The ROG MAXIMUS XI APEX is an ATX motherboard based on the Intel Z390 chipset, supporting LGA 1151 socket CPUs. It features two DDR4 memory slots with a maximum capacity of 64 GB in dual-channel configuration. Expansion includes two PCIe 3.0 x16 slots, one PCIe 3.0 x16 (x4 mode), and one PCIe 3.0 x1 slot. Storage options comprise two M.2 slots and six SATA ports. Rear USB connectivity offers four USB 3.1 Gen 2, six USB 3.1 Gen 1, and four USB 2.0 ports. Networking is provided by an Intel I219V Gigabit LAN controller and Intel Wireless-AC 9560 Wi-Fi supporting 802.11 a/b/g/n/ac. Audio is handled by the ROG SupremeFX 7.1-Channel High Definition Audio CODEC.

Specifications

Chipset	Intel Z390
CPU socket	LGA 1151
Form factor	ATX
Memory slots	2
Memory type	DDR4
Max memory	64 GB
Memory channels	2
PCIe slots	2 x PCIe 3.0 x16, 1 x PCIe 3.0 x1, 1 x PCIe 3.0 x16
M.2 slots	2
SATA ports	6
USB ports (rear)	4 x USB 3.1 Gen 2, 6 x USB 3.1 Gen 1, 4 x USB 2.0
Ethernet	Intel I219V, 1 x Gigabit LAN
Wi-Fi	Intel Wireless-AC 9560, Wi-Fi 802.11 a/b/g/n/ac
Audio codec	ROG SupremeFX 7.1-Channel High Definition Audio CODEC