Comprehensive controls form the foundation of the ASUS Prime series. The Prime B550 motherboard offers flexible tools for fine-tuning every aspect of your system, allowing you to perfectly adjust performance settings to match your workflow and maximize your productivity.
| Processor family | Ryzen 3rd generation | 
| Memory type | DDR4-RAM | 
| Number of memory modules (RAM) | 4 x | 
| Internal connection options | M.2 PCI/SATA Combo (2x), S-ATA III (6x) | 
| Item number | 13348833 | 
| Manufacturer | ASUS | 
| Category | Motherboards | 
| Manufacturer no. | 90MB14U0-M0EAY0 | 
| Release date | 17/6/2020 | 
| Form factor | ATX | 
| Socket | AM4 | 
| Chipset | AMD B550 | 
| Operating system compatibility | Windows 10 | 
| BIOS type | UEFI AMI | 
| Processor family | Ryzen 3rd generation | 
| Memory form factor | DIMM | 
| Number of pins | 288 x | 
| Number of memory modules (RAM) | 4 x | 
| Max. memory (RAM) | 128 GB | 
| Memory chip | DDR4-2133, DDR4-2400, DDR4-2666, DDR4-2800, DDR4-3000, DDR4-3200 | 
| Max. RAM OC | 4600 MHz | 
| Supported memory speed | 2133 MHz, 2400 MHz, 2666 MHz, 2800 MHz, 3000 MHz, 3200 MHz | 
| Memory type | DDR4-RAM | 
| RAM buffer | Unbuffered | 
| Video connections | DisplayPort (1x), HDMI (1x) | 
| Video connection version | HDMI 2.1 | 
| Multi-GPU technology | AMD 2-Way CrossFireX | 
| Network connections | RJ45 (1x) | 
| Ethernet controller brand | Realtek | 
| Ethernet controller | Realtek RTL8111H | 
| Max. port speed | 1 Gbit/s | 
| Chip | Realtek ALC887 | 
| Audio channel | 7.1 Channel | 
| Audio Connections | Optical TOSLINK (1x) | 
| RAID configuration | 0, 1, 10 | 
| Internal connection options | M.2 PCI/SATA Combo (2x), S-ATA III (6x) | 
| Expansion slot | PCI Express x16 (3x) | 
| PCI express version (max.) | 4 | 
| Number of fan connector | 3 | 
| USB ports | USB-A | 
| Exact USB ports | USB-A 3.2 Gen 1 (4x), USB-A 3.2 Gen 2 (2x) | 
| Power connectors | 24-pin ATX | 
| Country of origin | China | 
| Manufacturer commitment | RE100, SBTi | 
| Manufacturer compensation | According to RE100, the manufacturer ASUS fully compensates for its energy consumption, leading to a reduction in emissions. | 
| CO₂-Emission | |
| Climate contribution | 
| Scope of delivery | 2 x Serial ATA cable | 
| Length | 305 mm | 
| Width | 305 mm | 
| Height | 67 mm | 
| Weight | 1000 g | 
| Length | 33 cm | 
| Width | 26.60 cm | 
| Height | 5.40 cm | 
| Weight | 1.34 kg | 
| Product Safety | 
How often does a product of this brand in the «Motherboards» category have a defect within the first 24 months?
Source: GalaxusHow many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: GalaxusHow often is a product of this brand in the «Motherboards» category returned?
Source: Galaxus