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 …

NAS QNAP TS-469 Pro Review

Contemporary network storage units have already undergone the evolution era, and nowadays new emerging models do not differ so much from their predecessors. This basically touches upon external integration and major functional. Still, hardware and software layout is constantly changing, offering more advanced, more efficient, and more comprehensive facilities. QNAP has recently launched a series of four-disk stations, with TS-469 Pro model leading the series.

Design and Integration

NAS QNAP TS-469 Pro is based on a steel frame. The casing is made of dark aluminum, while the frontal panel is made of black plastic. The larger part of this panel features a bay for the HDD installation; HDD bay consists of metallic frames and external plastic straps. Right above the bay there is a block of two-array indicators, two control panels and eight LED lights signifying the work of each hard drive, general device status, network connection, USB connection, and eSATA connection.

Samsung Readies a Couple of Curved Monitors: CF791 & CFG70

Samsung has replenished its lineup of gaming products with a couple of new monitors with a curved framework. The CF791 is a 34-inch display with 4 ms response time, whereas its comrade, the CFG70, is shipped in 23.5-inch & 27-inch variations; their response time equals to 1 ms. Both models are developed on VA panel with 1500-1800 mm curvature.

Samsung CF791 boasts 3400x1400 pixels resolution, while Samsung CFG70 features Full HD resolution (1920x1080). The integrated panel ensures the widest viewing angles – 178/178 degrees in both aspects, 125% coverage in sRGB environment. The latter is due to the incorporation of Quantum Dot technology which enhances color rendering and contrast showings.

A pair is thought to support AMD FreeSync technology via HDMI port; it promotes for the dynamic synchronization of refresh rate within 100-144 Hz range. The CF791 comes equipped with a pair of speakers (2x 7W). It also accommodates 2x HDMI ports, 1x DisplayPort, 1x 3.5-mm mini-jack, …
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Registered at: 16 April 2011, 15:07
Last visit: 16 April 2011, 15:07