Cooler Master’s reputation was built upon the heatsink. We have solidified this cornerstone with decades of experience, innovation, & recognition. Master Air Pro 3 with Continuous Direct Contact Technology 2.0 improves the interior of the base by seamlessly placing the heatpipes together, increasing contact area by 45% which dissipates heat better compared to previous generations of coolers. Continuous Direct Contact Technology 2.0
- Increased surface by 45% by compressing heatpipes together, helping to dissipate heat more efficiently. Air Flow & Heatsink
- 92mm fan, 3 heatpipes, & stacked fins allow cooler air into the heatsink whiles steering extra ventialion to the hotspots. Intuitive Fan Bracket Design – Upgrading & removing Master Fans are a breeze. Installation Made Even Simpler
- Use sturdier X-bracket or simply use your fingers to pin your cooler to the motherboard with push-pin bracket. Box Contains 3 x 6mm CDC 2.0 Heatpipe, 1x 92mm PWM Fan, Intel / AMD ** Please be aware that these are AM4 compatible with the upgrade kit "RR-AM4B-H212-R1"**


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Be Bold in Your Pursuit of Cold The Master Air Pro 4 is the new design in air cooling from Cooler Master. The new CDC 2.0 technology increases the surface area of the cooler base by 45%. The Master Air Pro 4 also comes with the highest quality fans, Master Fan Pro 120 Air Balance, making it the quietest choices when it comes to air cooling. & speaking of quiet we also incorporated Anti-Vibration pads into the fan bracket, completely eliminating the metal-on-plastic vibration noise. If you are looking for an air cooler based on performance & silence the Master Air Pro 4 is for you. Continuous Direct Contact Technology 2.0
- Increased surface by 45% by compressing heatpipes together, helping to dissipate heat more efficiently. Air Flow & Heatsink
- 120mm fan, 4 heatpipes, & stacked fins allow cooler air into the heatsink whiles steering extra ventialion to the hotspots. Intuitive Fan Bracket Design – Upgrading & removing Master Fans are a breeze. Installation Made Even Simpler
- Use sturdier X-bracket or simply use your fingers to pin your cooler to the motherboard with push-pin bracket. Specifications Model MAY-T4PN-220PK-R1 CPU Socket Intel LGA 2011-v 3/2011/1151/1150/1155/1156/1366/775 AMD AM3+/ AM3/AM2+/AM2/ FM2+/FM2 FM1

Dimensions (Lx Wx H) 84x 129x 158mm 3.30 x 5.07x 6.24" Heat Sink

Dimensions (Lx Wx H) 60x 116x 158mm 2.36x 4.56x 6.24" Heat Sink Material 4 Heat Pipes / CDC 2.0 / Aluminum Fins Heat Sink Weight 472g 1.04lb Heat Pipe

Dimensions & Oslash;6 mm Fan

Dimensions 120 x 120 x 25 mm Fan Speed 650 – 2, 000 RPM (PWM) ± 10% Fan Air Flow 66.7 CFM (Max) ± 10% Fan Air Pressure 2.34 mm H2O (Max) Fan Life Expectancy 490, 000 hours Noise Level 6~30 d BA (Max) Bearing Type POM Bearing-CM 4th Gen. Bearing Connector 4-pin PWM Rated Voltage 12 VDC Rated Current 0.15 A Power Consumption 1.8 W Warranty 5 years ** Please note that this is AM4 compatible if you buy the upgrade kit**










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The Master Box 5s design & smartly placed tray cut-outs make light work of installing or expanding multiple interior configurations. Remove, slide & rearrange the internal layout to support larger, high-end components, air & DIY water cooling. Tray cut-outs also allow for the easy mounting & rearranging of SSDs & HDDs across the motherboard tray, along the bottom shelf, or on the back side of the tray (for SSDs). The uniquely modular design of the Master Box creates space where there usually isnt. The case supports 1. Three 120mm fans 2. Four fans with use of optional front bracket Exploring the Interior The Master Box 5s design & smartly placed tray cut-outs make light work of installing or expanding multiple interior configurations. Remove, slide & rearrange the internal layout to support larger, high-end components, air & DIY water cooling. Expanding the Possibilities Motherboard tray cut-outs creatively rearrange space for any size motherboard Expanding the Possibilities for Storage Tray cut-outs also allow for the easy mounting & rearranging of SSDs & HDDs across the motherboard tray, along the bottom shelf, or on the back side of the tray (for SSDs). Expanding the Possibilities for grpahics cards Titans have a place inside too. Or your next VR-ready Ge Force 1080. Internal Configuration YOUR AIR COOLING SET-UPThe uniquely modular design of the Master Box creates space where there usually isnt. The case supports 1. Three 120mm fans 2. Four fans with use of optional front bracket Clean Cabling for clean Access All system setups have hidden space for cable management Easy Fun Challenge the confines of the Master Box 5 by creating intuitive & flexible layouts for components & cables, large or small. Then comes the easy part: building. Specifications Model Number MCX-B5S1-KWNN-11 Available Color Black Materials Steel body, Plastic mesh bezel

