ASUS PRIME B550-PLUS AM4 ATX MB B550 DDR4 128GB 2xM.2 6xSATA Gig LAN
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ASUS PRIME B550-PLUS: AM4 ATX motherboard w/ AMD B550 chipset. Supports Ryzen 3000-5000, DDR4 to 128GB, PCIe 4.0 M.2, 6x SATA, Gig LAN, HDMI/DP. Robust VRM, no WiFi.
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The ASUS PRIME B550-PLUS is a reliable ATX motherboard featuring the AMD B550 chipset and Socket AM4, compatible with Ryzen 3000, 4000 G-Series, and 5000 series processors. It delivers PCIe 4.0 support for high-speed GPUs and one M.2 NVMe SSD, plus a second PCIe 3.0 M.2 slot, alongside 6x SATA ports for versatile storage options.
Equipped with 4x DDR4 DIMM slots supporting up to 128GB (OC to 4600+ MHz via OptiMem), Realtek Gigabit LAN, USB 3.2 Gen2 ports including Type-A, HDMI 2.1, and DisplayPort 1.2. Features robust VRM design, 5X Protection III for durability, and 2-Way CrossFireX support. Ideal for gaming and productivity builds without WiFi or extensive RGB.
- CPU: AMD Ryzen 3000-5000 Series (AM4)
- Memory: 4x DDR4 up to 128GB, ECC/Non-ECC
- Storage: 2x M.2 (1x PCIe 4.0), 6x SATA III
- Connectivity: Gig LAN, 4x USB 3.2 Gen1, 2x USB 3.2 Gen2
- Audio: 7.1-channel
- Expansion: PCIe 4.0 x16, 2-Way CrossFireX
| Processor manufacturer | AMD |
| Processor socket | Socket AM4 |
| Compatible processor series | AMD Ryzen 3000, 4000 G-Series, 5000 Series |
| Motherboard chipset | AMD B550 |
| Motherboard form factor | ATX |
| Supported memory types | DDR4-SDRAM |
| Number of memory slots | 4 |
| Maximum internal memory | 128 GB |
| Supported memory clock speeds | 2133-4600+(OC) MHz |
| Number of M.2 (M) slots | 2 (1x PCIe 4.0 x4, 1x PCIe 3.0 x4) |
| Number of SATA III connectors | 6 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 4 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity | 2 |
| Ethernet interface type | Gigabit Ethernet |
| LAN controller | Realtek RTL8111H |
| HDMI ports quantity | 1 (HDMI 2.1) |
| DisplayPorts quantity | 1 (DP 1.2) |
| Audio output channels | 7.1 channels |
| Product colour | Black/Silver |
| RAID levels | 0, 1, 10 |
| Parallel processing technology support | 2-Way CrossFireX |
| BIOS type | UEFI AMI |
| Weight | 1 kg |
| PCIe Version | PCIe 4.0 (primary x16) |
| Memory Profile Support | DOCP |
| Wireless Connectivity | None |