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be quiet! Power Zone 850W Cm Power Supply Unit
HK$ 1,371.00
Nzgameshop
Welcome to the Zone. The be quiet! Power Zone is home for discerning gamers and PC enthusiasts seeking high power, top performance and great features. Power Zone 850W hits that sweet spot with granite stability, advanced cooling features, low noise and great value. • 850 Watts of continuous power output with massive 12V rail design and DC-to-DC technology make this power supply ideal for overclocking • Variable speed 135mm SilentWings fan with airflow-optimized blades, copper core fluid dynamic bearing, and special 6-pole motor enables quiet operation • Cool*off feature runs fans for three minutes after system shutdown to protect your valuable components at their time of maximum heat stress • Connect up to three case fans for optimized system cooling that is thermally controlled by the Psu, quieting your whole system • Full cable management with quality sleeved cables and four PCI Express connectors supports maximum build flexibility and superior airflow in your case • 80Plus Bronze certification for high efficiency of up to 89%. Support of Intel’s Deep Power Down C6/c7 mode • Product conception, design and quality control in Germany Performance Zone • Massive 12V rail design, Active Clamp and Synchronous Rectifier (Sr) technology (for 12V and 5V), DC-to-DC (for 3.3V and 5V) voltage step-down for rock-solid power stability and minimal signal noise • Up to 70A / 840W available on the 12V rail, respectively 98.8% of the total power • Designed for powerful operation even at 50° C • Certified for Nvidia SLI and CrossfireX multi-GPU systems • Atx12V 2.4 & Eps12V 2.92 compatibility supports the latest generations of processors from Intel® and Amdtm • Ready for Intel HaswellTM platform • Excellent voltage regulation under 2% on the 12V rail Quiet Zone • Installed variable speed 135mm SilentWings fan includes a wide array of electronic and mechanical optimizations for best-of-class air flow with very low noise production - unique airflow-optimized fan blade design reduces noise-generating fan turbulence - advanced fluid dynamic bearing with copper core provides greatly reduced operating noise and super-long life - special 6-pole motor reduces power consumption and vibration • SilentWings fan reduces transmission of vibration and noise • Variable fan speed is optimally governed to strike the best balance between proper cooling and deep quiet Cooling Zone • Cool*off feature runs fan for three minutes after system shutdown, protecting valuable components at their time of maximum heat stress • Connect up to three case fans for optimized system cooling that is thermally controlled by the Psu, quieting your whole system Connection Zone • Fully modular cable management with quality sleeved cables simplifies component installation, reduces annoying clutter, maximizes build flexibility, and improves cooling due to increased airflow • System supports up to 25 connectors for massive system builds • Four PCI Express connectors supported for powerful multi-GPU configurations (Nvidia SLI and AMD CrossFireX) • Excellent compatibility for past, current and future components • Sleeved cable lengths up to 115cm also promote cooling and are perfect for large PC cases • Individual P4 and P8 plugs support all common mainboard types • Clearly labeled plugs and clever accessories promote simple installation Safety Zone • Top protection for components against over-currents, over- and under-voltages, short circuits, overheating and overloads • Built-in surge protection included Green Zone • 80Plus Bronze certification for high efficiency of up to 89% • Active Power Factor Correction with an PF of up to 0.99 • Standby power drain
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Segotep Gp700P 600W Power Supply with 120mm Fan
HK$ 547.00
GearBest
Segotep Gp700P 600W Power Supply with 120mm Fan
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110V 220V to 12V 5A 60W LED Light Strip Switch Power Supply Transformer Driver
HK$ 108.00
Banggood
Specification: Weight is about:388g Size: 86x59x33mm(LxWxH) Input Voltage: 110~220V AC Output Voltage: 12V DC Output Current: 0~5.0A Shell Material: Metal case / Aluminum base Protection: Shortage Protection, Overload Protection, Over Voltage Protection Safety Compliance: Ccc/ FCC / CE Working Temperature: 0~45℃ Storage Temperature: -20~65℃ Ambient Humidity: 0~96% Non-Condensation In-Door USE Only! Application: For the Led Lights Strip Power Supply, widely used in Industrial automation, LED display, communications, etc. Note: This Power Supply Unit "does Not" come with installation instruction,on/off switch, or screws. Professional installation of qualified electrician is highly recommended. Package Included: 1 X 12V 5A 60W Power Supply
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Antec VP350P 350W Atx Black Power Supply Unit
HK$ 429.00
Nzgameshop
Antec Vp350P 350W PSU VP Series Antec's Vp350P power supply promises one thing: quality performance at an incredible value. This entry-level solution gives you everything you need in a power supply, nothing you don't. Like a quiet 120 mm fan for blustery cooling. Dual 12V rails for amazingly stable power. Or heavy-duty protection circuitry for peace of mind, no matter how demanding your system. The Vp350P doesn’t have time for twinkly lights or fancy paint jobs. With this power supply, you get only the features you need, including an Antec Quality 2 year warranty. No bells. No whistles. No nonsense. Get strictly power with Antec's Vp350P. Power Nominal power 350 W AC input voltage 100 - 240 V Power Factor Correction (Pfc) type Active Power protection features Over current, Over power, Over voltage, Short circuit Cooling Fan diameter 12 cm Number of fans 1 Ports & interfaces Motherboard power connector 20 4 pin ATX Number of Sata power connectors 3 Peripheral (Molex) power connectors (4-pin) 3 PCI Express power connectors (6-pin) 1 CPU power connector (4 4 pin) Yes Floppy drive power connector 1 Performance Form factor ATX Purpose PC ATX version 2.3 Mean time between failures (Mtbf) 100000 h Design Colour of product Black Weight & dimensions Width 150 mm Depth 140 mm Height 86 mm Weight 1.5 kg
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*Prices updated on 20 Sep 2017

