Specifications

The PSU is only 160 mm long, which is pretty small for an 850W PSU. Also it features overcurrent protection although it has a 70A +12V rail.


Since AX850 uses DC-DC converters to generate the minor rails, it can output almost all of its capacity on the single +12V rail.

Cables & Connectors, Power Distribution

The AX850 has four PCIe connectors in separate cables so it can support up to two hi-end VGAs. The distance between the connectors is the recommended by ATX, 150mm. The main ATX, PCIe and EPS connectors use 16 AWG wires while the SATA and peripheral connectors use 18 AWG. In the above scheme you see two instances of "FDD adapter". These are 100 mm long separate cables and can be connected to a Molex to provide a floppy power connector, they use 22 AWG wires.

Since this PSU features a single +12V rail there is nothing to say about its power distribution.