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2. Power supply unit (computer) - Wikipedia

   en.wikipedia.org/wiki/Power_supply_unit_(computer)

   HP's server power supplies have reached 94% efficiency. [25] Standard PSUs sold for server workstations have around 90% efficiency, as of 2010. The energy efficiency of a power supply drops significantly at low loads. Therefore, it is important to match the capacity of a power supply to the power needs of the computer.

3. AC adapter - Wikipedia

   en.wikipedia.org/wiki/AC_adapter

   A six-way connector on a "universal" DC power supply, consisting of a four-way X connector and two separate individual connectors (one is the nine-volt battery connector). The X-connector here provides 3.5 and 2.5 mm phone plugs and two sizes of coaxial power connector Universal laptop power supply with adjustable voltage between 12 and 24 volts

4. Thermal design power - Wikipedia

   en.wikipedia.org/wiki/Thermal_design_power

   Thermal Design Power (TDP), also known as thermal design point, is the maximum amount of heat that a computer component (like a CPU, GPU or system on a chip) can generate and that its cooling system is designed to dissipate during normal operation.

5. ATX - Wikipedia

   en.wikipedia.org/wiki/ATX

   An ATX power supply provides a number of peripheral power connectors and (in modern systems) two connectors for the motherboard: an 8-pin (or 4+4-pin) auxiliary connector providing additional power to the CPU and a main 24-pin power supply connector, an extension of the original 20-pin version. 20-pin Molex 39-29-9202 at the motherboard. 20-pin ...

6. List of laptop brands and manufacturers - Wikipedia

   en.wikipedia.org/wiki/List_of_laptop_brands_and...

   Foxconn sells to Asus, Dell, HP, and Apple; Flextronics (former Arima Computer Corporation notebook division) sells to HP; Clevo and Tongfang sell to different laptop manufacturers like Digital Storm, Eluktronics, Eurocom, Metabox, Sager, Schenker, System76, XMG, etc.

7. 80 Plus - Wikipedia

   en.wikipedia.org/wiki/80_Plus

   80 Plus (trademarked 80 PLUS) is a voluntary certification program launched in 2004, intended to promote efficient energy use in computer power supply units (PSUs). Certification is acquirable for products that have more than 80% energy efficiency at 20%, 50% and 100% of rated load, and a power factor of 0.9 or greater at 100% load.