proof system? No as you won't find one. But it sure does give the tools needed to start detecting lies that surrounds us daily.
In the few days that I have read it, I started recognizing some of these patterns within myself and others and at times I call it out, and at times I chuckle realizing what is happening.
I enjoyed the tales in the books and how the authors have used the methods themselves in various scenarios.
What I was hoping more of is more stories and practical implication of it in every day lives. But over all, good book.
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Reviewed in the United States on September 16, 2012
★★★★★ 4
Interesting read that dispels body language myths
Format: Kindle
I wasn't sure what to expect with this book. I purchased it on a lark after spying it (see what I did there?) in a list Amazon presented me with books I might be interested in reading. I'm always interested in all kinds of aspects of communication from storytelling to persuasion techniques to negotiation tactics, and I'd seen similar titles on the topics of lying and truth evaluation in the past.
I decided to buy this title because of the intelligence agency background of the authors, and they described their method of detecting deception as a relatively simple and straightforward one. They weren't lying (see what I did there?).
The book provides clear, real-world examples of subjects who've been less than truthful when questioned about a variety of topics, and for me, those examples went a long way toward crystallizing the specific points being made about the methodology the authors have developed.
As the book points out, there's no such thing as a lie detector, and I doubt most who read this will ever become as adept at deception detecting as the authors are, but the book does provide interesting insights into human nature and how people can give themselves away when they aren't being truthful. I'd say the book is full of solid concepts to keep in mind as you go about your daily life interacting with other people in all kinds of different situations where truth is critical.
You won't become a human lie detector, and you won't be able to observe someone's body language and determine whether or not someone is being truthful (despite what some TV pundits claim they can do – they can't). Just keep the book's methodology in mind and be mindful when you see some of the behaviors discussed.
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Reviewed in the United States on September 20, 2018