Model
Brand    ASRock
Model    Z490 Steel Legend
Supported CPU
CPU Socket Type     LGA 1200
CPU Type    Supports 10th Gen and future generation Intel Core Processors (Socket 1200)
Supported CPU Technologies    Turbo Boost Technology 3.0
Chipsets
Chipset     Intel Z490
Onboard Video
Onboard Video Chipset     * Intel UHD Graphics Built-in Visuals and the VGA outputs can be supported only with processors which are GPU integrated.
- Hardware Accelerated Codecs: AVC/H.264, HEVC/H.265 8bit, HEVC/H.265 10bit, VP8, VP9 8bit, VP9 10bit, MPEG 2, MJPEG, VC-1
* VP9 10bit and VC-1 are for decode only.
* VP8 and VP9 encode are not supported by Windows OS.
- Graphics, Media & Compute: Microsoft DirectX 12, OpenGL 4.5, Intel Built In Visuals, Intel Quick Sync Video, Hybrid / Switchable Graphics, OpenCL 2.1
- Display & Content Security: Rec. 2020 (Wide Color Gamut),Microsoft PlayReady 3.0, Intel SGX Content Protection, UHD/HDR Blu-ray Disc
- Dual graphics output: support HDMI and DisplayPort 1.4 ports by independent display controllers
- Supports HDMI 1.4 with max. resolution up to 4K x 2K (4096x2160) @ 30Hz
- Supports DisplayPort 1.4 with max. resolution up to 4K x 2K (4096x2304) @ 60Hz
- Supports Auto Lip Sync, Deep Color (12bpc),xvYCC and HBR (High Bit Rate Audio) with HDMI 1.4 Port (Compliant HDMI monitor is required)
- Supports HDCP 2.3 with HDMI 1.4 and DisplayPort 1.4 Ports
- Supports 4K Ultra HD (UHD) playback with HDMI 1.4 and DisplayPort 1.4 Ports
Memory
Number of Memory Slots    4x288pin (DDR4)
Memory Standard    Supports DDR4 4266+(OC)*/ 4133(OC)/ 4000(OC)/ 3866(OC)/ 3800(OC)/ 3733(OC)/ 3600(OC)/ 3200(OC)/ 2933/ 2800/ 2666/ 2400/ 2133 non-ECC, un-buffered memory
* Please refer to Memory Support List on ASRock's website for more information. (https://www.asrock.com/)
* Core (i9/i7) support DDR4 up to 2933; Core (i5/i3),Pentium and Celeron support DDR4 up to 2666.
Maximum Memory Supported    128GB
** Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows 32-bit OS. For Windows 64-bit OS with 64-bit CPU, there is no such limitation.
Channel Supported     Dual Channel
Expansion Slots
PCI Express 3.0 x16    2 x PCI Express 3.0 x16 Slots (PCIE1/PCIE3: single at x16 (PCIE1); dual at x16 (PCIE1) / x4 (PCIE3)*
* Supports NVMe SSD as boot disks
PCI Express x1    3 x PCI Express 3.0 x1 Slots
Other Slots    1 x M.2 Socket (Key E),supports type 2230 WiFi/BT module and Intel CNVi (Integrated WiFi/BT)
Storage Devices
SATA 6Gb/s     6 x SATA3 6.0Gb/s Connectors, support RAID, NCQ, AHCI and Hot Plug*
* If M2_2 is occupied by a SATA-type M.2 device, SATA3_1 will be disabled.
* If M2_3 is occupied by a SATA-type M.2 device, SATA3_5 will be disabled.
M.2    1 x Ultra M.2 Socket (M2_2),supports M Key type 2260/2280 M.2 SATA3 6.0Gb/s module and M.2 PCI Express module up to Gen3 x4 (32Gb/s)**
1 x Ultra M.2 Socket (M2_3),supports M Key type 2260/2280/22110 M.2 SATA3 6.0Gb/s module and M.2 PCI Express module up to Gen3 x4 (32Gb/s)**
** Supports Intel Optane Technology
** Supports NVMe SSD as boot disks
** Supports ASRock U.2 Kit
Intel Optane Ready    Yes
SATA RAID    RAID 0, RAID 1, RAID 5, RAID 10, Intel Rapid Storage Technology 17
Onboard Audio
Audio Chipset     Realtek ALC1200
Audio Channels     7.1 Channels
Onboard LAN
LAN Chipset    Dragon RTL8125BG
Max LAN Speed    2.5Gbps
Rear Panel Ports
Back I/O Ports    2 x Antenna Mounting Points
1 x PS/2 Mouse/Keyboard Port
1 x HDMI Port
1 x DisplayPort 1.4
1 x Optical SPDIF Out Port
2 x USB 2.0 Ports (Supports ESD Protection)
1 x USB 3.2 Gen2 Type-A Port (10Gb/s) (ReDriver) (Supports ESD Protection)
1 x USB 3.2 Gen2 Type-C Port (10Gb/s) (ReDriver) (Supports ESD Protection)
2 x USB 3.2 Gen1 Ports (Intel Z490) (Supports ESD Protection)
* Ultra USB Power is supported on USB3_12 ports.
* ACPI wake-up function is not supported on USB3_12 ports.
1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)
HD Audio Jacks: Rear Speaker / Central / Bass / Line in / Front Speaker / Microphone (Gold Audio Jacks)
Internal I/O Connectors
Onboard USB    2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Intel Z490) (Supports ESD Protection)
2 x USB 3.2 Gen1 Headers (Support 4 USB 3.2 Gen1 ports) (ASMedia ASM1074 hub) (Supports ESD Protection)
1 x Front Panel Type C USB 3.2 Gen1 Header (Intel Z490) (Supports ESD Protection)
Other Connectors    1 x SPI TPM Header
1 x Power LED and Speaker Header
2 x RGB LED Headers
* Support in total up to 12V/3A, 36W LED Strip.
2 x Addressable LED Headers
* Support in total up to 5V/3A, 15W LED Strip.
1 x CPU Fan Connector (4-pin)
* The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power.
1 x CPU/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control)
* The CPU/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power.
5 x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan Speed Control)
* The Chassis/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power.
* CPU_FAN2/WP_3A, CHA_FAN1/WP, CHA_FAN2/WP, CHA_FAN3/WP, CHA_FAN4/WP and CHA_FAN5/WP can auto detect if 3-pin or 4-pin fan is in use.
* CPU_FAN2/WP_3A supports the water cooler fan of maximum 3A (36W) fan power.
1 x Front Panel Audio Connector
1 x Thunderbolt AIC Connector (5-pin) (Supports ASRock Thunderbolt 3 AIC R2.0 Card only)
Physical Spec
Form Factor    ATX
LED Lighting    RGB
Dimensions (W x L)    12.0" x 9.6"
Power Pin    1 x 24-pin ATX Power Connector (Hi-Density Power Connector)
1 x 8-pin 12V Power Connector (Hi-Density Power Connector)
1 x 4-pin 12V Power Connector (Hi-Density Power Connector)
Windows Compatibility
Windows 11    Supported