Corsair Now Offers 12VHPWR Connector Modular Cable Capable of Delivering Up to 600W
The cable is compatible with PCI Express 5.0 which conforms to the ATX 3.0 standard, also used for the power supply of the latest high-end graphics cards. When connected to a CORSAIR power supply unit of 1200W or more, the full power of 600W can be supplied.
CORSAIR introduced a power modular cable "600W PCIe 5.0 12VHPWR Type-4 PSU Power Cable" with a 12VHPWR connector compatible with the current full modular power supply unit on September 22, 2022 (local time).
The 12VHPWR connection cable is compatible with PCI Express 5.0 and corresponds to the ATX 3.0 standard, and it is also used to power the latest GPU "GeForce RTX 4090." The graphics card has an adapter that transforms the PCI Express 8pin to 12VHPWR connector, but if you use the cable introduced this time, you can connect to the current high-end graphics card without using an adapter. The new power modular cable is backwards compatible with all current CORSAIR Type-4 full modular power supply devices. A single cable may offer up to 600W of power, and when linked to a 1200W or higher CORSAIR power supply unit, full power of 600W can be given. Furthermore, power supply units of 1000W or more can be supplied with up to 450W, while models of 750W or more can be supplied with up to 300W.
Global shipments will begin on September 29th.
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Senior Member
Posts: 5533
Joined: 2017-11-23
Well yours is the older ax non-i 1000w... that's a very old psu by now.
Senior Member
Posts: 2547
Joined: 2006-04-10
Yep, ancient at 3 yrs old

I could buy a Corsair 1000w PSU tomorrow and the support statement is exactly the same, Corsair say I can't use 600W with their 12VHPWR cable.
AIBs like Gigabyte are bundling 4x8pin to 12VHPWR with their 4090s..... So not sure who will actually need one of these Corsair cables anyway.
Senior Member
Posts: 139
Joined: 2005-11-14
Yep, ancient at 3 yrs old

I could buy a Corsair 1000w PSU tomorrow and the support statement is exactly the same, Corsair say I can't use 600W with their 12VHPWR cable.
AIBs like Gigabyte are bundling 4x8pin to 12VHPWR with their 4090s..... So not sure who will actually need one of these Corsair cables anyway.
Well as far as I can understand these cables connect directly to the PSU so you don't have to use unreliable adapters and additionally from what I've heard is that since they connect directly to the PSU side they can draw double (300w) the power that a normal PCI-E cable can do on the GPU side of things. (again not sure on the latter part but for the former there's a lot of people that want to avoid any adaptors).
Senior Member
Posts: 134
Joined: 2009-02-12
"The cable is compatible with PCI Express 5.0 which conforms to the ATX 3.0 standard"
I don't think this sentence is correct, because the extra pins for communication cannot work, they don't exist on the power supply side, a "non intelligent power" supply doesn't became just with a cable adapter.
Senior Member
Posts: 2547
Joined: 2006-04-10
They say that my platinum 1000W PSU isn't suitable for more than 450W o_O