





Motherboard ASRock B850M Pro RS AM5
- CPU socket
- AM5
- Chipset (MB)
- AMD B850 MB
- Form factor
- Micro ATX
- Supported memory
- DDR5
- Number of memory slots
- 4
Description
ASRock B850M Pro RS is a micro ATX motherboard for socket AM5, aimed at a stable mid-range build with an option for serious upgrades. You step on the AMD B850 chipset and support for Ryzen 9000, 8000, and 7000 series, which means a long platform life. You have DDR5 support with up to 256 GB RAM and frequencies up to 8000 MHz (OC), plus PCIe 5.0 for the graphics card and Gen5 M.2 for SSD. The goal here is a practical configuration for gaming and work, without sacrificing modern I/O and upgrade paths.
What you get
The AM5 socket and AMD B850 chipset open the door to new Ryzen generations – from 7000 to 9000 series, so you are not locked into one generation of CPU. The four slots for DDR5 in dual-channel mode and a maximum of 256 GB allow you to start modestly and gradually increase capacity and frequency up to 8000 MHz (OC), if you are aiming for lower latency and more fps depending on the CPU. The PCIe 5.0 x16 slot is ready for current and future high-end GPUs, while Blazing M.2 Gen5x4 provides space for super-fast NVMe SSD for OS and games. Additionally, you have 2.5G LAN for higher network bandwidth and 7.1 CH HD Audio for decent sound without a separate card.
- AM5 socket with support for Ryzen 9000, 8000, and 7000 series ensures compatibility with current and future AMD processors.
- Four slots for DDR5 memory, up to 256 GB and up to 8000 MHz (OC) are a good base for heavy multitasking, gaming, and productivity.
- Support for dual-channel memory improves actual bandwidth compared to single-channel configurations.
- PCIe 5.0 x16 slot with 15μ Gold Contact in the VGA slot ensures reliable contact and readiness for powerful GPUs, without limiting them from the motherboard.
- 1 x Blazing M.2 PCIe Gen5x4 (2280) allows for extremely fast NVMe SSD, suitable for OS, games, and heavy projects.
- 4 x SATA 6Gb/s with RAID 0, 1, 10 allow you to combine several drives for speed or redundancy in storage builds.
- Realtek Dragon RTL8125BG 2.5G LAN offers higher network speed than standard 1G LAN – useful for online gaming and fast local transfers.
- 7.1 CH HD Audio (Realtek ALC897) provides multi-channel sound for movies, games, and music without the need for a separate audio card.
- Built-in M.2 Key E slot allows you to add a Wi-Fi/BT module if you later decide to switch to a wireless connection.
- Micro ATX form factor and standard 24-pin ATX + 8-pin 12V connectors make it easy to integrate into compact cases.
Who it is suitable for
This motherboard is suitable if you are aiming for a reasonable gaming or productivity build on AM5 with an option for future upgrades – 1440p gaming, streaming, working with heavier applications. It is also a good choice for a compact yet serious configuration with a fast Gen5 SSD and modern graphics card. If you need built-in Wi-Fi and Bluetooth out of the box, or more M.2 slots, you might want to look for a higher-class model.
The most sensible aspect here is the combination of AM5 + B850, DDR5 up to 8000 MHz, and PCIe Gen5 for GPU and M.2 – you get a modern platform with a real upgrade path, without paying for unnecessary extras.
Full specifications
- Manufacturer
-
Asrock
- CPU socket
-
AM5
- Chipset (MB)
- AMD B850
- Form factor
- Micro ATX
- Supported processors
-
AMD Socket AM5 Ryzen™ 9000, 8000 and 7000 Series Processors
- Supported memory
-
DDR5
- Number of memory slots
- 4
- Maximum RAM capacity
- 256 GB
- Memory frequency (MHz)
-
8000(OC) MHz
- Support for dual-channel memory
- Yes
- Built-in audio
-
7.1 CH HD Audio (Realtek ALC897 Audio Codec)
- Built-in Wi-Fi
-
No
- Bluetooth version
- No
- Built-in LAN
-
1 x Realtek® Dragon RTL8125BG 2.5G LAN
- SATA interface
- 4 x SATA 6Gb/s
- RAID support
- 0,1,10
- M2 slot
-
1 x Blazing M.2 Socket (M2_1, Key M), supports type 2280 PCIe Gen5x4 (128 Gb/s)
- Expansion slots
-
CPU:- 1 x PCIe 5.0 x16 Slot (PCIE1), supports x16 mode- 1 x PCIe 4.0 x4 Slot (PCIE2), supports x4 modeChipset:- 1 x M.2 Socket (Key E), supports type 2230 WiFi/BT PCIe WiFi module- 15μ Gold Contact in VGA PCIe Slot (PCIE1)
- Power connector
-
1 x 24 pin ATX Power Connector (Hi-Density Power Connector)1 x 8 pin 12V Power Connector (Hi-Density Power Connector)1 x 4 pin 12V Power Connector (Hi-Density Power Connector)
- Dimensions
- Micro ATX - 24.4 x 24.4 cm
- Processor generation
-
7th generation8th generation9th generation
- Warranty
- 36 months
- OS
-
Support for Windows 10 and 11 64-bit
- USB ports
-
CPU:- 1 x USB 3.2 Gen2 Type-C (Rear)- 1 x USB 3.2 Gen2 Type-A (Rear)Chipset:- 1 x USB 3.2 Gen1 Type-C (Front)- 6 x USB 3.2 Gen1 Type-A (2 Rear, 4 Front)- 8 x USB 2.0 (4 Rear, 4 Front)
- Rear I/O panel
-
- 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- 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
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