6 Rear I/O Ports on the ASRock B550 Phantom Gaming 4

PS/2 combo port Useful for older keyboards or mice, but most users will ignore it.

Two USB 2.0 ports Best for low-speed peripherals like a mouse or keyboard.

Four USB 3.2 Gen1 ports These offer 5 Gbps speeds, fine for external drives and flash drives.

One USB 3.2 Gen2 Type-A port Provides 10 Gbps speeds for faster data transfers.

One USB 3.2 Gen2 Type-C port Also 10 Gbps, ideal for modern devices like phones or external SSDs.

HDMI, DisplayPort, Gigabit Ethernet, and three audio jacks Supports dual monitors, wired networking, and standard 3.5mm audio.