Key points

• Format: ATX

• Socket / Chipset: AM5 — AMD B850

• Supported CPUs: Ryzen 7000 / 8000 / 9000 (depending on BIOS version)

• Memory: 4× DDR5, dual-channel, up to 192/128 GB depending on modules, EXPO/XMP profiles

Graphics (with Ryzen "G" APU)

• Rear video outputs: HDMI 2.1 + DisplayPort 1.4

• Multi-screen possible via the iGPU of compatible APUs

Expansion Slots

• PCIe x16 (from CPU) : PCIe 4.0 x16 for the GPU

• Other slots : PCIe 4.0/x1 and/or x4 from the chipset (for expansion cards)

• Note: on non-"E" B850, the x16 GPU remains Gen4

Storage

• M.2: 2 NVMe slots

  • M2_1 (CPU) : PCIe 5.0 x4 (“Blazing” NVMe)

  • M2_2 (chipset) : PCIe 4.0 x4

• SATA: 4× SATA 6 Gb/s

• NVMe boot supported; heatsink on the main M.2 slot

Network & Audio

• Wired LAN: 2.5 GbE

• Wi-Fi: absent on the Pro RS (consider a dongle/card if needed) — a Pro RS WiFi variant may exist

• Audio: HD 7.1 codec, isolated audio track, dedicated capacitors

Rear Connectivity (Typical I/O)

• Rear USB: mix of USB 3.2 Gen2 (10 Gb/s) and Gen1, plus USB 2.0

• Rear USB-C: present on some revisions (up to 10 Gb/s)

• Video: 1× HDMI, 1× DP

• Network: 1× RJ-45 (2.5G)

• Audio: 3 analog jacks

Internal Headers & Cooling

• Internal USB:

  • 1× USB-C 3.2 Gen1 header (front) (depending on revision)

  • 1× USB-A 3.2 Gen1 header (2 front ports)

  • 2× USB 2.0 headers (4 front ports)

• Fans: 1× CPU_FAN + 2–3× CHA_FAN (PWM/DC), customizable curves

• RGB: 1× ARGB 5 V + 1× RGB 12 V (Polychrome RGB)

• Power: 24-pin ATX + 8-pin CPU

VRM & Design

• Robust digital power phases (Dr.MOS), VRM/M.2 heatsinks

• Multi-layer PCB with ESD/overvoltage protection, reinforced x16 slot

BIOS & Features

• UEFI (EZ/Advanced modes), BIOS Flashback/Instant Flash, EXPO profiles, hardware monitoring

• Tools: A-Tuning (fans/monitoring), Polychrome Sync

Recommended use

• Entry/mid-range AM5 gaming PC with dedicated GPU

• Versatile setup wanting Gen5 NVMe SSD for the OS, second Gen4 M.2, 2.5G LAN, and 4 DIMM DDR5

Limitations to know

• No advanced CPU overclocking (mid-range chipset)

• PCIe 4.0 for the x16 GPU slot (the PCIe 5.0 x16 is reserved for "E" platforms)