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The ASUS PRIME B660M-A D4 stands out as a Micro-ATX board that brings PCIe 5.0 to Intel's mainstream B660 platform, a feature often reserved for pricier Z690 models. Built for 12th and 13th Gen Core processors, it pairs a robust VRM with comprehensive cooling and modern connectivity, making it a smart foundation for compact productivity rigs and gaming PCs alike.

Highlights

• Intel LGA 1700 socket for 12th/13th Gen Intel Core, Pentium Gold, and Celeron processors
• Intel B660 chipset with PCIe 5.0 x16 slot for next-gen graphics
• 4 x DDR4 DIMM slots, up to 128GB, with ASUS OptiMem II for high-frequency memory stability
• Dual M.2 slots (PCIe 4.0 x4) with flexible heatsink for fast NVMe SSDs
• Intel Wi-Fi 6 (802.11ax) and Bluetooth 5.2 for wireless connectivity
• Intel 1Gb Ethernet for reliable wired networking
• Comprehensive cooling: VRM heatsink, M.2 heatsink, PCH heatsink, Fan Xpert 2+
• ASUS 5X Protection III for enhanced durability and safety

In daily use

This board handles everything from office multitasking to 1080p gaming with ease. The PCIe 5.0 slot ensures future GPU compatibility, while four DDR4 slots let you reuse existing memory or install up to 128GB for heavy workloads. Wi-Fi 6 delivers low-latency wireless, and the Realtek 7.1-channel audio codec provides immersive sound. Rear USB ports include a 10Gbps Type-A and a Type-C, plus DisplayPort, HDMI, and VGA for flexible monitor setups.

Full specifications

• Socket: LGA 1700
• Chipset: Intel B660
• Form Factor: Micro-ATX (24.4 cm x 24.4 cm)
• Memory: 4 x DDR4 DIMM, up to 128GB, speeds up to 5333MHz (OC)
• Expansion Slots: 1 x PCIe 5.0 x16, 1 x PCIe 3.0 x16 (x4 mode)
• Storage: 2 x M.2 (PCIe 4.0 x4), 4 x SATA 6Gb/s
• Networking: Intel 1Gb Ethernet, Wi-Fi 6 (802.11ax), Bluetooth 5.2
• Audio: Realtek 7.1 Surround Sound High Definition Audio
• Rear USB: 1x USB 3.2 Gen 2 Type-A, 3x USB 3.2 Gen 1 (2x Type-A, 1x Type-C), 2x USB 2.0
• Internal USB: 1x USB 3.2 Gen 1 header (2 ports), 2x USB 2.0 headers (4 ports)
• Video Outputs: DisplayPort, HDMI, VGA
• Power Connectors: 1x 24-pin ATX, 1x 8-pin ATX 12V
• OS Support: Windows 11 / 10 64-bit

Final note

For builders seeking a balance of modern features and compact size, the ASUS PRIME B660M-A D4 delivers PCIe 5.0, Wi-Fi 6, and robust power delivery without the Z690 price tag. It's a dependable choice for a wide range of builds.