Fractal Design Silent Series R3 fans offer excellent value for your money with good performance & assured reliability All Fractal ...

Fractal Design Silent Series R3 fans offer excellent value for your money with good performance & assured reliability All Fractal ...

Increase the storage capacity of your Fractal Design case with a drive bracket upgrade kit Each kit

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The Venturi High Flow Series fans HF-12 & HF-14 are optimized for low-restriction airflow environments making them an excellent choice for computer case fans or other low-restriction usage scenarios Designed with a variety of performance-increasing & noise-reducing features these fans can move an amazing amount of air compared to other fans at the same minimal noise level The HF-14 comes with two sets of solid vibration-dampening rubber corners one for standard 140mm fan hole spacing (125mm) & one compatible with the standard 120mm hole spacing (105mm) The Venturi High Flow Series fans are ideal for those looking for a perfect balance between high performance & low noise built from sturdy high quality materials
- Featuring true FDB-bearings providing silent operation coupled with a long lifespan- Equipped with a counter-balanced magnet that reduces the axial tension on the bearing- Features integrated vibration-dampening corners made from solid high-quality synthetic rubber- Dense sturdy construction made from high-grade glass reinforced fiber reinforced thermoplasticpolymer- Fan geometry is optimized for a ground-breaking airflow perfect for low-restriction usage scenarios such as computer case ventilation & low-density heatsinks or radiators
- Aerodynamically shaped thin stator struts reduce noise & unwanted turbulence- Strategically placed notches on the blades further reduce & diffuse any humming noise produced when the blades pass the stator struts- The trip wire technology introduces a micro-turbulent layer that combats elements that negatively affect performance resulting in quieter operation- Featuring a powerful motor to maintain a reliable speed & a low-speed adapter for reducing the speed without the use of a fan controller- 140mm fans come with an additional set of vibration-dampening corners are included that lends compatibility with 120mm fan mounts (105mm screw spacing) This enables the use of 140mm fans on many CPU coolers
- Available in 120mm & 140mm fan sizes Performance Fan connector 3-pin Rotational speed (max) 1400 RPMRotational speed with LNA (max) 1100 RPMNoise level with LNA (max) 19 d B Airflow with LNA (max) 1118 m&sup 3;h Bearing type Fluid dynamic bearing (FDB) Noise level (high speed) 253 d B Type Fan Suitable for Computer case Fan diameter 12 cm Maximum airflow 834 cfm Maximum air pressure 122 mm H2 O Airflow 1417 m&sup 3;h Number of fans 1 fan (s) Mean time between failures (MTBF) 150000 h Number of fan blades 9 Design Colour of product Black Grey White Cable length 05 m Technical details Noise level (high speed) 253 d B Type Fan Suitable for Computer case Fan diameter 12 cm Maximum airflow 834 cfm Maximum air pressure 122 mm H2 O Airflow 1417 m&sup 3;h Number of fans 1 fan (s) Cable length 05 m Fan connector 3-pin Power Starting voltage 4 VVoltage 12 Rated current 02 AColour Colour of product Black Grey White Weight & dimensions Width 120 mm Package weight 215 g Depth 25 mm Height 120 mm Weight 169 g Endurance Mean time between failures (MTBF) 150000 h Packaging data Package weight 215 g Packaging content Screws included Yes Low-noise adaptor (LNA) Yes


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The Venturi High Pressure Series PWM fans HP-12 & HP-14 are optimized for high-restriction airflow scenarios making them an excellent choice for usage on large heatsinks on radiators or in other highly restrictive scenarios Designed with a variety of performance-increasing & noise-reducing features these fans can move an amazing amount of air through restricted environments compared to other fans at the same minimal noise level The HP-14 comes with two sets of solid vibration-dampening rubber corners one for standard 140mm fan hole spacing (125mm) & one compatible with the standard 120mm hole spacing (105mm) The Venturi High Pressure Series PWM fans are ideal for those looking for a perfect balance between high performance & low noise built from sturdy high quality materials Featuring true FDB-bearings providing silent operation coupled with a long lifespan Equipped with a counter-balanced magnet that reduces the axial tension on the bearing Features integrated vibration-dampening corners made from solid high-quality synthetic rubber Dense sturdy construction made from high grade glass reinforced fiber reinforced thermoplastic polymer Fan geometry is optimized for high pressure delivering high performance results in high restriction usage scenarios such as in use with large dense heatsinks or water cooling radiators Featuring PWM control with a very wide speed range starting at only 400RPM (400
- 100 RPM) ideal for CPU heatsinks or radiators where the motherboard can control the fan speed based on the CPU temperature Aerodynamically shaped thin stator struts reduce noise & unwanted turbulence Strategically placed notches on the blades further reduce & diffuse any humming noise produced when the blades pass the stator struts The trip wire technology introduces a micro-turbulent layer that combats elements that negatively affect performance resulting in quieter operation Comes with a PWM Y-cable for connecting additional fans to a single PWM header on your motherboard or PWM fan controller 140mm fans come with an additional set of vibration-dampening corners are included that lends compatibility with 120mm fan mounts (105mm screw spacing) This enables the use of 140mm fans on many CPU coolers Attributes Fan Diameter 140 mm Fan Speed 1800 RPMInterfaces Connector 1 x 4-pin PWM
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Many are familiar with the beauty & ubiquity of fractal forms within nature Unlike the study of smooth forms such as spheres fractal geometry describes more familiar shapes & patterns such as the complex contours of coastlines the outlines of clouds & the branching of trees In this Very Short Introduction Kenneth Falconer looks at the roots of the 'fractal revolution' that occurred in mathematics in the 20th century presents the 'new geometry' of fractals explains the basic concepts & explores the wide range of applications in science & in aspects of economics This is essential introductory reading for students of mathematics & science & those interested in popular science & mathematics ABOUT THE SERIES The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area These pocket-sized books are the perfect way to get ahead in a new subject quickly Our expert authors combine facts analysis perspective new ideas & enthusiasm to make interesting & challenging topics highly readable ...

The smarter way to play snap & pairs In all other snap games you match identical images With this unique game it’s equivalents that are matched; This unique deck of cards lets you play two family favourites Snaps & Pairs using fractions For example 50 snaps with 12 To play Pairs simply turn all the cards upside down & turn two over to see if they match If they do you keep the cards if not you put them back! Two fun games in one that help children learn fractions
Includes:52 x Full-colour playing cards 3 x Rules Card Self checking guide Playing Time 10 Minutes Players 1 Age 7
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This game is a great way of helping the children to learn about the fundamentals of working with fractions & how they relate to decimals percentages & parts of a whole unit for example children will be trying to find cards that match 05 510ths 50 12 14 Suitable for ages 7 For 1 Players 52 x Full-colour playing cards 3 x Rules Card Self checking guide ...

Written by DAVID TISCHMAN Art & cover by TIMOTHY GREEN II The cult-favorite 2004 series is collected in its entirety for the first time! FRACTION stars four tough young men from Philly mean streets who pull off a drunken robbery What they end up stealing are the components to a high-tech suit of battle armor How far will each of them go to use the armor for his own purposes? ...

An engaging Fractions activity book to really help boost your child's progress at every stage of their learning! Including helpful questions & answers this Maths book provides reassurance whilst supporting your child's learning at home Combining useful Maths practice with engaging colourful illustrations this Fractions practice book helps to boost your child's confidence & develop good learning habits for life Each fun activity is designed to give your child a real sense of achievement Included in this book questions that allow children to practise the important skills learned at school colourful activities that make learning fun & motivate children to learn at home helpful tips & answers so that you can support your child's learning ...