The ASUS PRIME Pro WS B850M-ACE SE is a compact, micro ATX motherboard for AMD's AM5 socket Ryzen processors. While it lacks some of the expansion capacity that a larger motherboard offers, it still supports up to 256GB of DDR5 memory and multiple SATA and M.2 drives. Two PCI-Express slots are also present, with one supporting full 5.0 x16 speed for a video card and the other at 4.0 x4 for small expansion cards.
For external connectivity, this board has basic analog audio outputs, 10Gb & 2.5Gb Ethernet, and six USB ports of varying size and speed. There are also HDMI and DisplayPort outputs for use with the graphics built into AMD's Ryzen processors, though most users will want to add a dedicated video card for improved performance. One of the more unique features this board offers is onboard remote management (IPMI) with a dedicated Ethernet port and accompanying VGA output.
For external connectivity, this board has basic analog audio outputs, 10Gb & 2.5Gb Ethernet, and six USB ports of varying size and speed. There are also HDMI and DisplayPort outputs for use with the graphics built into AMD's Ryzen processors, though most users will want to add a dedicated video card for improved performance. One of the more unique features this board offers is onboard remote management (IPMI) with a dedicated Ethernet port and accompanying VGA output.
Model: Asus Pro WS B850M-ACE SE
Specifications
| Socket | AM5 |
| CPU Compatibility | Ryzen 7000 and 9000 series CPUs |
| Form Factor | MicroATX |
| Chipset Manufacturer | AMD |
| Chipset | B850 |
| Wired Network Connectivity | 10GbE RJ45 + 2.5GbE RJ45 |
| Network Controller | Realtek RTL8127, Intel I226 |
| Audio Controller | Realtek ALC897 |
| Cooling System | Passive Heatsink |
| Windows Support | Windows 10/11, Windows Server |
| Linux Support | No |
Memory Support | |
| Type | DDR5 |
| Maximum Speed | 5600 MHz |
| Number of Slots | 4 |
| Maximum Size per Slot | 64 GB |
| Maximum Amount Supported | 256 GB |
Onboard Video | |
| Chipset Manufacturer | ASpeed |
| Processor Type | AST2600/AMD |
| Maximum HDMI Resolution | 3840x2160 |
| Maximum DisplayPort Resolution | 7680x4320 |
| VGA | 1 |
| HDMI | 1 |
| HDMI Version | 2.1 |
| DisplayPort | 1 |
| DisplayPort Version | 1.4 |
| Notes: | VGA for ASPEED graphics output only |
External Connections | |
| USB 2.0 | 2 |
| USB 3.2 Gen 2 (USB 3.1) | 3 |
| USB 3.2 Gen 2 Type C | 2 |
| Audio Out | Surround Sound (7.1) |
| LAN (RJ45) | 2 |
| Mgmt LAN (RJ45) | 1 |
| Wireless Antenna Port | No |
| Thunderbolt Ports | None |
| BIOS Flashback | Yes |
Internal Connections | |
| USB 2.0 | 2 (providing 4 ports) |
| USB 3.2 Gen 1 (USB 3.0) | 1 |
| USB 3.2 Gen 2x2 Type C | 1 |
| SATA III 6.0Gbps | 4 |
| M.2 Connector | 2 |
| M.2 Support | 2x 80mm PCIe 5.0 |
| Maximum M.2 Length | 80 mm (3.1 in) |
| U.2 Connector | 1 |
| Serial (Com) | 1 |
| TPM (module sold separately) | 1 |
| Compatible TPM | Asus TPM-SPI |
Expansion Slots | |
| Slot 1 | Slot not available on this board |
| Slot 2 | PCI Express 5.0 x16 |
| Slot 3 | Slot not available on this board |
| Slot 4 | PCI Express 4.0 x4 in a x16 size |
Additional Information | |
| Bluetooth | No |
| Integrated IO Shield | No |
| Remote Management | Onboard |
BIOS Features | |
| UEFI BIOS | Yes |
| EZ Flash | Yes |
| OC Profiles | No |
Dimensions | |
| Height | 244 mm (9.6 in) |
| Width | 244 mm (9.6 in) |
| Net Weight | 1.375 kg (3.0 lbs) |