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Compact square mini-ITX motherboard with dark heatsinks and silver CPU installed

ASUS

ASUS ROG STRIX B860-I GAMING WIFI Intel motherboard & Ultra 5 245K CPU combo

SKU CH-4F5S-XY2NV

Mini-ITX B860 board paired with an Intel Ultra 5 245K CPU and Shin-Etsu thermal grease, LGA 1851 socket, DDR5 up to 9066 MT/s, 96 GB max, PCIe 5.0 x16, two M.2 slots, 2.5 Gb LAN, WiFi7.

  • CPU Socket TypeLGA 1851
  • ChipsetIntel B860
  • Number of Memory Slots2x288pin (DDR5)
  • Memory StandardUp to 9066+MT/s (OC)
  • Maximum Memory Supported96GB
  • Channel SupportedDual Channel

model ROG STRIX B860-I GAMING WIFI

+CPU +Ultra 5 245K

  • Ready for Intel Core Ultra Series 2 on LGA 1851 socket
  • 10+1+2+1 power stages rated at 80A each for stable delivery
  • DDR5 up to 9066 MT/s with AEMP III and DIMM Fit
  • PCIe 5.0 x16 slot plus M.2_1 at PCIe 5.0 x4 and M.2_2 at PCIe 4.0 x4
  • 5G LAN, WiFi7 and Bluetooth 5.4 with Thunderbolt 4 on rear I/O

Ready for Intel Core Ultra Series 2

The ASUS ROG STRIX B860-I GAMING WIFI motherboard pairs with an Intel Ultra 5 245K processor in a single kit that also includes Shin-Etsu X-23-7868-2D thermal grease. The board uses the Intel B860 chipset and an LGA 1851 socket on a Mini-ITX form factor. It is built for users who want a compact platform ready for advanced AI workloads and high-speed memory.

Compact build with dual M.2 and Thunderbolt 4

Two DDR5 slots support up to 96GB in dual-channel mode at speeds up to 9066 MT/s with XMP and AEMP III profiles. The board provides one PCIe 5.0 x16 SafeSlot for a graphics card and two M.2 slots: one PCIe 5.0 x4 for 2260/2280 drives with a large heatsink and one PCIe 4.0 x4 for 2242/2260/2280 drives. Four SATA 6Gb/s ports add further storage options. Rear I/O includes a Thunderbolt 4 USB Type-C port, one USB 20Gbps Type-C, one USB 10Gbps Type-A, three USB 5Gbps Type-A, two USB 2.0 Type-A, HDMI 2.1, DisplayPort, 2.5Gbps LAN, WiFi7 and Bluetooth 5.4.

Sustained load on a 125W CPU with robust VRM

The Intel Ultra 5 245K runs at a 125W base power with 24MB L3 cache and 26MB L2 cache on a 3nm process. The motherboard delivers power through a 10+1+2+1 stage design using 80A power stages, ProCool connectors, MicroFine alloy chokes and premium metallic capacitors. A massive heatsink with integrated I/O cover, high-conductivity thermal pads and an L-shaped heatpipe moves heat away from the VRM and M.2 slot during extended workloads. Realtek ALC1220P provides 7.1 surround sound with an internal headphone amplifier.

Highlights

  • Ready for Intel Core Ultra Series 2 on LGA 1851 socket
  • 10+1+2+1 power stages rated at 80A each for stable delivery
  • DDR5 up to 9066 MT/s with AEMP III and DIMM Fit
  • PCIe 5.0 x16 slot plus M.2_1 at PCIe 5.0 x4 and M.2_2 at PCIe 4.0 x4
  • 5G LAN, WiFi7 and Bluetooth 5.4 with Thunderbolt 4 on rear I/O

