20/24 pin - The 20 pin ATX connector that inserts into an ATX motherboard. If your motherboard has a slot for the 20 pin connector shown in the graphic then you can be almost certain that an ATX power supply is required for your motherboard. Some motherboards may require a 24 pin ATX Connector.

P4 – Power connector, most motherboards that have Intel Pentium 4 processors will have a slot on the board for this P4 connector. If your motherboard has this slot then make sure you get a power supply with a P4 connector on it because it will not run without it. As of today standard most power supplies are designed with this connector.

8 pin – EPS12V connector, on some motherboards, rather than have the 4 pin connector, they'll have this 8 pin connector. On most workstation, server and higher end motherboards the 8 pin is a necessity, it provides more power to the motherboard and they are required.

4 pin Molex – The molex connector provides 12V, 7V and 5V to most Optical Drives, Hard Disk, Fans and other accessories.

Floppy Connector - The 4 pin floppy connector supplies power to floppy drives that may be on your computer. Other devices such as card reader drives commonly use this connection also.

SATA – Since Hard Disk Drive manufacturer has created a new specification on the Serial ATA, most power supply manufacturer are forced to provide this unique connector. It delivers 12V, 5V and 3.3V for the components.

6 pin PCI-E – Power input connector found on most current NVIDIA & AMD/ATI graphic cards.

8 pin PCI-E – The latest graphic power connector from both NVIDIA & AMD/ATI which is capable of delivering up to 150W of power.

The 80 PLUS performance specification requires multi-output power supplies in computers and servers to be 80% or greater energy efficient at 20%, 50% and 100% of rated load with a true power factor of 0.9 or greater. This makes an 80 PLUS certified power supply substantially more efficient than typical power supplies and creates a unique market differentiation opportunity for power supply and computer manufacturers.

Thermaltake has more than 20 different power supplies currently been certified by 80PLUS. For details click on link . You may also learn more about how Thermaltake is pushing for a healthier earth at http://www.thermaltake.com/marketing/80plus/index.html.

UL - Underwriters Laboratories Inc. is a U.S. for-profit, privately owned and operated product safety testing and certification organization. Based in Northbrook, Illinois , UL develops standards and test procedures for products, materials, components, assemblies, tools and equipment, chiefly dealing with product safety.

CE - is a mandatory conformity mark on many products placed on the single market in the European Economic Area . By affixing the CE marking, the manufacturer, its authorized representative, or person placing the product on the market or putting it into service asserts that the item meets all the essential requirements of the relevant European Directives.

TÜV – ( T echnischer Ü berwachungs- V erein), Technical Monitoring Association in English; are German organizations that work to validate the safety of products of all kinds to protect humans and the environment against hazards. As an independent consultant , they examine monitoring -needy plants , motor vehicles , energy installations, devices and products.

CCC - ( China Compulsory Certificate) is a compulsory safety mark for many products sold on the Chinese market. It became effective on May 1, 2002. It is the result of the integration of China's two old compulsory inspection systems.

FCC – ( Federal Communications Commission) The FCC was established by the Communications Act of 1934 as the successor to the Federal Radio Commission and is charged with regulating all non-Federal Government use of the radio spectrum (including radio and television broadcasting), and all interstate telecommunications ( wire , satellite and cable ) as well as all international communications that originate or terminate in the United States. It is an important factor in US telecommunication policy .

RoHS – ( Restriction of Hazardous Substances) was adopted in February 2003 by the European Union . The RoHS directive took effect on 1 July 2006 , and is required to be enforced and become law in each member state. This directive restricts the use of six hazardous materials in the manufacture of various types of electronic and electrical equipment.

WEEE – ( Waste Electrical and Electronic Equipment ) it linked closely with RoHS. The directive imposes the responsibility for the disposal of waste electrical and electronic equipment on the manufacturers of such equipment. Those companies should establish an infrastructure for collecting WEEE, in such a way that "Users of electrical and electronic equipment from private households should have the possibility of returning WEEE at least free of charge". Also, the companies are compelled to use the collected waste in an ecological-friendly manner, either by ecological disposal or by reuse/refurbishment of the collected WEEE.