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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 socketLGA 1851
  • ChipsetIntel B860
  • Form factorMini ITX
  • Memory slot count2 × 288pin (DDR5)
  • Supported memoryUp to 9066+MT/s (OC)
  • Max supported RAM96 GB

Model ROG STRIX B860-I GAMING WIFI

Show 3 more

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.

How it compares

Measured against everything we stock in Motherboards for Intel CPUs, at today’s prices. Recalculated every night.

Price $560.99
Pricier than about 91% of the 2,965 comparable items (median $97.99).

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Specifications

Product
Brand nameASUS
Model nameROG STRIX B860-I GAMING WIFI+Ultra 5 245K
Part numberROG STRIX B860-I GAMING WIFI+Ultra 5 245K
Processor
CPU socketLGA 1851
ChipsetIntel B860
Memory
Memory slot count2 × 288pin (DDR5)
Supported memoryUp to 9066+MT/s (OC)
Max supported RAM96 GB
Memory channelsDual Channel
Storage
SATA ports4 x SATA 6Gb/s
M.2 slotsIntel 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 and RAID supportIntel Rapid Storage Technology supports SATA RAID 0/1/5/10.
Audio & video
Audio chipRealtek ALC1220P
Sound 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
Connectivity
Maximum network speed2.5 Gbit/s
Wi-Fi standardWi-Fi 802.11 be
Bluetooth support5.4
Ports & slots
PCIe 5.0 x16 slotsIntel Core Ultra Processors (Series 2)
1 x PCIe 5.0 x16 slot
Onboard USB headers1 x USB 10 Gbit/s connector (supports USB Type-C)
1 x USB 5 Gbit/s header supports 2 additional USB 5 Gbit/s ports
1 x USB 2.0 header supports 2 additional USB 2.0 ports
Power
Power connectors1 × 24-pin Main Power connector
1 × 8-pin +12 V CPU Power connector
Size & build
Form factorMini ITX
Width and length6.7 in × 6.7 in
Compatibility
Windows 11 support(22H2 & later)
More details
BIOS256 Mb Flash ROM, UEFI AMI BIOS

Other versions of this model

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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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