Z790 Steel Legend WiFi
Steel Legend represents the philosophical state of rock-solid durability and irresistible aesthetics. Built around most demanding specs and features, the Steel Legend series aims at daily users and mainstream enthusiasts! Providing a strong array of materials/components to ensure a stable and reliable performance.

Optimized VRM Design
SPS (Smart Power Stage)
Dr.MOS design features the latest SPS (Smart Power Stage) technology. It’s optimized for monitoring current and temperature of each phase, thus delivering smoother and neater power to the CPU with enhanced performance and OC capability.
16+1+1 Power Phase Design
Featuring sturdy components and completely smooth power delivery to the CPU. Plus, it offers unmatched overclocking capabilities and enhanced performance with the lowest temperature for advanced gamers as well.
6 Layer PCB
The 6 Layer PCB provides stable signal traces and power shapes delivering lower temperature and higher energy efficiency, ensures a reliable and long-lasting system while delivering ultimate performance without any compromise.
2oz Copper PCB
2 ounce copper inner-800 layers that provide stable signal traces and power shapes! Delivering lower temperature and higher energy efficiency for overclocking.

DDR5 XMP & EXPO Support
Derived from the “built for stable and reliable” designing concept, ASRock does not compromise on any details. This motherboards is built with low-loss materials, enthusiasts are able to enjoy the boost of DDR5 memory overclocking performance by enabling the pre-tested profiles. Make sure the memory modules are Intel® XMP/AMD EXPO™ capable and overclocking can be made so affordable, satisfying and absolutely no sweat at all.

CPU
- Supports 13th Gen and 12th Gen and next gen Intel Core^TM Processors (LGA1700)
- Supports Intel Hybrid Technology
- Supports Intel Turbo Boost Max 3.0 Technology
- Supports Intel Thermal Velocity Boost (TVB)
- Supports Intel Adaptive Boost Technology (ABT)

Chipset
- Intel Z790

Memory
- Dual Channel DDR5 Memory Technology
- 4 x DDR5 DIMM Slots
- Supports DDR5 non-ECC, un-buffered memory up to 7200+(OC)
- Max. capacity of system memory: 192GB
- Supports Intel Extreme Memory Profile (XMP) 3.0
Notes:
1DPC 1R Up to 7200+ MHz (OC), 4800 MHz Natively.
1DPC 2R Up to 6000+ MHz (OC), 4400 MHz Natively.
2DPC 1R Up to 5600+ MHz (OC), 4000 MHz Natively.
2DPC 2R Up to 4800+ MHz (OC), 3600 MHz Natively.

BIOS
- 256Mb AMI UEFI Legal BIOS with GUI support

Graphics
- Intel Xe Graphics Architecture (Gen 12)
- 1 x eDP 1.4, supports max. resolution up to Full HD 60Hz
- 1 x HDMI 2.1 TMDS Compatible, supports HDCP 2.3 and max. resolution up to 4K 60Hz
- 1 x DisplayPort 1.4 with DSC (compressed), supports HDCP 2.3 and max. resolution up to 8K 60Hz / 5K 120Hz
¹Intel UHD Graphics Built-in Visuals and the VGA outputs can be supported only with processors which are GPU integrated.

Audio
- 7.1 CH HD Audio (Realtek ALC897 Audio Codec)
- Nahimic Audio

LAN
- 2.5 Gigabit LAN 10/100/1000/2500 Mb/s
- Dragon RTL8125BG
- Supports Dragon 2.5G LAN Software
- Smart Auto Adjust Bandwidth Control
- Visual User Friendly UI
- Visual Network Usage Statistics
- Optimized Default Setting for Game, Browser, and Streaming Modes
- User Customized Priority Control

Wireless LAN
- 802.11ax Wi-Fi 6E Module
- Supports IEEE 802.11a/b/g/n/ac/ax
- Supports Dual-Band 2x2 with extended 6GHz band support¹
- 2 antennas to support 2 (Transmit) x 2 (Receive) diversity technology
- Supports Bluetooth + High speed class II
- Supports MU-MIMO
¹Wi-Fi 6E (6GHz band) will be supported by Microsoft Windows 11. The availability will depend on the different regulation status of each country and region. It will be activated (for supported countries) through Windows Update and software updates once available.
A 6GHz compatible router is required for 6E functionality.

