ASROCK B550 PG Velocita DDR4 AMD Motherboard

The ASRock B550 PG Velocita is a full-size ATX motherboard built on the AMD B550 chipset, designed for AMD AM4 socket processors including 3rd Gen AMD Ryzen (Matisse) series. It measures 12.0 inches by 9.6 inches (30.5 cm x 24.4 cm) and is constructed on a 2-ounce copper PCB with high-density glass fabric layers for stable signal integrity and improved thermal performance during sustained workloads or overclocking sessions. At the heart of the power delivery system is a 14-phase Digi Power design using 50A Dr. MOS integrated power stages, backed by premium 60A power chokes and Nichicon 12K black capacitors (100% Japan-made conductive polymer type). The board accepts 8+4 pin 12V CPU power connectors via Hi-Density Power Connectors, which ASRock states reduce power loss and connector temperatures compared to standard connectors. Memory support spans four DDR4 DIMM slots in dual-channel configuration, accommodating up to 128GB of unbuffered ECC and non-ECC memory. Supported speeds with Matisse CPUs range from DDR4-2133 natively up to DDR4-4733+ via overclocking. XMP profiles are also supported. For storage, the board provides one Hyper M.2 socket (M2_1) supporting PCIe Gen4 x4 NVMe drives up to 64 Gb/s (with Matisse), one additional M.2 socket (M2_2) supporting PCIe Gen3 x2 or SATA3, and six SATA3 6.0 Gb/s ports with RAID 0, 1, and 10 support. Note that M2_2 shares lanes with SATA3 ports 5 and 6. Expansion slots include one PCIe 4.0 x16 slot (Gen4 x16 with Matisse), one PCIe 3.0 x16 slot (Gen3 x4 mode), two PCIe 3.0 x1 slots, and one M.2 Key-E slot for a 2230 Wi-Fi/Bluetooth module. AMD CrossFireX multi-GPU configuration is supported. Networking is handled by a Realtek Dragon RTL8125BG controller delivering 2.5 Gigabit LAN (10/100/1000/2500 Mb/s) with Phantom Gaming LAN software for traffic prioritisation. Audio is powered by a Realtek ALC1220 codec offering 7.1-channel HD audio with a 120 dB SNR DAC, NE5532 front-panel headset amplifier (up to 600 Ohm), PCB isolation shielding, and Nahimic Audio software. The rear I/O panel includes one HDMI 2.1 port (4K/60Hz), one USB 3.2 Gen2 Type-A (10 Gb/s), one USB 3.2 Gen2 Type-C (10 Gb/s), two USB 3.2 Gen1 ports, four USB 2.0 ports, one optical S/PDIF output, one RJ-45 LAN port, gold-plated HD audio jacks, and a PS/2 keyboard/mouse port. Two antenna mounting points are present for an optional Wi-Fi card. RGB lighting is managed through ASRock Polychrome RGB Sync, with two 12V RGB headers (up to 36W each) and two 5V addressable RGB headers (up to 15W each). The board also includes onboard Dr. Debug LED, power button with LED, and reset button with LED for convenient troubleshooting. Key Specifications at a Glance: - Socket: AMD AM4 | Chipset: AMD B550 - Form Factor: ATX (12.0 x 9.6 in / 30.5 x 24.4 cm) - Memory: 4x DDR4 DIMM, up to 128GB, DDR4-4733+ (OC) - Storage: 1x M.2 PCIe Gen4 x4, 1x M.2 PCIe Gen3 x2/SATA3, 6x SATA3 - PCIe: 1x PCIe 4.0 x16, 1x PCIe 3.0 x16 (x4 mode), 2x PCIe 3.0 x1 - LAN: 2.5 Gigabit (Realtek RTL8125BG) - Audio: Realtek ALC1220, 7.1 CH, 120 dB SNR - USB: 2x USB 3.2 Gen2 (rear), 2x USB 3.2 Gen1 (rear), 4x USB 2.0 (rear) - BIOS: 256Mb AMI UEFI with GUI - Certifications: FCC, CE, ErP/EuP ready