Features

Platform & CPU Compatibility

• Compatible with Intel 12th to 14th Generation Core, Pentium Gold, and Celeron processors using the LGA 1700 socket.

• Built on the Intel B660 chipset, offering a balance of modern features minus extreme overclocking.

Memory Support

• Has four DDR4 DIMM slots, dual-channel memory.

• JEDEC base speeds include 2133, 2400, 2666, 2933 MHz depending on CPU.

• Supports overclocked speeds (XMP/OC) up to around 4600 MHz with suitable modules.

• Maximum memory capacity: 128 GB (32 GB per slot).

Expansion & Slots

• One PCIe 4.0 x16 slot for the graphics card.

• Two PCIe 3.0 x1 slots for additional expansion items like audio, networking, or capture cards.

Storage Options

• One M.2 slot (Key M) supporting PCIe 4.0 ×4 (for NVMe SSDs).

• Four SATA 6 Gb/s ports for traditional hard drives or SATA SSDs.

• RAID support for SATA drives (RAID 0/1/5/10 depending on configuration).

Connectivity & I/O Ports

• Rear I/O: Display outputs (HDMI and DisplayPort, depending on CPU graphics support), multiple USB ports (USB-A and USB-C), audio jacks, NJ-45 LAN port.

• Onboard LAN typically 1 Gigabit.

• Audio chipset: Realtek ALC series, ~7.1-channel HD audio.

Power Delivery & Build Quality

• Core Boost technology (MSI’s optimized power delivery layout) to support multi-core CPUs under load.

• Quality chokes, capacitors and solid trace layout ensure power stability.

• Standard ATX 24-pin main power connector + an 8-pin CPU 12V power connector.

Cooling & Thermal Design

• Basic heatsinks on VRMs; needs good case airflow for best performance.

• Fan headers for CPU fan + system fans, plus motherboard headers for fan controls in BIOS.

Additional Features

• BIOS with standard MSI features: memory profiles (XMP), board monitoring (voltages, temperatures), fan control.

• Professional/Business focus: reliability, durability, emphasizing stability over flashy gaming extras.

• Compact Micro-ATX form factor (~24.4 × 24.4 cm), fits into smaller mid-tower cases.

Conclusion

The MSI B660M-P DDR4 is a solid choice for users who want a reliable, no-nonsense motherboard that supports modern Intel CPUs and offers good features like PCIe 4.0, fast DDR4 support, M.2 storage, and adequate power delivery without paying for premium extras. It’s ideal for business PCs, general productivity, or a mid-range gaming build. For high overclocking, SLI/CrossFire multi-GPU setups, or the most bleeding-edge features, you’d look to a higher-end board—but for many users, this one hits a very sweet spot.