Dimensions (Lx Wx H) All 500 x 220 x 475mm Motherboard Support ATX, Micro-ATX, Mini-ITX Expansion Slots 7 Drive Bays 5.25" Cages are sold separately Combo 3.5"/ 2.5" 2 SSD 1 I/O Port USB (Universal Serial Bus) 3.0 x 2 Audio in / out Pre-installed Fan (s) Front 120mm x 1 Rear 120mm x 1 Fan Support Front 120mm / 140mm x 2 Rear 120mm x 1 Liquid Cooling Support Front 240mm / 280mm radiator, up to 50mm thickness without fan Rear 120mm Clearances CPU Cooler 167mm / 6.5" PSU 180mm / 7.1" GPU 410mm / 16.1" Cable Routing Behind Motherboard Tray 25mm
- 35mm


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The Master Box 5s design & smartly placed tray cut-outs make light work of installing or expanding multiple interior configurations. Remove, slide & rearrange the internal layout to support larger, high-end components, air & DIY water cooling. Tray cut-outs also allow for the easy mounting & rearranging of SSDs & HDDs across the motherboard tray, along the bottom shelf, or on the back side of the tray (for SSDs). The uniquely modular design of the Master Box creates space where there usually isnt. The case supports 1. Three 120mm fans 2. Four fans with use of optional front bracket Exploring the Interior The Master Box 5s design & smartly placed tray cut-outs make light work of installing or expanding multiple interior configurations. Remove, slide & rearrange the internal layout to support larger, high-end components, air & DIY water cooling. Expanding the Possibilities Motherboard tray cut-outs creatively rearrange space for any size motherboard Expanding the Possibilities for Storage Tray cut-outs also allow for the easy mounting & rearranging of SSDs & HDDs across the motherboard tray, along the bottom shelf, or on the back side of the tray (for SSDs). Expanding the Possibilities for grpahics cards Titans have a place inside too. Or your next VR-ready Ge Force 1080. Internal Configuration YOUR AIR COOLING SET-UPThe uniquely modular design of the Master Box creates space where there usually isnt. The case supports 1. Three 120mm fans 2. Four fans with use of optional front bracket Clean Cabling for clean Access All system setups have hidden space for cable management Easy Fun Challenge the confines of the Master Box 5 by creating intuitive & flexible layouts for components & cables, large or small. Then comes the easy part: building. ...

DARKMIRROR FRONT PANEL Shade light through a transparent, tinted front panel. PERFORMANCE INTAKE Large intakes on each side of the front panel let the system breathe easy. RGB LED FANS & LIGHTING CONTROL Three 120mm RGB LED fans in front are pre-installed to create an amazing lighting effect. One RGB controller is included in the accessory pack. If your motherboard does not support the RGB control function, you can connect the RESET button & control the RGB lighting directly from the I/O panel. FAN & RADIATOR SUPPORT Front: Three 120mm or two 140mm* fans & up to a 360mm radiator with a maximum thickness of 50mm without fans. Top: Two 120mm or two 140mm fans & supports a 120mm or a 240mm radiator. Rear: One 120mm fan or radiator. All to ensure you don’t have to compromise on performance. * 2 x 140mm fans in front can only be mounted behind the front plate EDGE-TO-EDGE TEMPERED GLASS SIDE PANEL Showcase your build & system lighting effect through the 4mm-thick tempered glass side panel. The side panel bracket hinges on an angle during removal, while two "captive" screws are held in place with rubber so they are not misplaced. GFX CABLE ROUTING Conveniently route the graphics card cable through the PSU shroud grommet. MAIN COMPONENTS CLEARANCE The MB520 RGB case supports CPU Coolers up to a height of 165mm, Graphic Cards up to a length of 410mm, & Power Supplies up to a length of 180mm. ...

The Master Box E300L combines practicality with an accent of style. Able to support high-end graphics cards (363mm), Micro-ATX, & Mini-ITX motherboards, the E300L also has generous room for easy assembly. The front panel keeps ventilation subtle while the side panel offers additional cooling support. Stand out from the rest with a Silver colour accent. With a compact & sensible design, the E300L is a cost effective chassis for your computing needs. Features ...

