ASROCK B550 Phantom Gaming 4 DDR4 AMD Motherboard

The ASRock B550 Phantom Gaming 4 is a full-size ATX motherboard built on the AMD B550 chipset, designed for AMD AM4 socket processors including 3rd Gen AMD Ryzen (Matisse) CPUs. It measures 12.0 x 9.6 inches (30.5 x 24.4 cm) and is constructed with a 2oz copper PCB, High Density Glass Fabric, and Sapphire Black finish for improved signal integrity and thermal performance. The board features an 8-phase Digi Power design with a Premium 50A power choke and XXL Aluminum Alloy Heatsink, delivering stable voltage to the processor across stock and overclocked configurations. Four DDR4 DIMM slots support up to 128GB of dual-channel unbuffered memory, with XMP support and compatibility up to DDR4 4733 (OC) on Ryzen APU platforms. Storage options are comprehensive: six SATA3 6.0 Gb/s ports with RAID 0/1/10 support, one Hyper M.2 slot (M2_1) capable of PCIe Gen4 x4 at up to 64 Gb/s with Matisse CPUs, and a second M.2 slot (M2_3) supporting PCIe Gen3 x2 or SATA3. Note that M2_3 shares lanes with SATA3 ports 5 and 6; enabling one disables the other. Expansion slots include one PCIe 4.0 x16 primary slot with a reinforced steel latch, one PCIe 3.0 x16 (x4 mode), two PCIe 3.0 x1 slots, and one M.2 Key E slot for an optional 802.11ac Wi-Fi module (module not included). AMD CrossFireX and Quad CrossFireX multi-GPU configurations are supported. AMD Smart Access Memory and AMD StoreMI technology are also compatible. Audio is handled by a Realtek ALC1200 codec delivering 7.1-channel HD audio with PCB isolate shielding, individual PCB layers for left/right channel separation, surge protection, and Nahimic Audio software for enhanced spatial sound. Networking is provided by a Realtek RTL8111H Gigabit LAN controller with ESD and lightning protection. Rear I/O includes six USB 3.2 Gen1 Type-A ports, one HDMI 2.1 port (4K@60Hz capable), one PS/2 keyboard/mouse port, one RJ-45 LAN port, HD audio jacks, and two antenna ports for optional Wi-Fi. Onboard headers include two RGB LED headers, two Addressable (ARGB) LED headers, one USB 3.2 Gen1 header, two USB 2.0 headers, and fan connectors with Smart Fan Speed Control for CPU and up to four chassis/water pump fans. The board includes ASRock POST Status Checker (PSC) for quick boot diagnostics, Full Spike Protection across USB, audio, and LAN ports, and ASRock Polychrome SYNC for RGB ecosystem control. The 256Mb AMI UEFI BIOS supports Plug and Play, ACPI 5.1, and jumperfree overclocking. Covered by a 3-year manufacturer warranty. FCC and CE certified; ErP/EuP ready. Verified Specifications: - Chipset: AMD B550 - Socket: AM4 - Form Factor: ATX (12.0 x 9.6 in / 30.5 x 24.4 cm) - Memory: 4x DDR4 DIMM, max 128GB, up to DDR4 4733 (OC) with APUs - Primary PCIe Slot: PCIe 4.0 x16 (Matisse); PCIe 3.0 x16 (APU) - Storage: 6x SATA3, 1x M.2 PCIe Gen4 x4, 1x M.2 PCIe Gen3 x2/SATA3 - Audio: Realtek ALC1200, 7.1CH HD - LAN: Realtek RTL8111H, 1GbE - USB (Rear): 6x USB 3.2 Gen1 - Video Output: 1x HDMI 2.1 (4K@60Hz) - RGB: 2x RGB headers, 2x ARGB headers - Warranty: 3 Years