ASUS Pro WS WRX80E-SAGE SE WIFI. ✓ Original I/O shield (pre-mounted on the motherboard). • EEB form factor (12.2″ × 13″) — confirm your case supports EEB before purchasing. About the missing M.2 heatsink: The decorative heatsink/cover for the right-side M.2 slot (next to the power & reset buttons) is missing.The M.2 slot itself is fully functional — an SSD installed there will work normally, but may run hotter under sustained heavy workloads.
