Gigabyte unveils its first PCIe Gen5 power supply but doesn’t know what to call the new power cable

Gigabyte UD1000GM PG5 is the company’s first PCIe Gen5 compatible power supply

Another company unveils its PCIe Gen5 compatible power supply, but this is just another example of the confusion surrounding the new PCIe Gen5 power cable.

Gigabyte UDM1000GM PG5 is a 1000W power supply with an 80+ Gold efficiency certification. It is a compact power supply with fully modular connectors. Among these connectors is the new power supply standard for next-generation GPUs.

The PCIe Express 5.0 specification defines a new power connector and cable officially known as the 12VHPWR specification. The problem is that power supply manufacturers have no idea what to call it. The most recent example comes from Gigabyte which has just announced its UD1000GM PG5 power supply.

The company uses up to four different names for this new connector/cable configuration:

  • PCIe Gen5 Cable
  • 12+4 pin cable
  • 16 pin cable
  • 12VHPWR

Technically, they’re all correct, but the market really should have a unique, easy-to-remember name. We already have 6-pin, 6+2-pin, 8-pin and 12-pin power cables, so naturally one would expect 16-pin to be widely adopted, however, that’s not “technically” a 16-pin power cable, but a combination of 12-pin power/ground connectors and 4 data cables to ensure safety and compliance with PCIe Gen full 600W specifications.

The confusion is illustrated by the Gigabyte product page, which uses all of these names simultaneously and interchangeably:

The struggle is real: PCIe Gen5 power cable naming dilemma, Source: Gigabyte

As for the power supply itself, it is a new variant of the existing model. The new version simply replaces two 8-pin power connectors with a single 12+4-pin cable.

The difference between UD1000GM PG5 and UD1000GM, Source: Gigabyte

There is currently no price or release date information for the UDM1000GM PG5 power supply. With the announcement of ASUS Loki, MSI MPG/MEG and CoolerMaster Gen5 compatible supplies, customers will be spoiled for choice once the NVIDIA GeForce RTX 3090 Ti launches, supposedly the first card to comply with this standard.

Source: gigabyte



Alan A. Seibert