ASRock motherboard expansion card exposure: built-in chipset to change B650 into "X670"

Thanks to CTOnews.com netizen OC_Formula for the clue delivery! CTOnews.com, January 20, according to VideoCardz, ASRock has developed a motherboard expansion card with a built-in Promontory21 chipset that can be extended to "X670" when installed on the B650 motherboard.

Tu Yuan Level1Techs reported that the B650 LiveMixer motherboard package received by Level1Techs included this unsold motherboard expansion card.

CTOnews.com learned that the AMD X670 motherboard uses two Promontory21 chipsets, while the B650 series has only one. Therefore, ASRock wants to expand the B650 to a specification similar to the X670 by adding a chipset directly to the expansion card.

This expansion card with its own chipset has two PCIe x4 NVME M.2 slots, three USB Type-A, one USB Type-C, two SATA connectors and a 10G network port.

It should be noted that this expansion card is only suitable for some motherboards of ASRock and requires a special interface connection.