Specifications

BrandASUS
ModelROG STRIX B860-I GAMING WIFI+Ultra 5 245K
Part NumberROG STRIX B860-I GAMING WIFI+Ultra 5 245K
CPU Socket TypeLGA 1851
ChipsetIntel B860
Number of Memory Slots2x288pin (DDR5)
Memory StandardUp to 9066+MT/s (OC)
Maximum Memory Supported96GB
Channel SupportedDual Channel
Memory FeatureDual channel memory architecture
DIMM Fit
Supports Intel Extreme Memory Profile (XMP) memory module
ASUS Enhanced Memory Profile III (AEMPIII)
PCI Express 5.0 x16Intel Core Ultra Processors (Series 2)
1 x PCIe 5.0 x16 slot
Serial ATA (SATA)4 x SATA 6Gb/s
M.2Intel Core Ultra Processors (Series 2)
M.2_1 slot (Key M), type 2260/2280 (supports PCIe 5.0 x4 mode)
Intel B860 Chipset**
M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode)
SATA RAIDIntel Rapid Storage Technology supports SATA RAID 0/1/5/10.
Audio ChipsetRealtek ALC1220P
Audio ChannelsRealtek ALC1220P 7.1 Surround Sound High Definition Audio CODEC*
- Impedance sense for front and rear headphone outputs
- Internal audio Amplifier to enhance the highest quality sound for headphone and speakers
- Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking
- High quality 120 dB SNR stereo playback output and 113 dB SNR recording input (Line-in)
- Supports up to 32-Bit/192 kHz playback*
Audio Features
- SupremeFX Shielding Technology
- Savitech SV3H712 AMP
- Rear optical S/PDIF out port
- Premium audio capacitors
- Dedicated audio PCB layers
* Due to limitati
Max LAN Speed2.5Gbps
Wireless LANWi-Fi 802.11 be
BluetoothBluetooth 5.4
Back I/O Ports1 x Thunderbolt 4 port (1 x USB Type-C)
1 x USB 20Gbps port (1 x USB Type-C)
1 x USB 10Gbps ports (1 x Type-A)
3 x USB 5Gbps ports (3 x Type-A)
2 x USB 2.0 ports (2 x Type-A)
1 x DisplayPort
1 x HDMI port
1 x Wi-Fi module
1 x Intel 2.5Gb Ethernet port
2 x Audio jacks
1 x Optical S/PDIF out port
1 x Clear CMOS button
Onboard USB1 x USB 10Gbps connector (supports USB Type-C)
1 x USB 5Gbps header supports 2 additional USB 5Gbps ports
1 x USB 2.0 header supports 2 additional USB 2.0 ports
Other ConnectorsFan and Cooling Related
1 x 4-pin CPU Fan header
1 x 4-pin AIO Pump header
1 x 4-pin Chassis Fan headers
Miscellaneous
2 x Addressable Gen2 headers
1 x Front Panel Audio header (F_AUDIO)
1 x 10-1 pin Front System Panel header
1 x Thermal Sensor header
BIOS Feature256 Mb Flash ROM, UEFI AMI BIOS
SoftwareROG Exclusive Software
- ROG CPU-Z
- Dolby Atmos
ASUS Exclusive Software
Armoury Crate
- Aura Creator
- Aura Sync
- Fan Xpert 4
- GameFirst
- Power Saving
AIDA64 Extreme (60 days free trial)
HWiNFO
ASUS AI Advisor
ASUS DriverHub
ASUS GlideX
TurboV Core
Adobe Creative Cloud (Free Trial)
Norton 360 for Gamers (60 Days Free Trial)
WinRAR (40 Days Free Trial)
UEFI BIOS
ASUS EZ DIY
- ASUS CrashFree BIOS 3
- ASUS EZ Flash
- ASUS UEFI BIOS EZ Mode
- ASUS MyHotkey
NPU Boost
Windows 11Windows 11 (22H2 & later)
Form FactorMini ITX
Dimensions (W x L)6.7" x 6.7"
Power Pin1 x 24-pin Main Power connector
1 x 8-pin +12V CPU Power connector
FeaturesExtreme Engine Digi+
- 5K Black metallic capacitors
ASUS Q-Design
- PCIe Slot Q-Release Slim (with PCIe SafeSlot)
- M.2 Q-Latch
- Q-Antenna
- Q-Dashboard
- Q-DIMM
- Q-LED (CPU [red], DRAM [yellow], VGA [white], Boot Device [yellow green])
- Q-Slot
ASUS Thermal Solution
- M.2 heatsink backplate
- M.2 heatsink
- VRM heatsink design
ASUS EZ DIY
- Clear CMOS button
- CPU Socket lever protector
- ProCool
- Pre-mounted I/O shield
- SafeSlot
- SafeDIMM
Aura Sync
- Addressable Gen2 headers
Package Contents1 x Intel Ultra 5 245K CPU
1 x Thermal grease: Shin-Etsu X-23-7868-2D
Cables
2 x SATA 6Gb/s cables
Miscellaneous
1 x ASUS WiFi Q-Antenna
1 x Cable ties package
2 x Screw packages for M.2 SSD
1 x Fan Bracket
1 x ROG key chain
1 x ROG Strix stickers
Documentation
1 x Quick start guide

Other versions of this model

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Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

What power limit appears first during sustained workloads on the Ultra 5 245K?

The Intel Ultra 5 245K has a 125 W base power rating that will be reached before any motherboard limit under continuous load

How loud and hot does the VRM area get when the board runs all day?

The 10+1+2+1 80 A power stages with massive heatsinks, high-conductivity pads and an L-shaped heatpipe keep VRM temperatures low and fan noise minimal during extended operation

Which memory kit must I already own for this combo to post?

You need a DDR5 kit up to 9066 MT/s (OC) in 288-pin DIMM form factor; maximum capacity is 96 GB across the two slots

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