MSI Pro B660M-A Wifi DDR5 Intel Motherboard

The MSI Pro B660M-A WiFi DDR5 is a Micro-ATX motherboard built around the Intel B660 chipset, designed for 12th Generation Intel Core, Pentium Gold, and Celeron processors using the LGA1700 socket. It combines professional-grade connectivity features with a compact 9.6 × 9.6-inch footprint, making it a practical choice for productivity workstations and space-conscious builds alike. Memory performance is a highlight: four DDR5 DIMM slots support up to 128 GB of non-ECC unbuffered DDR5 RAM in dual-channel mode. JEDEC base speed is 4800 MHz (1R), while Intel XMP profiles push overclocked speeds up to 6200+ MHz in single-DIMM-per-channel, single-rank configurations. This headroom is useful for content creators and data-intensive workflows that benefit from high-bandwidth memory. Storage flexibility is covered by two PCIe 4.0 x4 M.2 slots (both supporting 2242/2260/2280 devices), with the primary slot drawing lanes directly from the CPU for maximum throughput. MSI's M.2 Shield Frozr thermal pad helps keep NVMe drives at stable operating temperatures under sustained load. Four SATA 6Gb/s ports round out local storage, with RAID 0/1/5/10 support across SATA devices. Networking is handled by a Realtek RTL8125BG 2.5 Gbps wired LAN controller paired with an Intel Wi-Fi 6 module (802.11ax, MU-MIMO, 2.4 GHz/5 GHz with 160 MHz channel support, up to 2.4 Gbps) and Bluetooth 5.2. The wireless module ships pre-installed in the onboard M.2 Key-E slot. For display output, the board exposes two HDMI 2.1 (4K 60Hz, HDR) and two DisplayPort 1.4 (HBR3, 4K 60Hz) rear ports — active only when using a processor with integrated graphics. Audio is handled by a Realtek ALC897 codec delivering 7.1-channel HD audio. The rear I/O panel includes USB 3.2 Gen 2 10Gbps Type-A, USB 3.2 Gen 1 5Gbps Type-A, and USB 2.0 ports, plus a PS/2 keyboard/mouse connector. Internal headers add a USB 3.2 Gen 1 Type-C front-panel connector and two USB 2.0 headers. Fan management covers a 4-pin CPU header, a 4-pin water-pump header, and two 4-pin system fan headers. RGB headers include one 4-pin RGB and two 3-pin ARGB connectors, alongside four EZ Debug LEDs for quick POST diagnosis. Verified Specifications: • Form Factor: Micro-ATX, 9.6 × 9.6 in (244 × 244 mm) • Chipset: Intel B660 • Socket: LGA1700 (12th Gen Intel Core / Pentium Gold / Celeron) • Memory: 4× DDR5 slots, max 128 GB, JEDEC 4800 MHz, XMP OC up to 6200+ MHz • PCIe: 1× PCIe 4.0 x16 (CPU), 1× PCIe 3.0 x4 (chipset), 1× PCIe 3.0 x1 (chipset) • M.2: 2× Key-M PCIe 4.0 x4 (2242/2260/2280) • SATA: 4× SATA 6Gb/s; RAID 0/1/5/10 • LAN: Realtek RTL8125BG 2.5 Gbps • Wi-Fi: Intel Wi-Fi 6 (802.11ax), Bluetooth 5.2 • Audio: Realtek ALC897, 7.1-channel HD • Video Out: 2× HDMI 2.1, 2× DisplayPort 1.4 (iGPU only) • Power: 24-pin ATX + 8-pin + 4-pin ATX 12V • Warranty: 3 Years (MSI)