Modular Power Supply 650W Chieftec A80

Evaluating the effectiveness of modern computer power supplies, the most attention is paid to their coefficient of performance (COP) at a given load — usually means of 20%, 50% and 100%. At the same time, not less important requirement, established by standard 80PLUS should be considered. That means — the preservation of this level of performance for all occurring in the world supply voltage variations, that is in the range of 100-240 V.



The standard rules of 80PLUS at different levels (Basic, Bronze, Silver, Gold, Platinum, etc.) are performed for two voltage 115 V and 230 V. In both cases, the normalized PS should show the efficiency of not less than specified for each category level. Not usual power supply CTG-650C model of the new A-80 series from the Chieftec company is interesting in that it has officially claimed efficiency of 85% or more, but only for nets 220-240 V.


As the advantages of such solution can immediately be noted a lower price, due to less stringent …

Review of Headphones AKG K451

Traditional headphones do not lose their topicality even with the development of high technologies and with the emergence of ever newer gadgets. This fact can be easily explained by their comfort in usage and portability. Headphones are designated for usage in home conditions as well as outdoors or in transport. This accessory is usually bantam, and can be, with certainty, attributed to the class of universal devices. Headphones AKG K451 may be connected practically with any device, starting from MP3 stereo, audio system, and finishing with PC, laptop or iPad.


Basic Features of AKG K451


Headphones AKG K451 are accredited to the class of wired accessories with the bandwidth from 11 to 29000 Hz. Heightened susceptibility of headphones, which reaches up to 126 dB/mW, is considered to be quite an attractive peculiarity. Such susceptibility means that the sounding will be played back with the optimal legibility and volume even if the volume button at the device is set for …

External HDD Adata DashDrive Durable HD710 Review

The situation in the segment of external hard drives can nowadays be viewed twofold. On the one hand, the customers are able to choose the device according to all their requirements, as the range of HDD counts up hundreds of high-end and budgetary models. On the other hand, such wide spectrum of devices triggers violent competition among manufacturers which would like to win their customers by unique design or new developments in framework. Adata decided to win its customers by the unusual design, as well as unmatched durability and reliability. Thus, Adata DashDrive Durable HD710 series is distinguished by both, design and performance.



General Peculiarities and Layout


Adata HD710 is attributed to the protected external HDs which comply with the dust-, water-, and moisture protectability international standards. Those standards usually include a few dozens of sub-standards and research methods which allow the manufacturer to test their products in different conditions. …
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Registered at: 24 September 2012, 11:52
Last visit: 25 September 2012, 03:21