MSI B450M-A PRO MAX II AM4 M-ATX Motherboard – Ryzen, DDR4, 2.5G LAN

Your old AM4 build still works, but the single-channel RAM and 1 GbE port are holding you back. This MSI B450M-A PRO MAX II slots in as a drop-in upgrade — same socket, same case, but now with 2.5 GbE LAN and dual-channel DDR4 up to 4133 MHz (OC).

Fits compact M-ATX builds. One PCIe 3.0 x16 slot for your GPU, a Turbo M.2 slot running at Gen3 x4 for NVMe SSDs, and four SATA ports if you're still running mechanical drives. HDMI 2.0b and DVI-D output for 4K at 60 Hz when using integrated graphics.

Supports Ryzen 5000, 4000 G, 3000, 2000, and 1000 series plus Athlon with Vega graphics. No BIOS lottery — it's designed around the chips you already have

• AMD Socket AM4, B450 chipset – supports Ryzen 5000/4000 G/3000/2000/1000 series and Athlon Vega
• 2× DDR4 DIMM slots, dual-channel up to 4133 MHz (OC), 64 GB max capacity
• Realtek 8125BG 2.5 GbE LAN for faster wired connections
• Turbo M.2 (Gen3 x4) + 4× SATA 6 Gb/s storage options
• HDMI 2.0b and DVI-D display output (4K@60 Hz with processor graphics)
• M-ATX form factor for compact office or home builds