The Master Box E500 maintains a sleek aesthetic design without sacrificing practicality. The front sliding panel hides the I/O for a cleaner appearance, while granting easy access to the ports when needed. The interior of the chassis, the frame, & the sliding front panel are finished in black for subtle, but elegant appearance. The smooth texture of the front panel contrasts the lower front ventilation, tastefully designed in diagonal lines. A PSU shroud ensures that systems are neatly displayed through the tempered glass side panel. Ample space provides room to build, but also supports extra room for future upgrades. Airflow moves through the case from the front panel & out of the rear, supplemented by ventilation on the top panel with a magnetic dust filter. Features Sliding Front Panel Hide the I/O ports behind the sliding front panel for a cleaner appearance. Tempered Glass Side Panel Showcase your build through the tempered glass side panel. Versatile Cooling Options The front supports up to three 120mm or two 140mm fans & up to a 360mm radiator. The rear supports a single 120mm fan & a single 120mm radiator. Filtered ventilation on the top panel supports up to two 120mm or two 140mm fans & up to a 240mm radiator. Main Components Cearance The Master Box E500 case supports CPU Coolers up to a height of 165mm, Graphics Cards up to a length of 410mm & Power Supplies up to a length of 180mm. Expanding The Possibilities The spacious interior fits all standard motherboards for your system needs. Black coating & a included PSU cover that allows for easy, simple configurations for your system build. Let your configuration stand out with an all-black background. ...

The sleek & aggressive K500 is proof that your fix for the latest performance & looks doesn’t need to come at a high price. With a partial mesh front panel, 400mm of graphics card space, support for six 120mm fans, & front & rear water cooling support, there’s nothing budget about the benchmarks you can reach. Take advantage of generous cable routing clearance, full black coating, & a PSU cover to show off your build through an edge-to-edge tempered glass panel. An included RGB controller, pre-installed RGB fans, & RGB accents on the front panel create a lighting system to go along with any preferred color theme. Whether it’s your first build or your 100th, don’t limit yourself from building a PC you can be proud of. Features Efficient Thermal Performance: A partial meshed front panel & ventilation holes on top of the case give your parts fresh air to breathe. RGB Lighting Effects: Two 120mm RGB fans behind the mesh, two RGB lighting accents on the front panel & the RGB power button create a lighting system to show off your unique gaming build. RGB Lighting Control: One RGB controller can directly customize the lighting even without an RGB-ready motherboard. 1 To 5 Splitter Cable For RGB LED Fans: The RGB Connector Splitter & 4-pin male-to-male adapters are included. Certified compatibility with: ASUS, Gigabyte, MSI & ASRock motherboards. Edge-to-Edge Tempered Glass Side Panel: Show off your build in style & have easy access to your components. Versatile Cooling Options: Support for up to six 120mm fans & front & rear liquid cooling ensure you don’t have to compromise on performance. Graphics Card Support Up To 400mm: Supports the latest, widest cards you can get. Stay Black, Stay Neat: Let your system stand out with a full black coating & PSU cover. ...

The sleek & aggressive K500L is proof that your fix for the latest performance & looks doesn’t need to come at a great price. With a partial mesh front panel, 400mm of graphics card space, support for six 120mm fans, & front & rear water cooling support, there’s nothing budget about the benchmarks you can reach. And to keep everything clean & crispy, take advantage of generous cable routing clearance, full black coating, & a PSU cover. Features Efficient thermal performance: A partial meshed front panel & ventilation holes on top of the case give your parts fresh air to breathe. Lighting effects: Stand out & be unique. Your case will never be unremarkable. Versatile cooling options: Support up to six 120mm fans, & front & rear liquid cooling. Stay black, stay neat: Let your system stand out with a full black coating & PSU cover. Graphics card support up to 400mm: Supports the latest, widest cards you can get. Cable Management: The 19mm width space behind the mainboard tray gives you plenty of cable management options to keep your build nice & clean. Specifications Materials Steel, Plastic Left Side Panel Steel, Acrylic

Dimensions (Lx Wx H) 491 x 200 x 451mm Motherboard Support ATX, Micro-ATX, Mini-ITX Expansion Slots 7 Drive Bays 5.25" N/A 3.5" HDD 2 (Max. 2) 2.5" SSD 1 (Max. 6) I/O Port USB (Universal Serial Bus) 3.0 x 2, Audio In / Out Pre-installed Fan (s) Front 120mm x 2 Red LED fan Rear 120mm x 1 black fan Fan Support Front 120mm x 3 / 140mm x 2 Top 120mm x 2 Rear 120mm x 1 Bottom N/A Radiator Support Front 120/140/240/280mm Rear 120mm Clearances CPU Cooler 160mm PSU 180mm GPU 400mm Cable Routing Behind MB Tray 15-23mm Dust Filters Front, Top, Bottom Power Supply Bottom mount, ATX

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