FOR 520-15IKB Laptop Motherboard NM-B451 (5B20Q15640) — CPU I58250U, L81BF, UMA, DRAM 4G, FP

Replacement motherboard for Lenovo 520-15IKB series, model NM-B451 (5B20Q15640). Equipped with CPU I58250U, L81BF, UMA integrated graphics, onboard DRAM 4G and FP. Suited for repairs or component-level replacements in compatible 520-15IKB systems.