The Asus Prime Z890M-Plus WiFi is built around the LGA 1851 socket and Z890 chipset, housed in a Micro-ATX form factor measuring 244 mm × 244 mm. It supports a single CPU and does not include an integrated processor or integrated graphics. Wireless connectivity covers a wide range of standards, from Wi-Fi 4 through to Wi-Fi 7 (802.11be), and Bluetooth 5.4 is also built in, though aptX is not supported. Video output is available via HDMI 2.1, and the board features RGB lighting and dual BIOS for added resilience. Overclocking is flagged as straightforward, while BIOS reset via a dedicated clear CMOS mechanism is not available. The board does not support integrated graphics and carries a three-year warranty.
This board supports DDR5 memory across four slots in a dual-channel configuration, with a maximum capacity of 256GB. Overclocked RAM speeds can reach up to 8666 MHz, offering headroom for performance-oriented memory kits. ECC memory is not supported.
The rear I/O panel provides a reasonable spread of USB connectivity, including one USB 3.2 Gen 2 Type-A port, four USB 3.2 Gen 1 Type-A ports, two USB 2.0 ports, and one USB 3.2 Gen 2x2 port — the latter delivering speeds up to 20Gbps via USB-C. There are no USB 4, Thunderbolt 3, or Thunderbolt 4 ports, and no USB 3.2 Gen 1 or Gen 2 Type-C ports beyond the Gen 2x2 connection. Display output is handled through one HDMI port and one DisplayPort output, with no DVI or VGA connectors present. Networking is covered by a single RJ45 port, and there are no eSATA or PS/2 ports included.
Internal storage connectivity is well covered, with three M.2 sockets and six SATA 3 connectors available for drives, while SATA 2 and U.2 sockets are absent, and there is no mSATA connector. For USB expansion headers, the board offers two USB 3.2 Gen 1 connectors, two USB 3.0 connectors, and four USB 2.0 connectors, allowing a good range of front-panel and add-in port configurations. Cooling is supported through six fan headers, and a TPM connector is present for security module support.
The board offers one PCIe 5.0 x16 slot and three PCIe 4.0 x16 slots for expansion cards, covering the most current interface generations. There are no PCIe 3.0, PCIe 2.0, PCIe x8, PCIe x4, or PCIe x1 slots, and no legacy PCI slots are present.
The board provides 7.1-channel audio output through three analog audio connectors on the rear panel. There is no S/PDIF digital output port included.
The board supports RAID 0, 1, 5, and 10 configurations, providing flexibility for both performance-oriented and redundancy-focused storage setups. RAID 0+1 is not supported.