be quiet! has made 2 revisions out of its own product line for the past 6 months, respectively upgrading Straight Power Series into “Deluxe” version (coded as E6/non CM), and upgrading Straight Power Series recently into CM version (coded as E7). Therefore, you’ll find E6 and E7 versions of Straight Power series on the market. The major difference between these two versions is whether it has CM or not. be quiet! Straight Power E7 CM (Cable Management) has 3 wattages for you to choose from, 480, 580 and 680W. This wattage range covers the wattage commonly required by most of the users. In addition, all of them are 80Plus Bronze certified. The efficiency test result of E7 680W’s 20/50/100% loading listed in 80Plus website is 85.84/86.86/83.05% respectively. The test result looks quite satisfying. 80+ Bronze could be considered as an index of middle-high level power supplies. Here is our start - Straight Power E7 CM 680W There is no jaguar image as be quiet! usually would put on their color box this time. Through the simpler color combination, the color box looks of even more quality. Accessories Multi-language User Manual, CM Cable Kit, Cable Tie, Screws, Power Cord Straight Power E7 680W Dimensions 160mm X 150mm X 86mm The case is coated in titanium gray, making it quite different from black cases commonly seen. The sand texture surface of the case is finger-print proof and the appearance of the heat sink is also a great feature of the product. CM Cables 1 X 12V P8 2 X 6 Pin VGA 2 X 6+2 Pin VGA 8 X HDD 7 X SATA 2 X FDD Connectors from inside of E7 680W 1 X 24/20 Pin 1 X 12V P4 2 X Fan connectors 12cm FDB fan with black symmetric grill-like fan guard is adopted into this series. The fan guard does look like BBQ grill, ……anyway, quite a special design. E7 series is integrated with a FDB fan, developed by be quiet!, which has a MTBF of 300,000 Hrs and a super low noise level down to 17dBA. The rear end of the PSU is equipped with the commonly seen ventilation holes in honeycomb shape. Active PFC, applicable in 110~240Vac CM connection sockets A sticker is pasted stating the name/function of each socket so that end users could avoid mistaken connections. There are also 3 rows of ventilations holes beneath for enhancing overall cooling mechanism.