The Essential Guide to Choosing a Power Supply for your computer

Although power supply unit is one of the most important components of a computer, it is one of the most overlooked because many underestimate its potential. When it comes to a selection of power supply, it can make a huge difference between a well-functioning computer system and a faulty one that is prone crashes, boot failures, and other problems. While each computer build has its own unique power requirement, it is important to get the right power supply to prevent other issues from happening. This is what you should look for before going to buy a power supply for your computer.

Overall Wattage

As it refers to how much overall power a system needs to function well, overall wattage will determine how you choose your power supply. If you want to calculate overall wattage, you can find several power supply calculators on the internet. When in doubt, it is always best to aim high and overshoot because oversized power supply can power undersized system easily. In addition, it makes it easier and cheaper option if you plan to upgrade your system in the future.

Rail Specific Power

When you plan on a certain computer build, it is necessary to calculate the rail specific power. It is a measure of how much power certain components in a build draw from the connected power supply. Most of the time, you will see this applies to how much power a large component such as graphic card can pull from the power supply's main +12V rail. Most mainstream computer builds with one or two mid-range graphic cards will not have rail specific power problems. If you plan on using high-end graphic cards, you should always refer to manufacturer's specifications for how much power a particular graphic card requires. At the same time, you must check on whether your power supply can fulfil the requirement.

Rating

In terms of rating, you need to consider about long-term energy savings. If you are looking for the efficiency standard for power supplies, you can refer to 80Plus certification standard. Based on this certification standard, it sets out the criterion of a highly efficient power supply. A good power supply with 80Plus certification offers greater efficiency for both provider and customer while prevents energy from being wasted. With this power supply, you can also enjoy better voltage regulation that leads to the consistent and stable performance of your system. Furthermore, you can save more energy and money at the same time.

Design

You can always choose the visual design of power supply that matches the color theme of your build. As each person has his or her own style, the best question that you can ask yourself is how your whole computer build will look to you. Instead of a ugly power supply at the bottom of the computer case, you can always opt for other gorgeous power supply designs. In fact, it can be used as an accent to your beloved rig. Contrary to popular opinion, motherboards and power supply have nothing to do with each other. However, you definitely need a suitable motherboard that can fit well with your specific build.

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