Overview
12VHPWR is a high-power auxiliary power connector standard developed for graphics cards that require substantial power delivery through a compact connection. The connector combines 12 larger power contacts with four smaller sideband signal contacts in a single 16-pin interface.
The connector is associated with PCI Express graphics hardware and power supplies designed to support the 12VHPWR interface. Compatible cable assemblies may connect a graphics card to a power supply directly or through an appropriate adapter. Actual compatibility depends on the power supply model, cable pinout, graphics card requirements, and manufacturer specifications.
The PCI Express specification describes a 600 W cable assembly capability for the 12VHPWR interface. This is a standard-level capability, not a verified rating for an unspecified cable or connector product. Buyers should confirm the manufacturer's rated power, wire gauge, connector construction, and supported hardware before purchasing.
12VHPWR should not be confused with 12V-2x6, its successor connector design. Although the two interfaces are related, buyers must verify the connector and cable requirements of the specific graphics card and power supply.
Key Features
16-pin interface: Combines 12 power contacts and four signal contacts.
High-power delivery: Standard cable assemblies can support up to 600 W.
Graphics card connectivity: Designed for compatible high-power GPU systems.
Compact connection: Combines power and signal contacts in one interface.
System compatibility: Requires verification of GPU and PSU requirements.
Technical Specifications
| Specification | Details |
|---|
| Brand | Not specified |
| Manufacturer Part Number | Not provided |
| Product Name | 12VHPWR power connector standard |
| Product Category | GPU auxiliary power connector |
| Interface Type | PCI Express auxiliary power |
| Total Connector Contacts | 16 |
| Power Contacts | 12 |
| Sideband Signal Contacts | 4 |
| Standard Cable Assembly Power Capability | Up to 600 W, subject to specification and implementation |
| Power Pin Wire Gauge | 16 AWG as specified in the Intel design guide |
| Signal Wire Gauge | 28 AWG as specified in the Intel design guide |
| Typical Application | Compatible graphics cards and GPU power systems |
| Connector Successor | 12V-2x6 |
| Cable Length | Not specified |
| Warranty | Not specified |
Product Note
This listing describes the 12VHPWR connector standard, not a verified manufacturer-specific cable or accessory. No exact manufacturer, part number, cable length, color, warranty, or product-specific compatibility information was supplied. Confirm the actual product identity and manufacturer documentation before using this content for a purchasable SKU.
For installation, use only cables approved for the exact power supply model. Modular PSU cables are not universally interchangeable, even when their connectors appear physically compatible. Ensure the connector is fully inserted and latched, and follow the graphics card and power supply manufacturers' installation and cable-bending guidance.
Frequently Asked Questions
What is a 12VHPWR connector?
12VHPWR is a high-power auxiliary connector standard used by compatible graphics cards. Its 16-pin interface combines 12 power contacts with four smaller signal contacts.
How much power can 12VHPWR support?
The PCI Express specification describes a cable assembly capable of supporting up to 600 W. The actual rating of a retail cable or adapter must be confirmed from its manufacturer documentation.
Is 12VHPWR compatible with every graphics card?
No. Compatibility depends on the graphics card's power connector and the power supply or approved adapter being used. Check the hardware manufacturer's requirements before ordering.
Is 12VHPWR the same as 12V-2x6?
No. 12V-2x6 is a successor design with changes intended to improve connection safety and insertion detection. Verify which connector type the specific hardware requires.
Can I use any modular power supply cable with this connector?
No. Modular power supply cables can have different PSU-side pinouts even when connectors look similar. Use only a cable explicitly approved for the exact power supply model.
What should I verify before purchasing a 12VHPWR cable?
Confirm the manufacturer and part number, GPU compatibility, PSU compatibility, rated power, wire gauge, cable length, connector type, and warranty. These details cannot be established from the term 12VHPWR alone.
