ASUS TUF Gaming B550-PLUS WiFi II – AM4 ATX Motherboard, PCIe 4.0 (Ryzen 5000/3000), Wi-Fi 6, Bluetooth 5.2, 2.5Gb LAN, DDR4 up to 4866 (O.C.)

The ASUS TUF Gaming B550-PLUS WiFi II is a full-size ATX motherboard for AMD’s AM4 socket, built on the B550 chipset. The ASUS TUF Gaming B550-PLUS WiFi II takes Ryzen 5000, 5000G, 4000G and 3000 Series desktop processors and has four DDR4 slots for up to 128 GB, two M.2 slots, 2.5Gb Ethernet, and Wi-Fi 6 with Bluetooth 5.2. One point to understand before you buy: PCIe 4.0 on this board comes from the processor, not the chipset, and only with a Ryzen 5000 or 3000 Series CPU.

Which Processors the ASUS TUF Gaming B550-PLUS WiFi II Supports

ASUS lists support for AMD Ryzen 5000 Series, 5000 G-Series, 4000 G-Series and 3000 Series desktop processors on the AM4 socket. Check the ASUS CPU support list for your exact model and the minimum BIOS version it needs.

PCIe 4.0 is available only on the lanes that come from the processor: the top x16 slot and the first M.2 slot. With a Ryzen 5000 or 3000 Series CPU they run at PCIe 4.0; with a Ryzen 5000G or 4000G APU the same slots run at PCIe 3.0. Everything wired to the B550 chipset is PCIe 3.0 whatever processor you fit.

Expansion Slots, Lane by Lane

ASUS lists the slots on the ASUS TUF Gaming B550-PLUS WiFi II as follows. The top x16 slot, from the CPU: PCIe 4.0 x16 with Ryzen 5000/3000, or PCIe 3.0 x16 with Ryzen 5000G/4000G. The second full-length slot, from the B550 chipset: PCIe 3.0 wired at x4. Three PCIe 3.0 x1 slots, also from the chipset.

One detail matters when planning a build. ASUS notes that the second x16 slot runs in x1 mode when any of the PCIe 3.0 x1 slots is occupied, so if you want that slot at x4 for a capture card or a network card, leave the x1 slots empty.

M.2 and SATA Storage

M.2_1 is wired to the processor and supports PCIe 4.0 x4 and SATA drives with a Ryzen 5000/3000 CPU, or PCIe 3.0 x4 with a 5000G/4000G APU. M.2_2 comes from the chipset and runs PCIe 3.0 x4 or SATA. Both take 2242, 2260, 2280 and 22110 drives, and an M.2 heatsink helps keep a fast SSD at a steady temperature.

The ASUS TUF Gaming B550-PLUS WiFi II has six SATA 6Gb/s ports with RAID 0, 1 and 10. ASUS notes that M.2_2 shares bandwidth with SATA ports 5 and 6: when M.2_2 is populated, those two SATA ports are disabled, leaving four.

Memory: Standard Versus Overclocked Speeds

Four DDR4 DIMM slots take up to 128 GB in dual channel. The non-overclocked speeds ASUS lists run up to DDR4 3200. Every speed ASUS lists above that, up to DDR4 4866, is marked O.C. (overclocked): it depends on the processor’s memory controller, the memory kit and its XMP/DOCP profile, and it is not guaranteed.

Before buying memory for the ASUS TUF Gaming B550-PLUS WiFi II, check the ASUS memory QVL (qualified vendor list) for kits that ASUS has tested on this board.

Power Delivery, Cooling and Lighting

On the ASUS TUF Gaming B550-PLUS WiFi II, ASUS uses 8+2 DrMOS power stages with TUF-grade chokes and capacitors, and a large heatsink covers the VRM and choke area. Fan headers include a 4-pin CPU fan, a CPU OPT header, an AIO pump header and three chassis fan headers, and the chassis headers auto-detect PWM or DC fans.

For lighting there are two AURA addressable Gen 2 headers and two AURA RGB headers, so ARGB fans and strips can be synced from the board.

Networking, USB and Rear I/O

Wireless on the ASUS TUF Gaming B550-PLUS WiFi II is 2×2 Wi-Fi 6 (802.11 a/b/g/n/ac/ax) on the 2.4 and 5 GHz bands with Bluetooth 5.2, using an external antenna. Wired networking is Realtek 2.5Gb Ethernet.

On the rear panel ASUS lists two USB 3.2 Gen 2 ports (one Type-A, one Type-C), four USB 3.2 Gen 1 Type-A and two USB 2.0, plus DisplayPort 1.2 and HDMI 2.1 (4K at 60 Hz) for processors with integrated graphics, five audio jacks, optical S/PDIF out and the BIOS FlashBack button. Internal headers add two USB 3.2 Gen 1 and four USB 2.0 ports. BIOS FlashBack updates the BIOS from a USB stick, which helps when a newer CPU needs a newer BIOS.

