ASUS ROG Maximus Z890 Apex Motherboard

Key Features

• Form Factor: ATX
• Socket: Intel LGA1851 (Intel 1851)
• Chipset: Intel Z890
• CPU Support: Intel Core Ultra 200S (see CPU compatibility list)

Memory

• Slots: 2× DDR5 DIMM, Dual‑Channel
• Max Capacity: 128GB UDIMM Non‑ECC
• Speeds: DDR5‑5600 UDIMM / DDR5‑6400 CUDIMM (Core Ultra 200S)
• Overclocking: Up to DDR5‑9600 OC
• ECC Support: No

Expansion Slots

• PCIe:
  • 2× PCIe 5.0 x16 (x16/x0 or x8/x8)
  • 2× PCIe 4.0 x4

Storage

• M.2 Slots:
  • 1× PCIe 5.0 x4 (22110/2280/2260/2242)
  • 2× PCIe 5.0 x4 (2280/2260/2242)
  • 1× PCIe 4.0 x4 (2280/2260/2242)
  • 2× PCIe 4.0 x4 (DIMM.2, 22110/2280/2260/2242/2230)
  • 1× M.2 E‑Key (2230, WiFi+BT module installed)
• SATA: 4× SATA 6Gb/s
• RAID: 0 / 1 / 5 / 10

External Connectivity

• 2× Thunderbolt 4 / USB4 (DP 2.1, 40Gb/s, 15W PD‑Out, iGPU)
• 1× USB‑C 3.2 (20Gb/s)
• 4× USB‑A 3.1 (10Gb/s)
• 4× USB‑A 3.0 (5Gb/s)
• 1× Toslink S/PDIF Out (Realtek ALC4080)
• 2× 3.5mm audio jacks (Realtek ALC4080)
• 1× RJ‑45 (5GBase‑T, Realtek)
• 1× PS/2 combo
• 2× Quick Connect antenna ports

Internal USB Headers

• 1× USB 3.2 Key‑A (20Gb/s, PD‑Out 60W, QC4+, USB‑C)
• 1× USB 3.1 Key‑A (10Gb/s, USB‑C)
• 2× USB 3.0 20‑Pin (5Gb/s, 4× USB‑A)
• 2× USB 2.0 9‑Pin (480Mb/s, 4× USB‑A)

Cooling & Sensors

• 2× CPU Fan (4‑Pin PWM)
• 5× System Fan (4‑Pin PWM)
• 1× AIO Pump (4‑Pin PWM)
• 1× Pump Header (4‑Pin PWM)
• 1× Thermal Sensor Header

Power Connectors

• 1× 24‑Pin ATX
• 2× 8‑Pin EPS12V
• 1× 8‑Pin PCIe

Lighting

• 3× 3‑Pin ARGB (ASUS Gen2, 5V, max 3A)
• RGB Zones: 2 (I/O cover, left side)

Buttons & Switches

• External: Clear CMOS, USB BIOS Flashback
• Internal: RSVD switches (×2), BCLK buttons (×4), Alternative PCIe mode, BIOS switch, FlexKey, Pause, Power, Retry, SafeBoot, SlowMode

Audio

• Realtek ALC4080
• AMP: Savitech SV3H712
• ASUS SupremeFX
• Audio‑grade solid capacitors

Networking

• LAN: Realtek 5Gb Ethernet
• Wireless: Wi‑Fi 7 (Intel BE200, 2×2)
• Bluetooth: 5.4

VRM & Power Design

• VRM: 22+1+2+2+1 design
• CPU Phases: 23 virtual (2×11+1), 12 real (11+1)
• MOSFETs:
  • VCORE: 22× 110A
  • SOC/VCCGT: 1× 90A
  • Other MOSFETs: 2× 90A
  • VNNAON: 2× 80A
  • VDD/Memory: 1×

BIOS

• Dual BIOS
• 2× 32MB (256Mb)

Special Features

• Integrated I/O shield
• Backplate
• White‑build compatible (white PCB)
• Voltage measurement points
• Diagnostic LEDs + segment display
• 6× M.2 passive heatsinks