ASRock B450M/AC R2.0 AM4 AMD B450 Micro ATX Motherboard

Additional information

Part Type	Motherboard
Device Type	Desktop
Brand	ASRock
Model Number	B450M/AC R2.0
Device Compatibility	AMD AM4 Socket Ryzen 2000, 3000 and 5000 Series
Original/Aftermarket	Original
Condition	New
SKU	13-157-974

New: This item is brand-new, unused, unopened, and undamaged, in its original packaging.

NOTE: Please verify your device’s model number to ensure that this part is compatible.

Form Factor: Micro ATX
CPU Socket: AM4
Chipset: AMD B450 (Promontory)
Supported CPUs:
- AMD Ryzen 2000, 3000, and 5000 Series
- AMD Athlon Series (AM4)
Memory Support:
- 4× DDR4 DIMM slots
- Up to 128GB total
- Up to DDR4-3200+ (OC), varies by CPU generation
- Dual-channel architecture
- Supports ECC (PRO CPUs only) & non-ECC unbuffered memory
- Supports AMD Memory Profiles
Expansion Slots:
- 1× PCIe 3.0 x16 (Ryzen Matisse/Pinnacle/Summit Ridge CPUs)
- 1× PCIe 2.0 x16 (x4 mode)
- 1× M.2 (Key E) slot with included Wi-Fi module
Storage:
- 1× Ultra M.2 PCIe Gen3 x4 (or Gen3 x2 on Athlon)
- 4× SATA 6Gb/s
- Supports RAID 0/1/10
USB Ports:
- Rear:
- 4× USB 3.2 Gen1
- 2× USB 2.0
- Internal:
- 2× USB 3.2 Gen1 (via header)
- 4× USB 2.0 (via header)
Networking:
- Realtek Gigabit LAN (RTL8111H)
- Intel Dual-Band Wi-Fi 802.11ac (2.4GHz & 5GHz)
- Bluetooth 4.2 / 3.0
Audio:
- Realtek ALC892/897
- 7.1-Channel HD Audio
- Surge protection and content protection support
Video Outputs:
- HDMI 1.4 (up to 4K @ 30Hz) — requires compatible APU
Other Features:
- RGB & ARGB headers
- Smart Fan Speed Control (CPU, chassis, water pump)
- AMD Fan LED and USB headers
- UEFI BIOS with multilingual GUI
- Full Spike Protection (all USB, Audio, LAN)
- Software: A-Tuning, Polychrome Sync, XFast LAN
Operating System Support:
- Windows 11
- Windows 10 64-bit
Compatible Identifying Number:
- Model: B450M/AC R2.0

The ASRock B450M/AC R2.0 Micro ATX motherboard is used in desktop systems with AMD AM4 socket CPUs, such as Ryzen 2000, 3000, and 5000 series. It connects and manages the CPU, memory, storage, and other components. This model includes built-in Wi-Fi, M.2 SSD support, and SATA ports for fast and flexible performance in small form factor builds.