ASRock B660M PRO RS MicroATX Motherboard - Intel LGA1700

The ASRock B660M Pro RS is a MicroATX motherboard built on Intel's B660 chipset for LGA1700-socket 12th Gen Core processors. Its primary PCIe slot runs at PCIe 4.0 x16, which provides the full 32 GB/s bidirectional bandwidth that current discrete GPUs require — this is a meaningful specification advantage over B560-era boards, where PCIe 3.0 x16 was the ceiling. Memory support extends to DDR4 at 4800 MHz via XMP overclock profiles across two DIMM slots with a hard 32GB maximum. The 8-phase power delivery design is appropriately specified for 12th Gen Core i7 and i9 TDPs within a MicroATX thermal envelope, though it operates closer to its margin with unlocked Core i9 SKUs under sustained all-core loads. The B660 chipset enforces a firm no-CPU-overclocking policy at the platform level — this is not an ASRock limitation but an Intel chipset restriction.

This board targets builders who need a compact, cost-efficient foundation for a 12th Gen Intel system — home office workstations, small form-factor gaming rigs, or media production builds where a full ATX footprint is impractical. The three PCIe slots (4.0 x16, 3.0 x16, 3.0 x1) accommodate a GPU and one additional expansion card simultaneously, which covers the majority of desktop use cases. One configuration detail to verify: the sole M.2 slot is Key-E, designated for an optional WiFi module, not NVMe storage — primary SSD connectivity routes through the SATA ports. For users planning an NVMe-primary storage layout, confirming Key-M M.2 slot availability in the full specification sheet before purchase is essential.