Who This Is Not For

Builders planning an AM5 Ryzen system: the ASUS TUF Gaming B550-PLUS WiFi II is an AM4 board with DDR4 only. Anyone who wants PCIe 4.0 on the second M.2 slot or the second x16 slot, since both run at PCIe 3.0 from the chipset. Users of Ryzen 5000G/4000G APUs, who lose PCIe 4.0 entirely. And anyone who wants Wi-Fi on the 6 GHz band, which this 2.4/5 GHz Wi-Fi 6 module does not cover.

Ordering in the UAE

The ASUS TUF Gaming B550-PLUS WiFi II ships across the UAE in up to 3 business days, free on orders from AED 300. It includes a 1-year warranty from Totot, a 14-day return window for defective or non-matching items and 48 hours from delivery to report shipping damage.

Technical Specifications

• Model: ASUS TUF GAMING B550-PLUS WIFI II
• Socket: AMD AM4
• Chipset: AMD B550
• Supported CPUs: Ryzen 5000, 5000 G-Series, 4000 G-Series and 3000 Series desktop processors (see the ASUS CPU support list)
• Form factor: ATX, 30.5 x 24.4 cm
• Memory: 4 x DDR4 DIMM, up to 128 GB, dual channel; up to 3200 MHz standard, up to 4866 MHz (O.C.), depending on CPU
• Top x16 slot (CPU): PCIe 4.0 x16 with Ryzen 5000/3000; PCIe 3.0 x16 with Ryzen 5000G/4000G
• Chipset slots: 1 x PCIe 3.0 x16 (x4 mode; x1 mode when any x1 slot is used), 3 x PCIe 3.0 x1
• M.2_1 (CPU): PCIe 4.0 x4 & SATA with Ryzen 5000/3000; PCIe 3.0 x4 & SATA with 5000G/4000G; 2242–22110
• M.2_2 (chipset): PCIe 3.0 x4 & SATA; 2242–22110; shares bandwidth with SATA 5–6
• SATA: 6 x SATA 6Gb/s, RAID 0/1/10
• LAN: Realtek 2.5Gb Ethernet
• Wireless: 2×2 Wi-Fi 6 (802.11 a/b/g/n/ac/ax), 2.4/5 GHz; Bluetooth 5.2 (Bluetooth 5.2 functions need Windows 11 or later, per ASUS)
• Rear USB: 2 x USB 3.2 Gen 2 (Type-A + Type-C), 4 x USB 3.2 Gen 1 Type-A, 2 x USB 2.0
• Internal USB: 1 x USB 3.2 Gen 1 header (2 ports), 2 x USB 2.0 headers (4 ports)
• Video outputs: DisplayPort 1.2, HDMI 2.1 (4K@60Hz); need a CPU with integrated graphics
• Audio: Realtek 7.1 surround codec, 24-bit/192 kHz playback; optical S/PDIF out
• Power: 8+2 DrMOS power stages
• Fan headers: CPU, CPU OPT, AIO pump, 3 x chassis
• RGB: 2 x AURA addressable Gen 2, 2 x AURA RGB
• BIOS: 256 Mb flash ROM, UEFI AMI BIOS, BIOS FlashBack
• Warranty: 1-year warranty from Totot

Specifications are from the ASUS official TUF GAMING B550-PLUS WIFI II tech specs and product pages. Full details are published on the ASUS TUF GAMING B550-PLUS WIFI II tech specs page.

FAQ

Does the ASUS TUF Gaming B550-PLUS WiFi II support PCIe 4.0?

Yes, on the top x16 slot and M.2_1 with Ryzen 5000/3000 Series CPUs; the chipset slots run at PCIe 3.0.

Does the ASUS TUF Gaming B550-PLUS WiFi II support DDR5?

No. It has four DDR4 slots for up to 128 GB.

Does it work with AM5 processors?

No. It is an AM4 board for Ryzen 5000, 5000G, 4000G and 3000 Series.

Is DDR4 4866 guaranteed?

No. ASUS marks every speed above 3200 MHz as O.C., which depends on the CPU and the memory kit.

Can I use both M.2 slots and all six SATA ports?

No. When M.2_2 is populated, SATA ports 5 and 6 are disabled.

Can I use the HDMI port with a Ryzen 5 5600X?

No. The 5600X has no integrated graphics; the HDMI and DisplayPort outputs need a Ryzen G-Series APU.

Browse more in our Motherboards range. Every order from Totot carries a 1-year warranty covering manufacturing defects, with our 14-day return policy for defective or non-compliant items, and nationwide UAE delivery.