ASUS Prime X299-Deluxe II LGA 2066 Intel X299 SATA 3.1 ATX Motherboard

Prime X299-Deluxe II motherboard

The ASUS Prime X299-Deluxe II is an ATX motherboard built around the Intel X299 chipset and LGA 2066 socket. It supports SATA 3.1 connections at 6 Gb/s and USB 3.1 ports for external devices. The board targets enthusiasts building high-end desktop systems on the X299 platform. First listed by the manufacturer on 14 August 2026.

Suits builders using LGA 2066 CPUs and SATA storage

This board fits users who need the X299 chipset feature set with native SATA 3.1 support for multiple hard drives or SATA SSDs. It is not for buyers who require a different CPU socket or a newer chipset generation. It is also not for builders who need M.2 or PCIe storage interfaces that are not confirmed in the supplied data. The ATX form factor requires a compatible case.

Intel X299 chipset with LGA 2066 socket

The single specification that determines compatibility is the combination of the Intel X299 chipset and the LGA 2066 socket. Only processors designed for LGA 2066 will install and function on this motherboard. The X299 chipset defines the platform feature set and lane allocation available to the builder. Verify your CPU matches this socket before purchase.