
ASUS Prime B860M-K DDR5 Micro-ATX Motherboard
🧩 Overview
The Prime B860M-K is a Micro-ATX motherboard built on the Intel B860 chipset, supporting Intel Core Ultra (Series 2) processors via the LGA 1851 socket. It’s optimized for DDR5 memory, PCIe Gen 5 storage, and 2.5Gb Ethernet, making it ideal for mainstream builders, AI-enhanced PCs, and compact gaming rigs
⚙️ Key Features
-
CPU Support
-
Intel® Core™ Ultra (Series 2) processors
-
Socket: LGA 1851 (Socket V1)
-
6+1+1+1 phase digital power design for stable delivery
-
-
Memory
-
2× DDR5 DIMM slots, dual-channel
-
Supports up to 128GB, speeds up to DDR5-8800+ MT/s (OC)
-
ASUS Enhanced Memory Profile III (AEMP III) for advanced tuning
-
-
Expansion Slots
-
1× PCIe 4.0 x16 (SafeSlot Core+)
-
2× PCIe 4.0 x1 slots for add-on cards
-
-
Storage
-
2× M.2 slots:
-
M.2_1: PCIe 5.0 x4 (2242/2260/2280)
-
M.2_2: PCIe 4.0 x4 (2242/2260/2280)
-
-
4× SATA III ports
-
RAID support: 0, 1, 5, 10
-
-
Networking
-
2.5 Gigabit Ethernet (Realtek)
-
LANGuard protection for stable wired connections
-
-
USB & I/O
-
Rear I/O includes USB 3.2 Gen 1 and Gen 2 ports
-
Internal headers for front panel USB 3.2 and USB 2.0
-
HDMI and DisplayPort outputs for integrated graphics
-
-
AI & Software Features
-
ASUS AI Advisor for system optimization
-
DIGI+ VRM, Fan Xpert 2+, and Power Saving profiles
-
UEFI BIOS with DIMM Fit and Q-Fan control
-
-
Form Factor & Build
-
Micro-ATX (mATX)
-
Dimensions: ~24.4 × 24.4 cm
-
ASUS 5X Protection III for enhanced durability
-
📐 Specifications Summary
| Attribute | Details |
|---|---|
| Chipset | Intel B860 |
| Socket | LGA 1851 |
| Memory Support | DDR5, up to 128GB, 8800+ MT/s (OC) |
| Expansion Slots | 1× PCIe 4.0 x16, 2× PCIe 4.0 x1 |
| Storage | 2× M.2 (PCIe 5.0 & 4.0), 4× SATA III |
| Networking | 2.5Gb Ethernet |
| USB Ports | USB 3.2 Gen 1/2, USB 2.0 |
| Display Outputs | HDMI, DisplayPort |
| Form Factor | Micro-ATX |
| Model Number | PRIME B860M-K |
💡 Why It’s a Smart Choice
-
✅ Supports next-gen Intel CPUs with AI-ready features
-
✅ PCIe 5.0 M.2 slot for ultra-fast SSDs
-
✅ DDR5 memory tuning with AEMP III
-
✅ Compact mATX layout for versatile builds
-
✅ ASUS reliability with enhanced power and cooling
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ASUS Prime B860M-K DDR5 Micro-ATX Motherboard
🧩 Overview
The Prime B860M-K is a Micro-ATX motherboard built on the Intel B860 chipset, supporting Intel Core Ultra (Series 2) processors via the LGA 1851 socket. It’s optimized for DDR5 memory, PCIe Gen 5 storage, and 2.5Gb Ethernet, making it ideal for mainstream builders, AI-enhanced PCs, and compact gaming rigs
⚙️ Key Features
-
CPU Support
-
Intel® Core™ Ultra (Series 2) processors
-
Socket: LGA 1851 (Socket V1)
-
6+1+1+1 phase digital power design for stable delivery
-
-
Memory
-
2× DDR5 DIMM slots, dual-channel
-
Supports up to 128GB, speeds up to DDR5-8800+ MT/s (OC)
-
ASUS Enhanced Memory Profile III (AEMP III) for advanced tuning
-
-
Expansion Slots
-
1× PCIe 4.0 x16 (SafeSlot Core+)
-
2× PCIe 4.0 x1 slots for add-on cards
-
-
Storage
-
2× M.2 slots:
-
M.2_1: PCIe 5.0 x4 (2242/2260/2280)
-
M.2_2: PCIe 4.0 x4 (2242/2260/2280)
-
-
4× SATA III ports
-
RAID support: 0, 1, 5, 10
-
-
Networking
-
2.5 Gigabit Ethernet (Realtek)
-
LANGuard protection for stable wired connections
-
-
USB & I/O
-
Rear I/O includes USB 3.2 Gen 1 and Gen 2 ports
