ASRock
ASRock B650M Pro RS Micro ATX AMD motherboard
Micro-ATX AM5 board with DDR5 support to 7200 MHz, PCIe Gen5 M.2, 2.5 GbE LAN and 7.1 audio for Ryzen 7000 and 9000 series CPUs
- CPU Socket TypeAM5
- CPU TypeSupports AMD Socket AM5 Ryzen 7000 Series Processors
- ChipsetAMD B650
- Number of Memory Slots4x288pin (DDR5)
- Memory StandardDDR5 6000+ (OC)
- Maximum Memory Supported128GB
- Supports AMD Ryzen 7000 and 9000 Series CPUs on AM5 socket
- 8+2+1 Dr.MOS power phases deliver stable current to the processor
- Four DDR5 slots accept up to 128 GB at 7200 MHz OC
- PCIe Gen5 M.2 slot provides 128 Gb/s bandwidth for fast storage
- 5 Gbps LAN plus 7.1-channel audio with Nahimic enhancement
AM5 Micro ATX Platform
The ASRock B650M Pro RS is a Micro ATX motherboard built around the AMD B650 chipset for Socket AM5 processors. It supports Ryzen 7000 and Ryzen 9000 series CPUs, though a BIOS update may be required for the newer series. The board delivers an 8+2+1 Dr.MOS power phase design and includes HDMI plus DisplayPort outputs for integrated graphics.
Suited for Compact DDR5 Builds
This board fits builders who want four DDR5 slots, a PCIe 5.0 M.2 slot and 2.5 Gbps LAN in a smaller chassis. It is less suitable for users needing multiple full-size PCIe 4.0 x16 slots or extensive rear I/O connectivity. The single PCIe 4.0 x16 slot and single PCIe 3.0 x4 slot limit multi-GPU or add-in card expansion.
PCIe 5.0 M.2 Decides Fit
The standout specification is the Blazing M.2 socket (M2_1) running at PCIe Gen5 x4 (128 Gb/s) for 2260/2280 NVMe drives. A second Hyper M.2 runs at Gen4 x4 (64 Gb/s) and a third at Gen4 x2 (32 Gb/s). If your primary storage drive needs Gen5 speed, this board provides it; otherwise a B650 board with only Gen4 M.2 may suffice.
Highlights
- Supports AMD Ryzen 7000 and 9000 Series CPUs on AM5 socket
- 8+2+1 Dr.MOS power phases deliver stable current to the processor
- Four DDR5 slots accept up to 128 GB at 7200 MHz OC
- PCIe Gen5 M.2 slot provides 128 Gb/s bandwidth for fast storage
- 5 Gbps LAN plus 7.1-channel audio with Nahimic enhancement
Specifications
| Brand | ASRock |
|---|---|
| Model | B650M PRO RS |
| CPU Socket Type | AM5 |
| CPU Type | Supports AMD Socket AM5 Ryzen 7000 Series Processors |
| Chipset | AMD B650 |
| Number of Memory Slots | 4x288pin (DDR5) |
| Memory Standard | DDR5 6000+ (OC) |
| Maximum Memory Supported | 128GB |
| Channel Supported | Dual Channel |
| Memory Performance Profile | Intel XMP 3.0 / AMD EXPO |
| ECC Supported | Non-ECC |
| Buffer Supported | Un-buffered |
| PCI Express 4.0 x16 | 1 x PCIe 4.0 x16 Slot (PCIE1), supports x16 mode* |
| PCI Express 3.0 x16 | 1 x PCIe 3.0 x16 Slot (PCIE2), supports x4 mode* |
| Other Slots | * Supports NVMe SSD as boot disks |
| Serial ATA (SATA) | 4 x SATA 6Gb/s |
| M.2 | 1 x Blazing M.2 Socket (M2_1, Key M), supports type 2260/2280 PCIe Gen5x4 (128 Gb/s) mode* 1 x Hyper M.2 Socket (M2_2, Key M), supports type 2260/2280 PCIe Gen4x4 (64 Gb/s) mode* 1 x M.2 Socket (M2_3, Key M), supports type 2260/2280 PCIe Gen4x2 (32 Gb/s) mode* |
| SATA RAID | 0/1/10 |
| Audio Channels | 7.1 Channels |
| LAN Chipset | Dragon RTL8125BG |
| Max LAN Speed | 2.5Gbps |
| Back I/O Ports | 2 x Antenna Mounting Points 1 x HDMI Port 1 x DisplayPort 1.4 1 x USB 3.2 Gen2 Type-A Port (10 Gb/s) 1 x USB 3.2 Gen2 Type-C Port (10 Gb/s) 2 x USB 3.2 Gen1 Ports 4 x USB 2.0 Ports 1 x RJ-45 LAN Port 1 x BIOS Flashback Button HD Audio Jacks: Line in / Front Speaker / Microphone |
| Onboard USB | 2 x USB 2.0 Headers (Support 4 USB 2.0 ports) 2 x USB 3.2 Gen1 Headers (Support 4 USB 3.2 Gen1 ports) 1 x Front Panel Type C USB 3.2 Gen1 Header |
| Other Connectors | 1 x SPI TPM Header 1 x Power LED and Speaker Header 1 x RGB LED Header* 3 x Addressable LED Headers** 1 x CPU Fan Connector (4-pin)*** 1 x CPU/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control)**** 3 x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan Speed Control)***** 1 x Front Panel Audio Connector 1 x Thunderbolt AIC Connector (5-pin) (Supports ASRock Thunderbolt 4 AIC Card) *Supports in total up to 12V/3A, 36W LED Strip **Support in total up to 5V/3A, 15W LED Strip ***CPU_FAN1 supports the fan power up to 1A (12W). ****CPU_FAN2/WP supports the fan power up to 2A (24W |
| Form Factor | Micro ATX |
| Dimensions (W x L) | 9.6" x 9.6" |
| Power Pin | 1 x 24 pin ATX Power Connector 1 x 8 pin 12V Power Connector (Hi-Density Power Connector) |
| Features | Superb Productivity - PCIe Gen5 (M.2) - Dual Channel DDR5 Rock-Solid Durability - 8+2+1 Power Phase, 50A Dr.MOS - Pre-Installed I/O Shield Ultrafast Connectivity - 2.5G LAN EZ Update - BIOS Flashback Button - ASRock Auto Driver Installer EZ Troubleshooter - ASRock Post Status Checker |
| Shipping weight | 1.81 kg |
| Package size | 275 × 260 × 60 mm |
Questions about this item
How does the PCIe Gen5 x4 M.2 slot perform inside a working PC?
The Blazing M.2 socket delivers up to 128 Gb/s bandwidth for a single NVMe drive, so large game loads and heavy file transfers run at the drive's rated speed rather than being limited by the motherboard.
What does the 2.5 Gbps LAN port actually cap at in daily use?
The Dragon RTL8125BG controller tops out at 2.5 Gbps, so wired transfers will not exceed that ceiling even if your router or switch supports faster rates.
What physical space does the board need to mount in a chassis?
It follows the Micro ATX form factor with four mounting holes and a standard I/O shield cut-out, fitting any case designed for that size.
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