If the M.2 slot is used with a SATA M.2 SSD, one SATA port may be disabled (usually SATA port 1). 5. Rear I/O Panel | Port Type | Quantity | Details | | :--- | :--- | :--- | | PS/2 | 1 | Combo (keyboard/mouse) – common on OEM boards | | USB 2.0 Type-A | 2 | Black ports | | USB 3.2 Gen 1 Type-A | 4 | Blue ports (5 Gbps) | | USB 3.2 Gen 2 Type-A | 0 | Not present on this board | | USB Type-C | 0 | Not present | | Video outputs | 3 | 1x VGA, 1x HDMI 1.4, 1x DisplayPort 1.2 | | Audio jacks | 3 | Line-in, Line-out, Mic (Realtek ALC887 or similar) | | Ethernet | 1 | RJ-45 (Realtek RTL8111H – Gigabit) | | Serial port (COM) | 1 | 9-pin male (legacy industrial use) |

There is no PCIe 4.0 support because B460 chipset is limited to PCIe 3.0. 4. Storage Interfaces | Interface | Quantity | Version | Max Speed | Notes | | :--- | :--- | :--- | :--- | :--- | | SATA 6Gb/s ports | 4 | SATA III | 6 Gbps | Typically ports 1–4 | | M.2 slot (key M) | 1 | PCIe 3.0 x4 / SATA III | ~3.94 GB/s | Supports NVMe and SATA M.2 SSDs (2242/2260/2280) | | M.2 slot for WLAN | 1 (sometimes) | Key E | PCIe 3.0 x1 + USB | For pre-installed Intel Wi-Fi/BT module (not always populated) |

Here is the detailed, long-form specification breakdown for the motherboard.