-
Internal headers for front panel USB 3.2 and USB 2.0
-
HDMI and DisplayPort outputs for integrated graphics
-
-
AI & Software Features
-
ASUS AI Advisor for system optimization
-
DIGI+ VRM, Fan Xpert 2+, and Power Saving profiles
-
UEFI BIOS with DIMM Fit and Q-Fan control
-
-
Form Factor & Build
-
Micro-ATX (mATX)
-
Dimensions: ~24.4 × 24.4 cm
-
ASUS 5X Protection III for enhanced durability
-
📐 Specifications Summary
| Attribute | Details |
|---|---|
| Chipset | Intel B860 |
| Socket | LGA 1851 |
| Memory Support | DDR5, up to 128GB, 8800+ MT/s (OC) |
| Expansion Slots | 1× PCIe 4.0 x16, 2× PCIe 4.0 x1 |
| Storage | 2× M.2 (PCIe 5.0 & 4.0), 4× SATA III |
| Networking | 2.5Gb Ethernet |
| USB Ports | USB 3.2 Gen 1/2, USB 2.0 |
| Display Outputs | HDMI, DisplayPort |
| Form Factor | Micro-ATX |
| Model Number | PRIME B860M-K |
💡 Why It’s a Smart Choice
-
✅ Supports next-gen Intel CPUs with AI-ready features
-
✅ PCIe 5.0 M.2 slot for ultra-fast SSDs
-
✅ DDR5 memory tuning with AEMP III
-
✅ Compact mATX layout for versatile builds
-
✅ ASUS reliability with enhanced power and cooling
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
🧩 Overview
The Prime B860M-K is a Micro-ATX motherboard built on the Intel B860 chipset, supporting Intel Core Ultra (Series 2) processors via the LGA 1851 socket. It’s optimized for DDR5 memory, PCIe Gen 5 storage, and 2.5Gb Ethernet, making it ideal for mainstream builders, AI-enhanced PCs, and compact gaming rigs
⚙️ Key Features
-
CPU Support
-
Intel® Core™ Ultra (Series 2) processors
-
Socket: LGA 1851 (Socket V1)
-
6+1+1+1 phase digital power design for stable delivery
-
-
Memory
-
2× DDR5 DIMM slots, dual-channel
-
Supports up to 128GB, speeds up to DDR5-8800+ MT/s (OC)
-
ASUS Enhanced Memory Profile III (AEMP III) for advanced tuning
-
-
Expansion Slots
-
1× PCIe 4.0 x16 (SafeSlot Core+)
-
2× PCIe 4.0 x1 slots for add-on cards
-
-
Storage
-
2× M.2 slots:
-
M.2_1: PCIe 5.0 x4 (2242/2260/2280)
-
M.2_2: PCIe 4.0 x4 (2242/2260/2280)
-
-
4× SATA III ports
-
RAID support: 0, 1, 5, 10
-
-
Networking
-
2.5 Gigabit Ethernet (Realtek)
-
LANGuard protection for stable wired connections
-
-
USB & I/O
-
Rear I/O includes USB 3.2 Gen 1 and Gen 2 ports
-
Internal headers for front panel USB 3.2 and USB 2.0
-
HDMI and DisplayPort outputs for integrated graphics
-
-
AI & Software Features
-
ASUS AI Advisor for system optimization
-
DIGI+ VRM, Fan Xpert 2+, and Power Saving profiles
-
UEFI BIOS with DIMM Fit and Q-Fan control
-
-
Form Factor & Build
-
Micro-ATX (mATX)
-
Dimensions: ~24.4 × 24.4 cm
-
ASUS 5X Protection III for enhanced durability
-
📐 Specifications Summary
| Attribute | Details |
|---|---|
| Chipset | Intel B860 |
| Socket | LGA 1851 |
| Memory Support | DDR5, up to 128GB, 8800+ MT/s (OC) |
| Expansion Slots | 1× PCIe 4.0 x16, 2× PCIe 4.0 x1 |
| Storage | 2× M.2 (PCIe 5.0 & 4.0), 4× SATA III |
| Networking | 2.5Gb Ethernet |
| USB Ports | USB 3.2 Gen 1/2, USB 2.0 |
| Display Outputs | HDMI, DisplayPort |
| Form Factor | Micro-ATX |
| Model Number | PRIME B860M-K |
💡 Why It’s a Smart Choice
-
✅ Supports next-gen Intel CPUs with AI-ready features
-
✅ PCIe 5.0 M.2 slot for ultra-fast SSDs
-
✅ DDR5 memory tuning with AEMP III
-
✅ Compact mATX layout for versatile builds
-
✅ ASUS reliability with enhanced power and cooling























