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 …

The range manufactured by SHENZHEN JIEHE TECHNOLOGY DEVELOPMENT CO., Ltd. of small-sized desktop computers is provided by Giada company.



Developer of productive PC in nettop form factor, announced sales of the new Mini PC i53, using mobile processors Core i3/i5/i7-3000 (Ivy Bridge) and the platform Intel HM76. The trump of the computer is its dimensions — 192 (W) x 155 (W) x 26 (H) mm, which roughly corresponds to the usual format of the book.


Giada Mini PC i53 is made ​​in the case of strict colour. It has a built-in graphics Intel HD 4000, from 2 to 4 GB of RAM SO-DIMM DDR3, 2,5-inch hard disk drive with 320 or 500 GB, wireless adapters Gigabit Ethernet, Wi-Fi (802.11 b / g / n) and Bluetooth. On the hull there are USB 2.0 (4), USB 3.0 (1) ports, card reader SD / MMC / MS / MS Pro, video outputs HDMI and D-Sub, headphone and microphone slots. There is an external power supply, with power 30 watts. Optionally Windows 7 Home Premium OS is attached to a computer.

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Transcend representatives has recently announced the launch of their new product 2.5-inch PSD520 SSD-drive. According to the company’s concept, PSD520 are destined to secure high performance showings as well as prolonged reliability. Such specifications were achieved due to the implementation of flash microchips with single-layer cell memory location (SLC). Those microchips are able to sustain up to a dozen times more rewriting cycles as compared with multi-layer cell microchips.



SLC microchips have an improved system of defects recovery which enables more efficient operation of the correction system. Moreover, SLC is distinguished by the lesser correlation of defects number per rewriting cycles; such peculiarity allows the correction system to identify the problem and to execute the recovery much faster. As a result, PSD520 drive manifests promising showings in start-up time, as well as the advanced system sensitivity and high data transfer rate which approximates up to 102 …