Slots
CPU:
- 1 x PCIe 5.0 x16 Slot (PCIE1), supports x16 mode¹
Chipset:
- 1 x PCIe 4.0 x16 Slot (PCIE2), supports x4 mode¹
- 1 x PCIe 3.0 x16 Slot (PCIE3), supports x2 mode¹
- 1 x M.2 Socket (Key E), supports type 2230 WiFi/BT PCIe WiFi module and Intel CNVio/CNVio2 (Integrated WiFi/BT)
- Supports AMD CrossFire^TM
- 15mu Gold Contact in VGA PCIe Slot (PCIE1)
¹If M2_2 is occupied, PCIE1 will downgrade to x8 mode.
Supports NVMe SSD as boot disks

Storage
CPU:
- 1 x Hyper M.2 Socket (M2_1, Key M), supports type 2260/2280 PCIe Gen4x4 (64 Gb/s) mode¹
- 1 x Blazing M.2 Socket (M2_2, Key M), supports type 2260/2280 PCIe Gen5x4 (128 Gb/s) mode¹
Chipset:
- 1 x Hyper M.2 Socket (M2_3, Key M), supports type 2242/2260/2280 PCIe Gen4x4 (64 Gb/s) mode¹
- 1 x Hyper M.2 Socket (M2_4, Key M), supports type 2242/2260/2280 PCIe Gen4x4 (64 Gb/s) mode¹
- 1 x Hyper M.2 Socket (M2_5, Key M), supports type 2260/2280 PCIe Gen4x4 (64 Gb/s) mode¹
- 8 x SATA3 6.0 Gb/s Connectors
¹Supports Intel Volume Management Device (VMD)
Supports NVMe SSD as boot disks
If M2_2 is occupied, PCIE1 will downgrade to x8 mode.
M2_1 and M2_2 cannot be populated simultaneously.

RAID
- Supports RAID 0, RAID 1, RAID 5 and RAID 10 for SATA storage devices
- Supports RAID 0, RAID 1 and RAID 5 for M.2 NVMe storage devices

USB
- 1 x USB 3.2 Gen2x2 Type-C (Front)
- 1 x USB 3.2 Gen2 Type-C (Rear)
- 1 x USB 3.2 Gen2 Type-A (Rear)
- 12 x USB 3.2 Gen1 (8 Rear, 4 Front)
- 3 x USB 2.0 (3 Front)
¹All USB ports support ESD Protection

Connector
- 1 x eDP Signal Connector
- 1 x SPI TPM Header
- 1 x Power LED and Speaker Header
- 1 x RGB LED Header¹
- 3 x Addressable LED Headers²
- 1 x CPU Fan Connector (4-pin)³
- 1 x CPU/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control)⁴
- 5 x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan Speed Control) ⁵
- 1 x 24 pin ATX Power Connector (Hi-Density Power Connector)
- 2 x 8 pin 12V Power Connectors (Hi-Density Power Connector)
- 1 x Front Panel Audio Connector (15mu Gold Audio Connector)
- 1 x Thunderbolt^TM AIC Connector (5-pin) (Supports ASRock Thunderbolt^TM 4 AIC Card)
- 2 x USB 2.0 Headers (Support 3 USB 2.0 ports)
- 2 x USB 3.2 Gen1 Headers (Support 4 USB 3.2 Gen1 ports)
- 1 x Front Panel Type C USB 3.2 Gen2x2 Header (20 Gb/s)
¹Supports in total up to 12V/3A, 36W LED Strip
²Support in total up to 5V/3A, 15W LED Strip
³CPU_FAN1 supports the fan power up to 1A (12W).
⁴CPU_FAN2/WP supports the fan power up to 2A (24W).
⁵CHA_FAN1-5/WP support the fan power up to 2A (24W).
⁵CPU_FAN2/WP and CHA_FAN1-5/WP can auto detect if 3-pin or 4-pin fan is in use.

Rear Panel I/O
- 2 x Antenna Ports
- 1 x HDMI Port
- 1 x DisplayPort 1.4
- 1 x Optical SPDIF Out Port
- 1 x USB 3.2 Gen2 Type-A Port (10 Gb/s)
- 1 x USB 3.2 Gen2 Type-C Port (10 Gb/s)
- 8 x USB 3.2 Gen1 Ports
- 1 x RJ-45 LAN Port
- HD Audio Jacks: Rear Speaker / Central / Bass / Line in / Front Speaker / Microphone (Gold Audio Jacks)

Software and UEFI
Software
- ASRock Motherboard Utility (A-Tuning)
- ASRock Dragon 2.5G LAN Software
- ASRock Polychrome SYNC¹
UEFI

- ASRock EZ Mode
- ASRock Full HD UEFI
- ASRock My Favorites in UEFI
- ASRock Auto Driver Installer
- ASRock Instant Flash
- ASRock Easy RAID Installer
¹These utilities can be downloaded from ASRock Live Update and APP Shop.

Accessories
- 1 x User Manual
- 2 x SATA Data Cables
- 1 x ASRock WiFi 2.4/5/6 GHz Antenna
- 4 x Screws for M.2 Sockets
- 1 x Graphics Card Holder

Form Factor
- ATX Form Factor: 12.0-in x 9.6-in, 30.5 cm x 24.4 cm
- 2oz Copper PCB

OS
- Microsoft Windows 10 64-bit / 11 64-bit
¹Windows 10 only supports version 21H2 or later

Certifications
- FCC, CE
- ErP/EuP ready (ErP/EuP ready power supply is required)
- CEC Tier II ready

Item Dimension (L inchxW inchxH inch)
16 x 13 x 4

Weight
6 lbs

Warranty Information
3 Years