Mainboard|ASROCK|Intel B860 Express|LGA1851|ATX|Memory DDR5|Memory slots 4|1xPCI-Express 4.0 16x|1xPCI-Express 5.0 16x|1xM.2|1xHDMI|1xDisplayPort|1xAudio-Out|1xMicrophone|3xUSB 2.0|6xUSB 3.2|1xUSB-C w/Thunderbolt|1xOptical S/PDIF|1xRJ45|B860STEELLEGENDWIFI

Performance
Optimized VRM Design
20K Capacitor
Exclusive 20K Cap with 1000uF Capacitance
The upgraded 20K Black capacitor not only extends the lifespan to 20.000 hours but also increases the capacitance value from 560uF to 1000uF, bringing several benefits:
- Higher Capacitance: Greater charge storage for better support under high loads.
- Lower Ripple: Reduced power output fluctuations, improving quality.
- More Stable Output Current: Stable power supply, minimizing voltage impacts.
- Better Performance & System Stability: Increased reliability and consistent performance.

VRM Design
14+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.

Dr. MOS
Dr.MOS is the integrated power stage solution which is optimized for synchronous buck-set down voltage applications! Compared to traditional discrete MOSFETs, it intelligently delivers higher current for each phase, thus providing improved thermal result and superior performance.

Power Connector
Hi-Density Power Connector
CPU overclocking requires higher current. ASRock Hi-Density Power Connectors are designed to withstand higher currents compared to traditional CPU and ATX power connectors, providing a more stable system and reducing the risk of fire during heavy overclocking.

2oz Copper PCB
2 ounce copper inner 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 motherboard is built with high quality 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.

High Speed M.2 Solution
PCIe Gen5 Blazing M.2
The Blazing M.2 accommodates the latest PCI Express 5.0 standard to perform twice the bandwidth compared to previous generation, with a breathtaking 128Gb/s transfer speed, it is ready to unleash the full potential of future ultrafast SSDs.

Hyper M.2 Gen4 x4
Supports PCI Express 4.0 M.2 SSDs, it is capable of perform twice the speed compared to previous 3rd generation, giving a lightning fast data transferring experience.

DIY Friendly Design
Graphics Card Lite Release
Equipped with an enlarged latch for easy pressing, simplifying both the installation and removal of graphics cards.

M.2 Heatsink Toolless Design
Besides the M.2 SSD toolless design on the motherboard, ASRock up a notch by introducing this industry first M.2 heatsink quick release mechanism on the motherboard. The user friendly toolless design helps installing M.2 SSD super easy & simple.

M.2 Bottom Heatsink
The M.2 bottom heatsink is able to dissipate heat of the M.2 SSD efficiently through the motherboard PCB, maximize performance while maintaining system stability.

Enlarged M.2 Heatsink
XXL M.2 Heatsink
The extra large aluminum alloy M.2 heatsink effectively improves heat dissipation to keep those high speed M.2 SSDs as cool as possible, it is able to give better stability while maintaining top performance.

Anti-Drop Screw
Tired of dropping screws or screws missing inside chassis?
The enhanced M.2 heatsink with anti-drop screw design that make sure installation process more easily.

Cooling
Intelligent Cooling Design
Aluminum Heatsink
The first thing that catches the eye is the optimized Aluminum Heatsink Design. Heatsinks are crucial for efficient heat dissipation, especially during heavy workloads like gaming or productivity tasks. Motherboard that built with heatsinks can effectively manage thermal performance, hence ensure system stability and durability effortlessly.

PWM/DC Fan Support
ASRock fan headers automatically detect whether fans are running in DC or PWM mode, allowing users to fine-tune the fan curve and achieve quieter operation.

Thermistor Header
The thermistor cable and thermistor header provide an additional source for temperature monitoring, offering customized thermal management solutions based on workload. Thermal management settings can be easily configured via Fan-Tastic Tuning or UEFI.

Fan-Tastic Tuning
ASRock A-Tuning Fan-Tastic Tuning function enables users to auto-detect the minimum duty of each fan with a single click. Users can also easily adjust the fan curve via the visualized UI interface, meeting their system's cooling performance and noise reduction requirements.

Connectivity
Wi-Fi 6E 802.11axe
WiFi 6E technology has extended to the whole new 6GHz spectrum band, providing more WiFi capability and giving an even better and faster internet traffic. In addition to deliver higher speeds, the WiFi 6E also enhances the lower latency and supports service levels that are equivalent to 5G networks.

Thunderbolt™ 4 Type-C
Thunderbolt™ 4 technology brings speed and versatility to the most advanced USB Type-C, offering a fast and simple level of connection for work or home. It enables lightning-fast data transfer up to 40Gbps and connects external monitors, Thunderbolt™, and USB devices with a single Thunderbolt 4 cable.

