C6-K5LGA-5R1 C6-K5LGA-680 C6-K5LGA-680M C6-K5LGA-6R2 C6-K5LGA-820 C6-K5LGA-820M C6-K5LGA-821 C6-K5LGA8R2 C6-K5LGA-8R2 C6-K5LGA-8R2N