ASUS Corporate Stable Model (CSM) is a commercial program designed to provide stable, reliable motherboards for businesses of all sizes. ASUS CSM offers up to 12-month+ product lifecycle support and a 6 month end-of-life notice to allow sufficient lead times for your organization to get ready for product transitions. Program offerings may vary by region. ASUS issues an Engineering Change Notice (ECN) before product revisions, and an end-of-life (EOL) notice six months before a product's EOL, allowing lead time for your organization to ready itself for product transition. Please consult your local sales representative for more information.