According to the information of previous multi-channel and new products of power supply manufacturers, we have roughly understood the characteristics of the new PCIe 5.0 external power supply interface. With a full specification of 12+4Pin cable, it can meet the "12VHPWR High Power Connector (H+)" standard of PCI-SIG, and the power rating can reach 600W. This new interface is important for future PCs with high-performance graphics cards.
Recently, some netizens exposed some documents of the ATX v3.0 design guide, showing that Intel has included 12VHPWR, and the new power transmission specifications are well outlined through pictures and text. 12VHPWR is pcIe 5.0 external power supply interface, a total of 16Pin (12Pin power supply + 4Pin signal transmission), the wire connector will mark the corresponding rated power, respectively, 150W, 300W, 450W and 600W four gears.
The diagram confirms that the width of the wire connector is 20.85mm, which is slightly wider than the current 8Pin external power supply connector (19mm). The table also indicates pin definitions for wire headers up to 600W that meet the 12VHPWR H+ standard. Six of the pins are for 12V power supply, each with a maximum current of 9.2A and a theoretical maximum output power of up to 662.4W. It is still unclear what the 4 pins used for signal transmission are used, and some have speculated that they are used to confirm and feedback the integrity of the graphics card power connection.
If the power supply is not equipped with a PCIe 5.0 external power supply interface, the user can also use the adapter cable to achieve the same effect through three 8Pin external power supplies, which can be used on the next generation of graphics cards. Of course, the wire using the PCIe 5.0 external power supply interface is always more convenient on the wiring, and the space occupied will be smaller.
Previously, a number of power supply manufacturers have released new products equipped with a new PCIe 5.0 external power supply interface, among which Cool Extreme even launched an SFX Platinum power supply with a rated power rating of 1300W for building a new generation of high-performance Mini-ITX systems, compared with the current commercially available SFX power supply, the increase is very amazing.