FOR 14221-1M ES1-311 Laptop Motherboard — Supports N2830 / N2840

Replacement laptop mainboard model 14221-1M engineered for ES1-311 series notebooks. Compatible with N2830 and N2840 CPUs, this motherboard is intended as a direct-fit swap for repair or refurbishment of ES1-311 machines. Exact model: 14221-1M; Fits: ES1-311; CPU support: N2830, N2840.