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Micro-ATX motherboard in dark finish with silver heatsinks, AM5 socket, four DDR5 slots, Wi-Fi antennas

ASRock

ASRock B650M PG Lightning WiFi AMD motherboard

SKU CH-3629-3GMP1

Micro-ATX Socket AM5 board with AMD B650 chipset supports Ryzen 7000 and 8000 CPUs, up to 192 GB DDR5, 2.5 Gigabit LAN, Wi-Fi 6E and Bluetooth 5.2

  • ProcessorRyzen 8000 Series
  • ChipsetAMD B550
  • Form factorATX
  • CPU socketAM5
  • Memory slot count4 × 288pin (DDR5)
  • Supported memoryDDR4 5333
  • Supports Ryzen 7000 and 8000 processors with AM5 socket
  • Up to 192 GB DDR5 memory across four DIMM slots
  • 5 Gigabit Ethernet plus Wi-Fi 6E and Bluetooth 5.2 built in
  • Four SATA 6.0 Gb/s ports and three M.2 slots for storage
  • Micro ATX form factor fits compact builds with full connectivity

Socket AM5 DDR5 motherboard for Ryzen 7000 and 8000

The ASRock B650M PG Lightning WiFi is a micro ATX board built around the AMD B650 chipset. It accepts Ryzen 7000 and 8000 series processors in the AM5 socket. Four DDR5 DIMM slots support up to 192 GB of unbuffered memory, with ECC modules operating in non-ECC mode.

Check CPU cooler clearance

Verify that your chosen AM5 cooler fits the micro ATX layout and does not block the first PCIe x16 slot. Confirm your power supply provides the required 8-pin EPS connector for the CPU and a 24-pin ATX connector for the board. Ensure the case has a USB 3.2 Gen 1 header for the front-panel Type-C port.

Micro ATX form factor with 2.5 GbE and Wi-Fi 6E

The board measures to the micro ATX standard and uses a 6-layer PCB with solid capacitors. Rear I/O includes HDMI, USB-C 3.2 Gen 2, USB 3.2 Gen 2, two USB 3.2 Gen 1, four USB 2.0, 2.5 Gigabit Ethernet, and Wi-Fi 6E with Bluetooth 5.2. Internal headers add another USB-C 3.2 Gen 1, four USB 3.2 Gen 1 and four USB 2.0 ports. Four SATA 6.0 Gb/s ports and three M.2 slots — one Hyper, one Blazing — handle storage.

How it compares

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

Price $111.99
Cheaper than about 72% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameASUS
Product linePrime
Model nameB650M PG LIGHTNING WIFI
Part number90-MXBMW0-A0UAYZ
Processor
ProcessorRyzen 8000 Series
CPU socketAM5
ChipsetAMD B550
Memory
Memory slot count4 × 288pin (DDR5)
Supported memoryDDR4 5333
Max supported RAM128 GB
Memory channels12-Channel
Storage
SATA ports14 x SATA 6Gb/s
Connectivity
Maximum network speed100 Mbit/s
Wi-Fi standardWi-Fi 802.11 be
Ports & slots
PCIe 4.0 x16 slots1 x PCI Express 4.0 x16
PCIe 3.0 x16 slots1 x PCI Express 3.0 x16
PCIe x16 slots1 x PCI Express x16
PCIe x4 slots3 x PCI Express x4
PCIe x1 slots2 x PCI Express x1
PCI slots1 x PCI Slot
Additional slots2 x Mini PCIe
Rear panel ports1 × 6.3 mm Headphone
PS/2 ports1
Serial ports3
Video connectors1
HDMI ports1 x HDMI
Ethernet port1 x RJ45
USB 3.1 ports2 x USB 3.1
USB 3.0 ports10 x USB 3.0
USB 2.0 ports9 x USB 2.0
Game/midi ports1
Audio jacks6 Ports
Onboard USB headers1 x USB 3.1 + 2 x USB 3.0 + 6 x USB 2.0
Power
Power connectors24 Pin
Size & build
Form factorATX
Width and length20'
In the box
In the box1 unit
More details
PCI express 2.0 x161 x PCI Express 2.0 x16
ESATA1 x eSATA 3Gb/s

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