Dragon 2.5 Gb/s LAN
The intelligent 2.5Gb/s LAN platform is built for maximum networking performance for the demanding requirements of home networking, content creators, online gamers and high-quality streaming media. Boost networking performance up to 2.5X the bandwidth compared to the standard gigabit Ethernet, you’ll enjoy the faster and uncompromised connectivity experience for gaming, file transfers and backups.

More than USB Transfer Speed
Ultra USB Power
Provides stable power and better sound experience! Ultra USB Power provides 5V power transformed from +12V power rail, whose voltage drop will be much lower than the +5V from the PSU under heavy loading, and prevents noise from other devices or RGB LED.

Front Panel USB 3.2 Gen2x2 Type-C Header
The latest USB 3.2 Gen2x2 Type-C delivers up to 20 Gbps data transfer rate which is 2x as fast as previous generation, providing a blazing fast data transfer interface with reversible USB Type-C design that fits the connector either way.

Nahimic Audio
Audio That Matters
Whether you are using headphones, a headset, external or internal speakers, via USB, Wi-Fi, analog output or even HDMI, Nahimic Audio offers you the most engaging listening experience, vibrant and rich with details.

Enhance Communication Quality
The Powerful algorithms to ensure the best noise-free conversation, giving a constant vocal level no matter the distance from your mic. The Nahimic audio engine dynamically clear the sound and remove interference noise and lower the voice variation. Result is a better comprehension and less fatigue.
- Static Noise Suppression
- Echo Cancellation
- Lateral Sound Cancellation
- Voice Stabilizer

Ultimate Gaming Experience
- Sound Tracker
The Sound Tracker is a visual indicator that points out the directions from which predominant sounds are coming. Each sound is properly positioned in 360° on a radar for a full immersion during the game.

- Works on any devices!
Enjoy the vibrant and high-quality Surround Sound on all your favorite audio devices. Nahimic is compatible with all of your favorite audio tools and ensures the best sound with any of them. Nahimic measure and improve to optimize our technology and offer you the best experience.

Stylish Design
POLYCHROME RGB
This motherboard features onboard RGB headers and addressable RGB headers that allow motherboard to be connected to compatible LED devices such as strip, CPU fans, coolers, chassis and so on. Users may also synchronize RGB LED devices across the Polychrome RGB Sync-certified accessories to create their own unique lighting effects.

SignalRGB
SignalRGB unifies your RGB devices, offering seamless customization, game-reactive effects, macro automation, and system monitoring. The official partnership empowers ASRock motherboards with advanced lighting control, enhances compatibility with a diverse range of RGB devices, and provides greater customization flexibility.

DIY Friendly
Customized Thermal Management
The thermistor cable and thermistor header provide an additional source for temperature monitoring, offering customized thermal management solutions.

EZ Setting
Auto Driver Installer
No need to worry about lack of disk drive! Asrock preinstall LAN driver to ensure that you are able to install all drivers needed in an easier way than using SCD.

BIOS Flashback
Get the most convenient BIOS flashing with just a simple click. Users can easily achieve the latest BIOS support with a USB and a power supply. No CPU, RAM or other components are required.

Flexible Integrated I/O Shield
Unlike most so called pre-mounted I/O shield that is only decorated with fancy color schemes. We reserve more tolerance space and allow IO shield is adjustable when installing, thus fitting chassis perfectly without any mechanical issue.

• Supports Intel® Core™ Ultra Processors (Series 2)
• 14+1+1+1+1 Phase Power Design, 80A Dr.MOS for VCore+GT+SA
• 4 x DDR5 DIMMs, Supports Dual Channel, up to 8666+ (OC)
• 1 PCIe 5.0 x16, 1 PCIe 4.0 x16
• Graphics Output Options: 1 HDMI, 1 DisplayPort, 1 Thunderbolt™ 4 Type-C
• Realtek ALC1220 7.1 CH HD Audio Codec, Nahimic Audio
• 1 Blazing M.2 (PCIe Gen5x4), 2 Hyper M.2 (PCIe Gen4x4), 1 M.2 (PCIe Gen4x2), 4 SATA3
• 1 Thunderbolt™ 4 Type-C (Rear), 1 USB 3.2 Gen2x2 Type-C (Front), 2 USB 3.2 Gen2 (Rear), 8 USB 3.2 Gen1 (4 Rear, 4 Front), 7 USB 2.0 (3 Rear, 4 Front)
• Realtek 2.5G LAN
• 802.11axe Wi-Fi 6E + Bluetooth