ASUS PRIME B660M-K D4 is an LGA1700 motherboard for compatible 14th, 13th and 12th Gen Intel Core processors, as well as Pentium Gold and Celeron. It provides the foundation for a desktop PC built on this processor platform.
Two DDR4 slots support up to 64 GB of non-ECC unbuffered memory with dual-channel architecture. One PCIe 4.0/3.0 x16 slot and two PCIe 3.0 x1 slots accommodate expansion cards.
For storage, the board has two M.2 Key M slots for 2242, 2260 or 2280 drives and four SATA 6Gb/s ports. Rear-panel display outputs are D-Sub and HDMI; graphics output depends on the installed processor. Other rear connections include USB ports, 1Gb Ethernet, audio jacks and a PS/2 combo port. An internal COM header supports systems using a serial connection.